Doç. Dr. Ozan Cem GÜLER

Radyasyon Onkolojisi

Doç. Dr. Ozan Cem GÜLER

Radyasyon Onkolojisi

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Eğitim


     
  • 2001 – 2007      Lisans                          Gülhane Askeri Tıp Akademisi (GATA) - ANKARA
  • 2011 -  2015      Araş. Görev.                 Başkent Üniversitesi Radyasyon Onkolojisi – ADANA
  • 2015 – 2017      Uzm. Dr.                       KTÜ Radyasyon Onkolojisi - Trabzon
     

Bilimsel Yayınlar


     
  • A1. Guler OC, Yuce Sari S, Duru Birgi S, Bahadir M, Yildiz F, Onal C.: Definitive chemoradiotherapy in eldery cervical cancer patients: A multi-instutional analysis. Int J Gynecol Cancer. 2017 Jun 10. doi: 10.1097/IGC.0000000000001029.
  • A2. Guler OC, Engels B, Onal C, Everaert H, Van den Begin R, Gevaert G, de Ridder M.: The feasibility of prostate-specific membrane antigen positron emission tomography(PSMA PET/CT)-guided radiotherapy in oligometastatic prostate cancer patients. Clin Transl Oncol. 2017 Aug 9. doi: 10.1007/s12094-017-1736-9. [Epub ahead of print].
  • A3.         Guler OC, Onal C, Acibuci I.: Effects of bladder distension on dose distribution of vaginal vault brachytherapy in patients with endometrial cancer. J Contemp Brachytherapy. 2015 Jan;6(4):371-6. doi: 10.5114/jcb.2014.47868. Epub 2014 Dec 31.
  • A4. Onal C, Guler OC, Reyhan M, Yapar AF.: Prognostic value of 18F-fluorodeoxyglucose uptake in pelvic lymph nodes in patients wıth cervical cancer treated with definitive chemoradiotherapy. Gynecol Oncol. 2015 Apr;137(1):40-6. doi: 10.1016/j.ygyno.2015.01.542. Epub 2015 Jan 29.
  • A5. Yuce Sari S, Guler OC, Gultekin M, Onal H.C., Yildiz F.: Adjuvant Small Pelvic Radiotherapy in Patients with Cervical Cancer Having Intermediate Risk Factors Only - Is It Sufficient. Oncol Res Treat. 2017 Aug 21;40(9):523-527. doi: 10.1159/000476037.
  • A6. Onal C, Guler OC, Dolek Y.: The impact of air pockets around the vaginal cylinder on vaginal vault brachytherapy. Br J Radiol. 2015 Mar;88(1047):20140694. doi: 10.1259/bjr.20140694. Epub 2015 Jan 6.
  • A7. Onal C, Guler OC, Dolek Y, Erbay G.: Uterine perforation during three-dimensional image-guided brachytherapy in cervical cancer patients: Baskent University experience. Int J Gynecol Cancer. 2014 Feb;24(2):346-51.
  • A8. Onal C, Guler OC, Akkus Yildirim B.: Prognostic use of pretreatment hematologic parameters in patients receiving definitive chemoradiotherapy for cervical cancer. Int J Gynecol Cancer. 2016 Jul;26(6):1169-75. doi: 10.1097/IGC.0000000000000741.
  • A9. Kandaz M, Guler OC, Yoney A: The effect of chