Medical School

Hacettepe Unv. Medical (English) Faculty, 1995-2001

Post-Graduate Training

Başkent University Medical Faculty Radiology Department, 2001-2005

Specialty thesis: “Evaluation of Right and Left Ventricular Functions with FLASH 2D Cardiac Cine-MRI” (2005). Consultant: Prof. Ahmet Muhteşem Ağıldere, M.D.

Academic Title

• Asst. Prof. 17/07/2009-20/09/2011
• Assoc. Prof. 20/09/2011-21/12/2017
• Professor 21/12/2017-09/10/2021 Başkent University  Medical Faculty

Professional Experience

• 2005-2006 and 2008-2021 Başkent University Medical Faculty, Ankara Hospital Interventional Radiology Unit 

• 2007 Kütahya Military Hospital, Radiology Department 

PROFESSIONAL MEMBERSHIPS

• Türk Radyoloji Derneği (Turkish Radiology Association) - TRD
• Türk Girişimsel Radyoloji Derneği (Turkish Interventional Radiology Association) - TGRD 
• Türk Manyetik Rezonans Derneği (Turkish Magnetic Resonance Association) - TMRD
• Cardiovascular and Interventional Radiological Society of Europe – CIRSE
• European Society of Radiology -ESR
• European Society for Vascular Surgery - ESVS
• American College of Surgeons – ACS

AWARDS

CVIR Awards 2019: Cardiovascular And Interventional Radiology, Most Cited Scientific Paper of the Year: Umut Özyer, "Transcatheter Arterial Embolization with N-Butyl-2-Cyanoacrylate in the Management of Spontaneous Hematomas"

SCIENTIFIC STUDIES

ARTICLES

Whole articles accepted for publication and published in journals screened for indexes that are taken basis for associate professorship by YÖK

1. Stent placement in pediatric patients with hepatic artery stenosis or thrombosis after liver transplantation. TRANSPLANTATION PROCEEDINGS (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2006;38(10):3656-3660. Authors:Fatih Boyvat,Cüneyt Aytekin,Hamdi Karakayalı, Umut Özyer,Şinasi Sevmiş,Remzi Emiroğlu,Mehmet Haberal.

2. Percutaneous therapy of ureteral obstructions and leak after renal transplantation: long-term results. CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2007; 30(6):1178-1184. Authors:Cüneyt Aytekin,Fatih Boyvat,Ali Harman, Umut Özyer,Turan Çolak,Mehmet Haberal.

3. Percutaneous management of anastomotic bile leaks following liver transplantation. DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2007; 13(2):101-104. Authors:Cüneyt Aytekin,Fatih Boyvat,Ali Harman, Umut Özyer,Şinasi Sevmiş,Mehmet Haberal.

4. Management of infracentimetric thyroid nodules with respect to ultrasonographic features. EUROPEAN RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2007; 17(5):1358-1364. Authors: Reha Butros, Fatih Boyvat, Umut Özyer (Sorumlu yazar),Banu Bilezikçi,Zübeyde Arat,Cüneyt Aytekin,Nilgün Güvener,Beyhan Demirhan.

5. Percutaneous sonographic guidance for TIPS in Budd-Chiari syndrome: Direct simultaneous puncture of the portal vein and inferior vena cava. AMERICAN JOURNAL OF ROENTGENOLOGY (SCI-Exp : Science Citation Index- Expanded (SCI dahil)), 2008; 191(2):560-564. Authors:Fatih Boyvat,Ali Harman, Umut Özyer,Cüneyt Aytekin,Zübeyde Arat.

6. Correction of displaced peritoneal dialysis catheters with an angular stiff rod. ACTA RADIOLOGICA (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2009; 50(2):139-143., Authors: Umut Özyer,Ali Harman,Cüneyt Aytekin,Fatih Boyvat,Nurhan Özdemir.

7. Long-term results of angioplasty and stent placement for treatment of central venous obstruction in 126 hemodialysis patients: A 10-year single-center experience. AMERICAN JOURNAL OF ROENTGENOLOGY (SCIExp : Science Citation Index-Expanded (SCI dahil)), 2009; 193(6):1672-1679. Authors:Umut Özyer,Ali Harman,Erkan Yıldırım,Cüneyt Aytekin,Feza Karakayalı,Fatih Boyvat.

8. Application of the amplatzer vascular plug in endovascular occlusion of dialysis accesses. CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2009; 32(5):967- 973. Authors:Umut Özyer,Ali Harman,Cüneyt Aytekin,Fatih Boyvat,Feza Karakayalı.

9. CT-guided cutting needle lung biopsy using modified coaxial technique: Factors effecting risk of complications. EUROPEAN JOURNAL OF RADIOLOGY(SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2009; 70(1):57-60., Authors:Erkan Yıldırım,Ismail Kırbaş,Ali Harman,Umut Özyer,Hüseyin Gürkan Töre,Cüneyt Aytekin,Fatih Boyvat.

10. Tissue Doppler study of the right ventricle with a multisegmental approach: Comparison with cardiac magnetic resonance imaging. JOURNAL OF THE AMERICAN SOCIETY OF ECHOCARDIOGRAPHY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2009; 22(4):361-368., Authors:Leyla Elif Sade,Öykü Gülmez,Umut Özyer,Esra Özgül,Muhteşem Ağıldere,Haldun Müderrisoğlu.

11.  Devascularization of head and neck paragangliomas by direct percutaneous embolization. CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2010; 33(5):967- 975., Authors:Umut Özyer,Ali Harman,Erkan Yıldırım,Cüneyt Aytekin,Tankut Akay,Fatih Boyvat.

12. Ultrasound-guided brachiocephalic vein catheterization in infants weighing less than five kilograms. JOURNAL OF VASCULAR ACCESS (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2015; 16(6):512-514., Authors:Cüneyt Aytekin,Umut Özyer,Ali Harman,Fatih Boyvat.

13. Diagnosis and treatment of Takayasu arteritis in Turkey: A single center results. TURK GOGUS KALP DAMAR CERRAHISI DERGISI-TURKISH JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY(SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2015; 23(1):39-44., Authors:Tankut Akay,Ali Harman,Eftal Yücel,Umut Özyer,Bahadır Gültekin.

14. Transcatheter Arterial Embolization with N-Butyl-2-Cyanoacrylate in the Management of Spontaneous Hematomas. CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY(SCI-Exp : Science Citation Index- Expanded (SCI dahil)), 2017; 40(1):41-49., Authors:Umut Özyer.

15. Tandem ureteral stents in the management of double-J stent dysfunction in gynecological malignancies. Diagnostic & Interventional Imaging (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2017; 98(9):601- 608., Authors:Umut Özyer,Ayhan Dirim.

16. Long-term results of percutaneous cholecystostomy for definitive. ACTA GASTROENTEROLOGICA BELGICA (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2018; 81(3):393-397. Authors:Umut Özyer

17. Long-term Results of endovascular treatment for arteriovenous dialysis accessthrombosis in 143 patients: A single center ecperience. JOURNAL OF VASCULAR ACCESS. (SCI-Exp : Science Citation Index-Expanded (SCI dahil)) , 2019;20(5):545-552. Authors: Yunus Yılmazsoy, Umut Özyer

Whole articles accepted for publication and published in journals under the scope of international indexes screened for indexes other than those taken as basis for associate professorship by YÖK

1. Karotis arter stenozunda stent uygulaması rejyonel anestezi ile selektif şant kullanılarak yapılan karotis endarderektomiye alternatif midir?. (Is stent application in carotid artery stenosis and alternative to carotid endarterectomy performed using regional anesthesia and selective shunt?). DAMAR CERRAHİSİ DERGİSİ (Index Copernicus), 2010; 19(3):63-68. Authors:Ata Ecevit,Hakkı Tankut Akay,Erdal Aslım,Ali Harman, Umut Özyer,Salih Özçobanoğlu,Bahadır Gültekin,Murat Özkan,Atilla Sezgin,Sait Aşlamacı.

2. Kateterizasyon sonrası gelişen iyatrojenik femoral arter psödoanevrizma tedavisi deneyimlerimiz. (Our experience regarding treatment of post-catheterization iatrogenic femoral artery pseudo-aneurysm). DAMAR CERRAHİSİ DERGİSİ (Index Copernicus), 2012; 21(2):120-123. Authors:Hakkı Tankut Akay,O Korun,Erdal Aslım,Ali Harman, Eşref Umut Özyer,Murat Özkan,İzzet Hafez,Sarp Beyazpınar,Bahadır Gültekin.

3. Abdominal Aort Anevrizmalarında Endovasküler Stent-Greft Tedavi Açık Cerrahi Tedaviye Göre Morbidite Açısından Daha Uygundur. (Endovascular Stent-Graft Treatment (Endovascular Stent-Graft Treatment is A More Suitable Treatment for Morbidity With Respect to Open Surgery).  DAMAR CERRAHİSİ DERGİSİ (Index Copernicus), 2013; 22(1):31-40. Authors:K Ünal, Th Akay, E Aslım, A Harman, B Gültekin, M Özkan, G Aşkın, U Özyer, F Boyvat, A Sezgin, S Aşlamacı, 8.yzr

4. Treatment with ultrasound guided percutaneous cholecystostomy in acute cholecystitis: a 10-year single-center experience.. CUKUROVA MEDICAL JOURNAL (Emerging Sources Citiantion Index), 2017; 42(3):465-469. Authors:Muge Yıldırım,Utku Mahir Yıldırım, Umut Özyer* (sorumlu yazar), 2.yzr

5. Is endovascular therapy effective in acute femoropopliteal bypass graft failure? ACTA ONCOLOGİCA TURCİCA Sehnaz Tezcan, Umut Özyer, Funda Ulu Öztürk, Hakkı Tankut Akay, Fatih Boyvat. 52(1):144-154 Doi: 10.5505/aot.2019.03064

6. Effectiveness of endo-vascular treatment in carotid artery stenosis: A single center study ANN MED RES Pelin Zeynep Bekin Sarikaya, Ali Harman, Umut Özyer, Fatih Boyvat. 2019;26(7):1204-9. 

Articles published or accepted for publication that are published in journals screened for indexes taken as basis for associate professorship applications by YÖK (whole tezt reports published in proceedings as case report, technical note, letter-to-editor, summary, compilation)

1. MR imaging and ultrasound of fetal cervical cystic lymphangioma: utility in antepartum treatment planning. DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2005; 11(2):87-89. Authors:Mehmet Tekşam, Umut Özyer,Alexander Mckinney,Ismail Kırbaş.

2. Fetal MRI of a severe Dandy-Walker malformation with an enlarged posterior fossa cyst causing severe hydrocephalus. FETAL DIAGNOSIS AND THERAPY (SCI-Exp :Science Citation Index-Expanded (SCI dahil)), 2005; 20(6):524-527. Authors:Mehmet Tekşam, Umut Özyer, Alexander Mckinney,Ismail Kırbaş,Banu Çakır.

3. +H-proton-magnetic resonance spectroscopic findings in a patient with acute hemicerebellitis presenting without localized signs: a case report. EUROPEAN JOURNAL OF PAEDIATRIC NEUROLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2006; 10(4):202-206. Authors:Engin Melek, Umut Özyer, İlknur Erol,Füsun Alehan,Muhteşem Ağıldere.

4. Presentation of an unusual case of hepatic alveolar echinococcosis: multidetector CT and US findings. ACTA GASTRO-ENTEROLOGICA BELGICA (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2007; 70(1):34-35. Authors: Umut Özyer, İsmail Kırbaş,Barış Hasdoğan,Alper Bozkurt,Mehmet Coşkun.

5. Percutaneous therapy for anastomotic bile leak in liver-transplant patients with nondilated bile ducts. CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2007; 30(4):761-764., Authors:Cüneyt Aytekin,Fatih Boyvat,Ali Harman, Umut Özyer, Hamdi Karakayalı,Mehmet Haberal.

6. Coil embolization of a congenital intrahepatic arterioportal fistula: increasing experience in management. PEDIATRIC RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2008; 38(11):1253-1256.Authors: Umut Özyer, İsmail Kırbaş,Cüneyt Aytekin,Barış Hasdoğan.

7. Emergency renal ablation for life-threatening hemorrhage from multiple capsular branches during renal artery stenting. CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY(SCI-Exp : Science Citation Index- Expanded (SCI dahil)), 2010; 33(3):663-666. Authors:Cüneyt Aytekin,Utku Mahir Yıldırım, Umut Özyer, Ali Harman,Fatih Boyvat.

8. Reply to A Letter (Ms# 2010-0423) re: Aytekin, Yildirim M, Özyer U, Boyvat F (2010). Emergency Renal Ablation for Life-Threatening Hemorrhage from Multiple Capsular Branches During Renal Artery Stenting. Cardiovasc Intervent Radiol 33(3):663-666. CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2011; 34(3):654-654., Authors: Cuneyt Aytekin, Umut Özyer.

9. Use of the Amplatzer (R) Vascular Plug II in endovascular occlusion of dialysis shunts with tributary veins. JOURNAL OF VASCULAR ACCESS (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2011; 12(1):76-77., Authors: Umut Özyer, Cüneyt Aytekin,Utku Mahir Yıldırım,Ali Harman,Feza Karakayalı,Fatih Boyvat.

10. Reversible diffuse arterial spasm in a patient with primary oxalosis. TURK GOGUS KALP DAMAR CERRAHISI DERGISI-TURKISH JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY (SCI-Exp : ScienceCitation Index-Expanded (SCI dahil)), 2013; 21(2):479-482., Authors: Umut Özyer, Tankut Akay,Fatih Boyvat.

11. Reply to the letter: "N-butyl cyanoacrylate glue: the best hemostatic embolic agent for patients with acute arterialbleeding". CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2017; 40(8):1292-1292. Authors: Umut Özyer.

12. Direct transarterial embolization with N-butyl-2-cyanoacrylate should be the choice of treatment for spontaneoushematomas in patients on anticoagulation treatment. CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY (SCI-Exp :Science Citation Index-Expanded (SCI dahil)), 2017; 40(10):1649-1650., Authors: Umut Özyer 

13. Percutaneous Treatment of Hepatic Hydatid Cysts is Safe and Effective with Low Profile Single Step Trocar Catheter. ACTA RADIOLOGICA (SCI-Exp : Science Citation Index-Expanded (SCI dahil)), 2018; 59(7):NP1-2. Authors: Umut Özyer.

Other studies (case reports, technical note, letter-to-editor, summary, compilation)  accepted for publication and published in journals under the scope of international indexes screened for indexes other than those taken as basis for associate professorship by YÖK

1. İki Olguda Kokaine Bağlı Akut İnme: BT ve MRG Bulguları. (Cocaine-related Acute Stroke in Two phenomena: CT and MRI Findings). TÜRK NÖROŞİRURJİ DERGİSİ (Google Scholar), 2008; 18(3):179-182. Authors: Umut Özyer,Mehmet Tekşam,Ismail Kırbaş

2. Imaging of the retained laparatomy towel migrated into the colon lumen. THE INDIAN JOURNAL OF RADIOLOGY AND IMAGING (index copernicus), 2009; 19(3):219-221. Authors: Umut Özyer, Fatih Boyvat.

3. Endovascular Management of Surgically Uncontrolled Hemorrhage Post-Radical Nephrectomy: Case Report (Radikal Nefrektomi Sonrası Cerrahi Olarak Kontrol Edilemeyen Kanamanın Endovasküler Yöntemle Tedavisi:Olgu Sunumu). JOURNAL OF UROLOGICAL SURGERY (Emerging Sources Citiantion Index), 2018; 5(1):41-43.Authors:Ayhan Dirim, Umut Özyer.

4. Nadir görülen bir olgu: Lomber spinal anjiyolipom. (A Rare Phenomenon: Lumbar Spinal Angiolipoma). CUKUROVA MEDICAL JOURNAL (Emerging SourcesCitiantion Index), 2018; 43(1):41-43. Authors:Feride Kural Rahatli, Umut Özyer.

REPORTS

Reports published as summary after oral presentation in scientific meetings such as international congresses, symposiums and workshops

1. Early and late postoperative stent placement to the hepatic artery after liver transplantation. Fatih Boyvat, Cuneyt Aytekin, Gokhan Moray, Umut Özyer, Aydın Dalgıç, Mehmet Haberal. American Transplant Congress 2005: Seattle?USA; 21/05/2005 - 25/05/2005.

2. Embolization of the liver biopsy tract with n-butylcyanoacrylate in liver transplant recipients. Fatih Boyvat, Umut Özyer, Figen Özçay, Gökhan Moray,Cüneyt Aytekin,Mehmet Haberal. 9th Congress of the Asian Society of Transplantation, CAST: Karaçi-Pakistan; 23/11/2005 - 26/11/2005.

3. Stent placement in pediatric patients with hepatic artery stenosis or thrombosis after liver transplantation. Fatih Boyvat,Cuneyt Aytekin,Hamdi karakayali, Umut Özyer, Remzi Emiroğlu,Mehmet Haberal. European Congress Of Radiology, ECR 2006: Vienna-Austuria; 03/03/2006 - 07/03/2006.

4. Ultrasound-guided percutaneous  cholecystostomy for acute cholecystitis in high risk patients. Yahya Ekici,Ümit Özçelik, Umut Özyer,Gökhan Moray. 9th International Euroasian Congress of Surgery and Gastroenterology: Baku-Azerbaijan; 15/05/2006 - 18/05/2006. 

5. Renal artery stenting in elderly patients: 1 year follow-up. Beril Akman, Rengin Elsurer,Siren Sezer, E. Umut Özyer, Zubeyde Arat,Fatih Boyvat,Nurhan Özdemir,Mehmet Haberal. 43rd European Renal Association - European Dialysis and Transplant Association (ERA-EDTA) Congress: Glasgow-UK; 15/07/2006 - 17/07/2006.

6. Transjugular intrahepatic portosystemic shunt creation in Budd-Chiari syndrome: utility of  percutaneous ultrasound guided simultaneous puncture of the portal vein and the inferior vena cava. Fatih Boyvat,Cuneyt Aytekin, Umut Özyer, Levent Oguzkurt,Erkan Yıldırım,Mehmet Haberal. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2006: Rome-Italy; 09/09/2006 - 13/09/2006.

7. Ventricular septal velocities are equally affected by both ventricular functions: a tissue doppler study in comparison to cardiac magnetic resonance imaging. Leyla Elif Sade,Öykü Gulmez, Umut Özyer, Serdar Mermer, Muhteşem Ağıldere, Haldun Müderrisoğlu. 2nd Annual Congress on Update in Cardiology and Cardiovascular Surgery: Bodrum; 20/09/2006 - 24/09/2006.

8. Assesment of right ventricular systolic function by different echocardiographic methods: a comparison with cardiac magnetic resonance. Leyla Elif Sade, Öykü Gulmez, Umut Özyer, Serdar Mermer, Muhteşem Ağıldere, Haldun Müderrisoğlu. 2nd Annual Congress on Update in Cardiology and Cardiovascular Surgery: Bodrum; 20/09/2006 - 24/09/2006.

9. Right ventricular failure is associated with right ventricular dyssychrony independently of the QRS duration. Leyla Elif Sade,Oyku Gulmez, Umut Özyer, Muhtesem Ağıldere, Haldun Müderrisoğlu. Euroecho 10, 10th Annual Meeting of the European Association of Echocardiography: Prag-Czech Republic; 06/12/2006 - 09/12/2006.

10. Average segmental Tei index is a beter estimate of the right ventricular performance than the tricuspid annular Tei index: a comparison with cardiac magnetic resonance imaging. Leyla Elif Sade,Oyku Gulmez, Umut Özyer, Muhtesem Ağıldere, Haldun Müderrisoglu. Euroecho 10, 10th Annual Meeting of the European Association of Echocardiography: Prag-Czech Republic; 06/12/2006 - 09/12/2006.

11. Right ventricule systolic function is not the only determinant of the tricuspid annular velocity. A tissue Doppler study in comparison to cardiac magnetic resonance imaging. Leyla Elif Sade,Oyku Gulmez, Umut Özyer, Serdar Mermer,Muhtesem Agıldere,Haldun Muderrisoglu. Euroecho 10, 10th Annual Meeting of the European Association of Echocardiography: Prag-Czech Republic; 06/12/2006 - 09/12/2006.

12. Percutaneous internal-external biliary drainage in treating posttransplant anastomotic bile leaks. Cuneyt Aytekin,Fatih Boyvat,Ali Harman, Umut Özyer, Şinasi Sevmis, Mehmet Haberal. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2007: Athens-Greece; 08/09/2007 - 12/09/2007. 

13. Percutaneous therapy of biliary complications after pediatric liver transplantation. Cuneyt Aytekin,Fatih Boyvat, Ali Harman, Umut Özyer, Sinasi sevmis,Mehmet Haberal. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2008: Kopenhag-Denmark; 13/09/2008 - 17/09/2008. 

14. Treatment of arterial steal syndrome in liver transplant recipients. Fatih Boyvat, Umut Özyer, Ali Harman,Cuneyt Aytekin,Mehmet Haberal. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2008: Kopenhag-Denmark; 13/09/2008 - 17/09/2008. 

15. Simultaneous percutaneous multiple plastic stents for resistant biliary anastomotic strictures after liver transplantation: preliminary report. Fatih Boyvat,Hamdi Karakayali, Umut Özyer, Şinasi Sevmis, Ali Harman, Mehmet Haberal. 15th Annual Congress of the International- Liver-Transplantation-Society, ILTS 2009: New York-USA; 08/07/2009 - 11/07/2009.

16. Preoperative percutaneous direct injection of n-butyl cyanoacrylate and onyx in head and neck paragangliomas. Umut Özyer, Ali Harman,Erkan Yıldırım,Cuneyt Aytekin,Fatih Boyvat,Nur Altınors. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2009: Lisbon-Portugal; 19/09/2009 - 23/09/2009. 

17. Long term results of percutaneous angioplasty and stent placement of upper extremity central venous obstruction in hemodialysis patients. Umut Özyer, Erkan Yıldırım, Ali Harman, Feza Karakayalı, Cüneyt Aytekin, Fatih Boyvat. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2009: Lisbon-Portugal; 19/09/2009 - 23/09/2009.

18. Cutting balloon angioplasty and simultaneous percutaneous large profile multiple plastic stents for biliary anastomotic strictures after liver transplantation. Fatih Boyvat, Umut Özyer, Ali Harman,Cuneyt aytekin,Mehmet Haberal. European Congress of Radiology, ECR 2010: Vienna-Austuria; 04/03/2010 - 08/03/2010. 

19. Treatment of arterial steal syndrome in liver transplant recipients. Fatih Boyvat,Ali Harman, Umut Özyer, Cüneyt Aytekin, Mehmet Haberal. European Congress of Radiology, ECR 2010: Vienna-Austuria; 04/03/2010 - 08/03/2010. 

Reports presented as posters in scientific meetings such as international congresses, symposium, work shop

1. Sex assesment from scapular dimensions. C Pelin,I Duzar, U Özyer,R Zagyapan,M Agıldere.  4th Asian-Pacific International Congress of Anatomists: Kuşadası- Türkiye; 07/09/2005 - 10/09/2005. 

2. Early and late postoperative stent placement for hepatic artery thrombosis or stenosis after liver transplantation. Fatih Boyvat,Cüneyt Aytekin, Umut Özyer,Remzi Emiroğlu,Gülnaz Aslan,Mehmet Haberal. 9th Congress of the Asian Society of Transplantation, CAST: Karaçi-Pakistan; 23/11/2005 - 26/11/2005.

3. Regional pulsed wave tissue Doppler of the right ventricle for the evaluation of systolic function: validation against cardiac magnetic resonance imaging. LE Sade,O Gulmez, U Özyer, S Mermer,M Agildere,M Ulucam,H Muderrisoglu. World Congress of cardiology 2006: Barcelona-Spain; 02/09/2006 - 05/09/2006.

4. Long-term results of percutaneous therapy of ureteric complications after renal transplantation. Cuneyt Aytekin,Fatih Boyvat, Umut Özyer, Turan Colak, Mehmet Haberal. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2006: Rome-Italy; 09/09/2006 - 13/09/2006.

5. Simultaneous multiple percutaneous large-profile plastic stents for resistant biliary anastomotic strictures after liver transplant: preliminary report. F Boyvat,S Sevmis, U Özyer, A Harman, H Karakayalı, M Haberal. XXII International Congress of The Transplant Society: Sidney-Australia; 10/08/2008 - 14/08/2008.

6. Hepatic artery complications after liver transplant, managed with percutaneous graft-covered stents. F Boyvat, U Özyer,S Sevmıs,G Moray,C Aytekın,M Haberal. XXII International Congress of The Transplant Society: Sidney-Australia; 10/08/2008 - 14/08/2008. 

7. Treatment of arterial steal syndrome in liver transplant recipients. F Boyvat, U Özyer, S Sevmıs,A Harman,C Aytekın,M Haberal. XXII International Congress of The Transplant Society: Sidney-Australia; 10/08/2008 - 14/08/2008

8. Endovascular ligature of primary complicated av fistulas with amplatzer vascular plug. F Boyvat,A Harman,F Karakayalı, U Özyer, G Moray, M Haberal.  XXII International Congress of The Transplant Society: Sidney-Australia; 10/08/2008 - 14/08/2008.

9. Hepatic artery complications after liver transplant, managed with percutaneous graft covered stent placement.Fatih Boyvat, Umut Özyer, Ali Harman,Cuneyt Aytekin,Mehmet Haberal.  Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2008: Kopenhag-Denmark; 13/09/2008 - 17/09/2008.

10. Transhepatic dilation of anastomotic and nonanastomotic biliary strictures with cutting balloon in liver transplant recipients. Fatih Boyvat, Umut Özyer, Ali Harman,Erkan Yıldırım, Cüneyt Aytekin,Mehmet Haberal. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2008: Kopenhag-Denmark; 13/09/2008 - 17/09/2008. 

11. Right ventricular systolic function by tissue Doppler imaging with a multi-segmental approach in comparison with cardiac magnetic resonance. LE Sade,O Gulmez, U Özyer, E Özgul, M Ağıldere, H Muderrısoglu. Euroecho 12, 12th Annual Meeting of the European Association of Echocardiography 2008, Lyon-France; 10/12/2008 - 13/12/2008.

12. Reversible diffuse arterial spasm in a patient with primary oxalosis. UE Özyer, A Harman, OS Bolukbası, E Aslım, C Aytekın, F Boyvat. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2009: Lisbon-Portugal; 19/09/2009 - 23/09/2009.

13. Endovascular stenting of upper extremity central venous obstruction in hemodialysis patients: long term results of Wallstent and nitinol stent placements. UE Özyer, A Harman, B Gumus, F Karakayalı, C Aytekın, F Boyvat. Cardiovascular and Interventional Radiological Society of Europe, CIRSE 2009: Lisbon-Portugal; 19/09/2009 - 23/09/2009.

14. Endovascular stent placement for treating peripheral outflow lesions in hemodialysis patients with native arteriovenous fistula. C Aytekın, U Özyer, A Harman,F Karakayalı,F Boyvat. European Congress of Radiology, ECR 2010: Vienna-Austuria; 06/03/2010 - 10/03/2010. 

15. Percutaneous Treatment of Venous Outflow Obstruction after Liver Transplantation. F Boyvat,S Sevmıs, U Özyer, H Karakayalı,A Harman,M Haberal. 16th Annual Congress of the International-Liver-Transplantation-Society, ILTS 2010: Hong Kong; 16/06/2010 - 19/06/2010.

16. Is Carotid artery stent procedure an alternative to carotid endarderectomy with regional anesthesia using selecrtive shunt. AN Ecevit,HT Akay,E Aslim,A harman, U Özyer, S Ozcobanoglu,B Gultekin,A Sezgin,S Aslamaci.  29th Turkish Cardiology Congress of the Turkish-Society-of-Cardiology (TSC) with International Participation: Antalya; 26/10/2013 - 29/10/2013.

17. A Rare Cause of Flank Pain: Spontaneous Rupture of a Hepatic Hemangioma. Afsin Emre Kayıpmaz, Tufan Akın Giray, Umut Özyer, Tulin Yıldırım, Suleyman Serdar Tasci, Murat Muratoglu, Cemil Kavalcı 4th Eurasian Congress on Emergency Medicine: Antalya; 13/11/2014 - 16/11/2014.

18. Percutaneous ultrasound guided biliary interventions after pediatric liver transplantation using fine needle and 0.014 inch guide-wire. Fatih Boyvat, Ali Harman, Ebru Ayvazoğlu Soy, Umut Özyer, Mahir Kırnap, Gökhan Moray,Mehmet Haberal, TTS 2016: Hong Kong; 18/08/2016 - 23/08/2016.

19. Fluoroscopically Guided Retrograde Double-J Stent Removal. Cüneyt Aytekin,Ali Harman, Umut Özyer, Aydıncan Akdur, Fatih Boyvat, Mehmet Haberal, TTS 2018: Madrid-SPAIN; 30/06/2018 - 05/07/2018

20. Endovascular Management of Arterial Complications Following Transplantation. Umut Özyer, Ali Harman, Ebru Ayvazoğlu Soy, Cüneyt Aytekin, Fatih Boyvat, Mehmet Haberal, TTS 2018: Madrid-SPAIN; 30/06/2018 - 05/07/2018

21. Percutaneous Biopsy of Hepatocellular Cancer Using Coaxial Needle System and Track Cauterization to Prevent Bleeding and Seeding. Fatih Boyvat, Mehmet Haberal, Ali Harman, Aydincan Akdur, Umut Özyer, Haldun Selcuk, Gökhan Moray, TTS 2018: Madrid-SPAIN; 30/06/2018 - 05/07/2018 

Reports published as summary after presentation in scientific meetings such as national congresses, symposiums and workshops

1. İki olgu nedeniyle santral pontin ve ekstrapontin miyelinolizisin MRG bulguları. (MRI findings of central pontine and extrapontine myelinolysis due to two phenomena) H. Lakadamyalı, P. Şeber, H. Lakadamyalı, A. Yılmaz, Ö. Gebedek, U. Özyer, 24. Ulusal Radyoloji Kongresi, Ankara, Proceeding, Poster Proceeding PS-432, page E223 (Oct 2003).

2. Jejunal perforasyonun BT’de direk vizüalizasyonu: nadir gösterilebilen bir bulgu. Direct visualization of jejunal perforation in CT: a rarely indicated finding). İ. Kırbaş, E.U. Özyer, E. Yıldırım, K. Akın, M. Tekşam, E. Karadeli, 25. Ulusal Radyoloji Kongresi, Antalya, Proceeding, Poster Proceeding P-126, page 148 (Oct 2004).

3. Az differansiye akciğer yassı hücreli tümörün atipik tiroid metastazı. (Poorly differentiated lung squamous cell tumor with an atypical thyroid metastasis). E.U. Özyer, B. Hasdoğan, M. Tekşam, A. Harman, A. Fırat, M. Coşkun, 25. Ulusal Radyoloji Kongresi, Antalya, Proceeding, Poster Proceeding P-331, page 206 (Oct 2004).

4. Kokain kullanımına bağlı hemorajik infarktlar. (Hemorrhagic infarcts secondary to cocaine use). E.U. Özyer, M. Tekşam, İ. Kırbaş, C. Ertürk, B. Hasdoğan, A. Harman, 25. Ulusal Radyoloji Kongresi, Antalya, Proceeding, Poster Proceeding P-422, page 232 (October 2004).

5. Preoperatif dönemde donörde saptanan ateroskleroz kronik allograft nefropatisi gelişiminde etkili midir? (Is preoperatively atherosclerosis in donors effective in development of chronic alloograft nephropathy?). Akman B, Özdemir B, Özyer E, Akgül A, Bilgiç A, Boyvat F, Arat Z, Özdemir F, Haberal M, Diyaliz, Transplantasyon ve Yanık Kongresi, Ankara, Proceeding, Sözlü Sunum 31, page 38 (June 2005).

6. Böbrek verici anjiyografilerinde renovasküler hastalık sıklığı. (Renovascular disease frequency in kidney donor angiographies). Akman B, Bilgiç A, Akgül A, Özyer E, Aytekin C, Özdemir F, Haberal M, Diyaliz, Transplantasyon ve Yanık Kongresi (Transplantation and Burn Congress), Ankara, Proceeding, Oral Proceeding 13, page 25 (Haziran 2005).

7. Akut enfarktın erken dönem saptanmasında perfüzyon beyin bilgisayarlı tomografi. (Perfusion brain tomography in early diagnosis of acute infarct). M. Tekşam, D. Oğuz, İ. Kırbaş, B. Çakır, U. Özyer, E. Karadeli, 26th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-096, page E83 (October 2005).

8. Bir santimetre altındaki tiroid nodüllerinde ultrasonografi bulgularına göre ince iğne aspirasyon biyopsi sonuçlarının karşılaştırılması. Comparison of fine needle aspiration biopsy results according to US findings for thyroid nodules smaller than one centimeter).  R. Butros, F. Boyvat, B. Bilezikçi, U. Özyer, N.D. Güvener, C. Aytekin, B. Demirhan, 26th National Radiology Congress, Antalya, Proceeding, Poster Proceeding P-279, page E175 (October 2005).

9. Böbrek nakli sonrası gelişen üreteral kaçakların tedavisinde perkütan girişimsel yöntemler. (Percutaneous interventional methods in treatment of ureteral leaks that develop after kidney transplantation). Alper Bozkurt, Cüneyt Aytekin, Fatih Boyvat, Umut Özyer, Ali Harman, Mehmet Haberal, 27th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-059, page 83 (October 2006).

10. Böbrek nakli sonrası gelişen üreter darlık ve tıkanıklıklarının perkütan tedavisinde uzun dönem sonuçlar. Long term consequences of the percutaneous treatment of ureteral stenosis and occlusions after kidney transplantation). Alper Bozkurt, Cüneyt Aytekin, Fatih Boyvat, Umut Özyer, Esra Özgül, Mehmet Haberal, 27th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-060, page 84 (October 2006).

11. Karaciğer transplantasyonu sonrasında, erken dönem hepatik arter komplikasyonlarında graft kaplı stent. (Graft-sheated stent in early hepatic artery complications after liver transplantation). Dilek Oğuz, Fatih Boyvat, Cüneyt Aytekin, Umut Özyer, Ali Harman, Şinasi Sevmiş, Mehmet Haberal, 27th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-071, page88 (Ekim 2006).

12. Pediatrik hastalarda karaciğer nakli sonrası gelişen safra yolu komplikasyonlarının perkütan girişimsel yöntemlerle tedavisi. (Treatment of bile duct complications with percutaneous interventional methods in pediatric patients after liver transplantation). Ali Harman, Cüneyt Aytekin, Fatih Boyvat, Umut Özyer, Şinasi Sevmiş, Mehmet Haberal, 27th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-079, page 92 (October 2006).

13. Anatomik pozisyonu değişmiş periton diyaliz kateterlerinin uygun yerine yerleştirilmesinde yeni bir teknik. (A new technique in appropriate placement of peritoneal dialysis catheters with altered anatomical position). Barış Hasdoğan, Umut Özyer, Fatih Boyvat, Ali Harman, Cüneyt Aytekin, 27th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-088, page 95 (October 2006).

14. Budd-Chiari sendromunda transjugüler intrahepatik portosistemik şant oluşturulması: portal ven ve inferior vena kavanın perkütan, ultrasonografi eşliğinde, eş zamanlı ponksiyonunun faydası. (Transjugular intrahepatic postosystemic shunt development in Budd-Chiari symdrome: percutaneous US-guided concomitant puncture of portal vein and inferior vena cava). Barış Hasdoğan, Fatih Boyvat, Umut Özyer, Ali Harman, Erkan Yıldırım, Cüneyt Aytekin, 27th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-089, page 96 (October 2006).

15. Karaciğer nakli sonrası hepatik arter stenozu yada trombozu olan pediyatrik hastalara stent yerleştirilmesi. (Stent placement to pediatric patients with hepatic artery stenosis or thrombosis after liver transplantation). Barış Hasdoğan, Fatih Boyvat, Cüneyt Aytekin, Umut Özyer, Hamdi Karakayalı, Mehmet Haberal, 27th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-090, page 96 (October 2006).

16. Konjenital intrahepatik arteriyoportal fistülü olan asemptomatik pediyatrik vakada başarılı koil embolizasyon. (Successful coil embolization in asymptomatic pediatric phenomenon with congenital intrahepatic arterioportal fistula).  Barış Hasdoğan, İsmail Kırbaş, Umut Özyer, Nihal Uslu Tutar, Cüneyt Aytekin, Mehmet Coşkun, Emin Alp Niron, 27th National Radiology Congress, Antalya, Proceeding, Poster Proceeding PP-365, page 269 (Oct 2006).

17. Non-spinal osteoid osteomalarda BT kılavuzluğunda perkütan RF ablasyon tedavisi. (CT-guided percutaneous RF ablation treatment in non-spinal osteoid osteomas). Umut Özyer, Fatih Boyvat, Cüneyt Aytekin, Mahir Yıldırım, Ali Harman, 27th National Radiology Congress, Antalya, Proceeding, Poster Proceeding PP-333, page 256 (Oct 2006).

18. Sol ventrikül fonksiyon analizinde 2D ekokardiyografi ile kardiyak FLASH 2D Sine-MRG incelemesinin karşılaştırılması. (Comparison of 2D echocardiography and cardiac FLASH 2D Cine-MRI studies for analysis of left ventricular function). Umut Özyer, Esra Özgül, Leyla Elif Sade, Ahmet Muhteşem Ağıldere, Haldun Müderrisoğlu, Emin Alp Niron, 27th National Radiology Congress, Antalya, Proceeding, Poster Proceeding PP-413, page 285 (Oct 2006).

19. İnterventriküler etkileşim: sağ ventrikül mekaniğine sol ventrikülün etkisi. (Interventricular interaction: effect of left ventricle to right ventricle mechanics). Sade Leyla Elif, Gülmez Öykü, Özyer Umut, Mermer Serdar, Ağıldere Muhteşem, Müderrisoğlu Haldun, 22nd National Cardiology Congress, Antalya, Turkish Cardiology Association Archieves Turkish Cardiology Association Archieves - Proceeding, volume 34(1), Poster Proceeding P-011, page28 (Oct 2006). 

20. Sağ ventrikül miyokard performans indeksi: Konvansiyonel Doppler ile mi doku Doppler ile mi hesaplanmalıdır? Kardiyak manyetik rezonans ile karşılaştırmalı çalışma. (Right ventricle myocardial performance index: should it be calculated with Conventional Doppler or tissue Doppler? Comparative study with cardiac magnetic resonance). Sade Leyla Elif, Gülmez Öykü, Özyer Umut, Mermer Serdar, Ağıldere Muhteşem, Müderrisoğlu Haldun, 22nd National Cardiology Congress, Antalya, Turkish Cardiology Association Archieves Proceeding, cilt 34(1), Poster Proceeding P-115, page54 (Oct 2006). 

21. Sağ ventrikül sistolik işlevini değerlendirmede bölgesel duvar hareketlerinin doku Doppler ile değerlendirilmesi: Kardiyak manyetik rezonans ile karşılaştırmalı çalışma. (Evaluation of regional wall motions in right ventricular systolic assessments by using tissue Doppler). Sade Leyla Elif, Gülmez Öykü, Özyer Umut, Mermer Serdar, Ağıldere Muhteşem, Müderrisoğlu Haldun, 22nd National Cardiology Congress, Antalya, Turkish Cardiology Association Archieves Proceeding, volume 34(1), Oral Proceeding SB-194, page82 (Oct 2006). 

22. Sağ ventrikül senkronizasyon bozukluğu sağ ventrikül sistolik işlevini bozmaktadır. (Right ventricle synchoronization disorder impairs right ventricle systolic function).  Sade Leyla Elif, Gülmez Öykü, Özyer Umut, Mermer Serdar, Ağıldere Muhteşem, Müderrisoğlu Haldun, 22nd National Cardiology Congress, Antalya, Turkish Cardiology Association Archieves Proceeding, cilt 34(1), Poster Proceeding P-213, page106 (Oct 2006).

23. Aterosklerotik subklavyan arter darlığında stentleme: Kısa, orta ve uzun dönem sonuçlar. (Atherosclerotic subclavian arterial stenosis stenting: short, mid- and long-term results). E Yıldırım, İ Kırbas, A Harman, D Oğuz, U Özyer, C Aytekin, F Boyvat, 28. Ulusal Radyoloji Kongresi, Antalya, Proceeding, Poster Proceeding P-319, pageE220 (Oct 2007).

24. Bilgisayarlı tomografi kılavuzluğunda “co-aksiyel” teknik ile yapılan “tru-cut” akciğer biyopsisi: Komplikasyon riskini etkileyen faktörler. (“Tru-cut” lung biopsy with “co-axial” technique under CT guidance: Factors effecting complication risk). E Yıldırım, İ Kırbas, A Harman, HG Töre, U Özyer, C Aytekin, F Boyvat, 28. Ulusal Radyoloji Kongresi, Antalya, Proceeding, Poster Proceeding P-320, pageE220 (Oct 2007).

25. Komplike hemodializ fistüllerinin Amplatzer vasküler tıkaç ile endovasküler oklüzyonu. (Endovascular occlusion of complicated hemodialysis fistula with Amplatzer vascular plug). Umut Özyer,  Fatih Boyvat,  Ali Harman,  Utku Mahir Yıldırım, Şinasi Sevmiş, 29. Ulusal Radyoloji Kongresi, Antalya, Proceeding, Oral Proceeding SB-72, page E101 (Oct 2008).

26. Karaciğer nakli sonrası dirençli biliyer anastomotik darlıklarda perkütanöz eş zamanlı multipl plastik stentleme. (Percutaneous concomitant multiple plastic stenting in resistant biliary anastomotic stenoses after liver transplantation). Ali Harman, Fatih Boyvat, Umut Özyer, Cüneyt Aytekin, Mehmet Haberal, 29.Ulusal Radyoloji Kongresi, Antalya, Proceeding, Oral Proceeding SB-129, page E129 (Oct 2008).

27. Karaciğer nakli sonrası hepatik arter komplikasyonlarında endovasküler tedavi. (Endovascular treatment in hepatic artery complications after liver transplantation). Utku Mahir Yıldırım, Fatih Boyvat, Ali Harman, Umut Özyer, Mehmet Haberal, 29.Ulusal Radyoloji Kongresi, Antalya, Proceeding, Oral Proceeding SB-71, page E101 (Oct 2008).

28. Hemodiyaliz yapılan hastalarda üst ekstremite santral venöz obstrüksiyonlarda anjiyoplasti ve stent greft tedavisinin uzun dönem sonuçları. (Long-term consequences of angioplasty and stent-graft treatments in upper extremity central venous obstructions of hemodialysis patients). U Özyer, F Boyvat, H Akay, E Aslım, 14th National Vascular Surgery Congress , Bodrum, Proceeding, Oral Proceeding SB-024, page61 (Mayıs 2009).

29. Torakal ve abdomianl aort patolojilerinde endovasküler tedavi: orta dönem sonuçlar. (Endovascular treatment in thoracic and abdominal aorta procedures: mid-term results). E Aslım, H Akay, U Özyer, A Harman, S Özçobanoğlu, A Ecevit, F Boyvat, 14th National Vascular Surgery Congress , Bodrum, Proceeding, Oral Proceeding SB-032, page 63 (May 2009).

30. Kateterizasyon sonrası gelişen iatrojenik femoral arter psödoanevrizma tedavisi deneyimlerimiz. (Our experiences regarding post-catheterization iatrogenic femoral artery pseudoaneurysm treatment). H Akay, E Aslım, U Özyer, A Harman, S Özçobanoğlu A Ecevit, M Çelik, O Korun, 14th National Vascular Surgery Congress, Bodrum, Proceeding, Discussion poster TP-028, page 74 (May 2009).

31. Akut aort diseksiyonunda hibrid tedavi: asenden ve arkus aorta replasmanını takiben endovasküler aortik stent yerleştirilmesi: olgu sunumu. (Hydbrid treatment in acute aortic dissection: endovascular aortic stent placement after ascending and arcus aorta replacement – a case report). H Akay, E Aslım, U Özyer, S Özkan, A Sezgin, 14th National Vascular Surgery Congress, Bodrum, Proceeding, Discussion poster TP-033, page76 (May 2009).

32. Karotis cisim tümörlerinin operatif tedavisinde cerrahi ve girişimsel radyoloji kombinasyonu. (Surgical and interventional radiology combination in operative treatments of carotid body tumors). E Aslım, H Akay, A Harman, U Özyer, S Özçobanoğlu, A Ecevit, 14th National Vascular Surgery Congress , Bodrum, Proceeding, Discussion poster TP-102, page96 (May 2009).

33. Akut masif pulmoner embolide tedavi seçenekleri ve klinik tecrübemiz. (Treatment options and clinical experiences on acute massive pulmonary embolus). H Akay, E Aslım, A Harman, U Özyer, Ç Günaydın, İ Akkaya, B Sarıtaş, A Sezgin, 14th National Vascular Surgery Congress , Bodrum, Proceeding, Poster Proceeding P-066, page120 (May 2009).

34. Postkateterizasyon arteriyel psödoanevrizma tedavisinde US eşliğinde perkütan glue enjeksiyonu. (US-guided percutaneous glue injection in post-catheterization arterial pseudo-aneurysm treatment). Bahar Güner, Ali Harman, Umut Özyer, Cüneyt Aytekin, Fatih Boyvat, 30th National Radiology Congress, Antalya, Proceeding, Selected proceeding SÇS-09, page E68 (Nov 2009).

35. Doppler ultrasonography in arterial steal syndrome after liver tramsplantation. Hülya Aslan, Nihal Uslu, Hüseyin Gürkan Töre, Umut Özyer, Mehmet Haberal, 30th National Radiology Congress , Antalya, Proceeding, Oral Proceeding SB-042, page E92 (Nov 2009).

36. Baş-boyun paragangliomalarına preoperatif perkütanöz n-butyl cyanoacrylate ve onyx enjeksiyonu (Preoperative percutaneous N-butyl cyanoacrylate and onyx injection to head-neck paragangliomas).  Bahar Güner, Umut Özyer, Ali Harman, Cüneyt Aytekin, Erdal Aslım, Fatih Boyvat, 30th National Radiology Congress, Antalya, Proceeding, Oral Proceeding SB-084, page E113 (Nov 2009).

37. Renal transplantasyon sonrasi üreteral obstrüksiyon ve kaçak tedavisinde perkütan yöntemler. Bahar Güner, Umut Özyer, Ali Harman, Cüneyt Aytekin, Fatih Boyvat, Hamdi Karakayalı, Mehmet Haberal, 31st National Radiology Congress , Antalya, Oral Proceeding SB-065 (Nov 2010).

38. Renal transplantasyon sonrasi arteriyel komplikasyonlarin tedavisinde endovasküler yöntemler. (Endovascular methods in treatment of arterial complications after renal transplantation). Bahar Güner, Ali Harman, Umut Özyer, Cüneyt Aytekin, Fatih Boyvat, Hamdi Karakayalı, Mehmet Haberal, 31st National Radiology Congress, Antalya, e-poster P-293  (Nov 2010).

39. Ultrasonografi (US) kılavuzluğunda ince iğne aspirasyon biyopsisi (İİAB) ile benign sitolojik tanı almış tiroid nodüllerinde tekrar İİAB ile takibin US özellikleri ile birlikte değerlendirilmesi. (Follow-up evaluation of thyroid nodules diagnosed to be benign with US-guided FNA biopsy with repeat FNA biopsy and US characteristics). Müge Afşar Yıldırım, Eşref Umut Özyer, Fatih Boyvat, Cüneyt Aytekin, Ali Harman, banu Bilezikçi. 32nd National Radiology Congress, Antalya, Oral Proceeding, 28/10/2011-02/11/2011.

40. Akut kolesistitli hastalarda ultrason eşliğinde perkütan kolesistostomi tedavisi:10 yıllık tek merkez sonuçları. (Percutaneous cholecystostomy treatment in acute cholecystitis patients under US guidance: 10 year single center results). Adnan Özdemir, Müge Afşar Yıldırım, Umut Özyer, Serdar Arslan, Ali harman, Cüneyt Aytekin, Aydıncan Akdur, Fatih Boyvat. 34th National Radiology Congress, Antalya Oral Proceeding 06/11/2013-10/11/2013.  

41. Spontan aktif intramüsküler kanamalarda n-bütil 2-siyanoakrilat ile selektif embolizasyonu. (Selective embolization with N-butyl 2-cyanoacrilate in spontaneous active intramuscular bleedings)  Umut Özyer. 37th National Radiology Congress, Antalya 01/11/2016-05/11/2016.

BOOK SECTİONS

Author in Foreign Language

• Umut Özyer. Interventional Radiology in the Management of Urologic Complications After Renal Transplant In: Diagnostic and Interventional Radiology in Liver & Kidney Transplantation. Ankara. 2020. Editör: Fatih Boyvat, Mehmet Haberal. Page: 242-254

Turkish Book Sections 

• Umut Özyer. Jinekoloji ve Jinekolojik Onkoloji Girişimsel Radyolojide Ultrasonografinin Yeri. In: Obstetrik ve jinekolojide ultrasonografi. Ankara. 2015. Editor: Prof. Dr. Nedim Çiçek. Page:49-100. (Ultrasonography in Gynecology and Gynecologic Oncology Interventional Radiology - In: Ultrasonography in Obstetrics and Gynecology).

Book section translations

•  - Umut Özyer. Obstetrik Ultrason İncelemesi. In: Peter W Callen/Obstetrik ve jinekolojide ultrasonografi. Çeviri editörleri: M Nedim Çiçek, Perran Möröy. Palme yayıncılık2009. Sayfa:3-25.  (Obstetrics Ultrasound Study). 

MANAGED SPECIALTY THESES

1. Müge Afşar Yıldırım, Cerrahi Riski Yüksek Hastalarda Perkütan Kolesistostomi ile Tedavinin Etkinliğinin Değerlendirilmesi. Tez danışmanı: Doç. Dr. E. Umut Özyer. Başkent Üniversitesi Tıp Fakültesi Radyodiagnostik A.D, Ankara-2012. (Evaluation of Treatment Efficacy in Percutaneous Cholecystostomy Patients with High Surgical Risk).  

2. Şehnaz Tezcan, Akut Semptomatik Femoropopliteal Bypass Greft Obstrüksiyonlarında Endovasküler Tedavinin Etkinliği.  Tez danışmanı: Doç. Dr. E. Umut Özyer. Başkent Üniversitesi Tıp Fakültesi Radyodiagnostik A.D, Ankara-2012. (Efficacy of Endovascular Treatment in Acute Symptomatic Femoropopliteal Bypass Graft Obstructions). 

3. Yunus Yılmazsoy, Tromboze Arteriovenöz Fistüllerde Endovasküler Tedavinin Orta ve Uzun Dönem Etkinliği. Tez danışmanı: Doç. Dr. E. Umut Özyer. Başkent Üniversitesi Tıp Fakültesi Radyodiagnostik A.D, Ankara-2013. (Mid-term and Long-term Efficacy of Endovascular Treatment in Thrombozed Arteriovenous Fistula).

4. Alev Dolu, Ultrasonografi (US) Kılavuzluğunda İnce İğne Aspirasyon Biyopsisi (İİAB) ile Benign Sitolojik Tanı Almış Tiroid Nodüllerinde Tekrar İİAB ile Takibin US Özellikleri ile Birlikte Değerlendirilmesi. (Follow-up evaluation of thyroid nodules diagnosed to be benign with US-guided FNA biopsy with repeat FNA biopsy and US characteristics) Tez danışmanı: Doç. Dr. E. Umut Özyer. Başkent Üniversitesi Tıp Fakültesi Radyodiagnostik A.D, Ankara-2015 

PEER-REVIEW AND CONSULTANT COUNCIL MEMBERSHIP 

1. Cardiovascular and Interventional Radiology (2016-cont.)

2. Heart Asia (2017-cont.)

ADMINISTRATIVE POSITIONS

• Turkish Interventional Radiology Association Board of Directors Member and Head of Education Brand Commission, 2016 - 2019 

• Turkish Interventional Radiology Association Board of Directors Member and General Secretary, 2019 – cont.

OTHER SCIENTIFIC ACTIVITIES

Committee membership in national symposium, congress, work shop arrangements.

1. Endovascular Treatment and Application Course in Acute Stroke, 10/10/2015-11/10/2015, Kurs, Ulusal, Gaziantep

2. Image-guided Tumor Ablation, 21/11/2015-21/11/2015, Symposium, Ulusal, Konya

3. Basic Interventional Radiology Course, 03/12/2015-06/12/2015, Course, Ulusal, Antalya.

4. Advanced Interventional Radiology Course-2, 18/01/2016-24/01/2016, Course, Ulusal, Antalya.

5. Acute Stroke: Endovascular Treatment Application Course-2, 09/04/2016-10/04/2016, Course, Ulusal, Ankara.

6. Basic Interventional Radiology Course-4, 04/11/2016-06/11/2016, Course, Ulusal, Antalya.

7. Advanced Interventional Radiology Course-3, 09/12/2016-15/12/2016, Coarse, Ulusal, Antalya.

8. Endovascular Treatment and Application Course-3 in Acute Stroke, 07/01/2017-08/01/2017, Course, Ulusal, Ankara.

9. Basic Interventional Radiology Course-5, 05/11/2017-05/11/2017, Course, Ulusal, Antalya.

10. Advanced Interventional Radiology Course-4 (Clinical Evaluation and Nonvascular Interventions), 15/12/2017-19/12/2017, Course, Ulusal, Antalya.

11. TGRT Alive Courses: Infrapatellar and Femoropopliteal Revascularization, 20/01/2018-20/01/2018, Coarse, Ulusal, İzmir and Ankara

12. Endovascular Treatment and Application Course-4 in Acute Stroke, 21/04/2018-22/04/2018, Course, Ulusal, Ankara.

13. Basic Interventional Radiology Course-6, 09/112018-11/11/2018, Course, Ulusal, Antalya.

14. Advanced Interventional Radiology Course-4 (Vascular Interventions), 04/01/2019-08/01/2019, Coarse, Ulusal, Antalya.

CHAIRMANSHIP IN INTERNATIONAL SCIENTIFIC MEETINGS

• Speciaty Embolization #2: Sphlanchnic & Cervico-Thoracic: Middle East Endovascular Therapy (MEET) Symposia, 09/01/2018-12/01/2018, Sempozyum, Yurtdışı, Uluslararası, Cairo, Egypt

INVITED SPEAKER IN INTERNATIONAL SCIENTIFIC MEETINGS

- Central Venous Recanalization in Dialysis Access Patients, Middle East Endovascular Therapy (MEET) Symposia, 09/01/2018-12/01/2018, Sempozyum, Yurtdışı, Uluslararası, Cairo, Egypt

- Embolization of Carotid Paragangliomas, Middle East Endovascular Therapy (MEET) Symposia, 09/01/2018-12/01/2018, Sempozyum, Yurtdışı, Uluslararası, Cairo, Egypt

- TIPS shunt placement: basics, techniques and tools, TSIR and EVIS 2019 International Joint Meeting, 19-23/04/2019, Sempozyum, Uluslararası, İstanbul

- How to deal with complicated graft occlusions, TSIR and EVIS 2020 International Joint Meeting, 06-10/03/2020, sempozyum, International, Antalya

INVITED SPEAKER IN NATIONAL SCIENTIFIC MEETINGS

1. “Extravascular Interventional Radiologic Procedures in Thorax”, 29th National Radiology Congress, Antalya, November 4, 2008.

2. “Baloon Angioplasty / Stent Technique and Indications”, Turkish Radiology Association Ankara Branch 2009-2010 Education Meetings, Ankara, December 12, 2009. 

3. Treatment of central vein stenosis and occlusions”, Interventional radiology Fifth Annual Meeting, Capadocia, May 8, 2010.

4. “Transthoracic Biopsy Procedures and Techniques”, Turkish Radiology Association Ankara Branch 2010-2011 Education Meetings, Ankara, January 22, 2011

5. “Transthoracic Draining Procedures”, Turkish Radiology Association Ankara Branch 2010-2011 Education Meetings, Ankara, January 22, 2011

6.  “RF Ablation In Other Organ Tumors”, Turkish Radiology Association Ankara Şubesi 2011-2012 Education Meetings, January 7, 2012. 

7. “Endovascular Treatment in Peripheric Vessels”, Turkish Radiology Association Ankara Şubesi 2012-2013 Education Meetings, 09.02.13.

8. “Oncologic Interventional Radiology: HCC. Imahing and Patient Selection”, Eighth Interventional Radiology Meeting, Antalya, March 29, 2013.

9. “Role of Interventional Radiology in Metastatic Liver Tumors”, Ankara Surgical Association, Ankara, November 23, 2013 

10. “HIFU”, Turkish Radiology Association Ankara Branch 2013-2014 Education Meetings, Interventional Oncology Symposium, Ankara, May 31, 2014.

11. “Percutaneous Ablation in Kidney Masses”, Turkish Radiology Association Ankara Branch 2013-2014 Education Meetings, Interventional Oncology Symposium, Ankara, May 31, 2014.

12. “Interventional radiology in Liver and Kidney Transplantation”, 40th National Radiology Congress, Antalya, 05-10/11/2019.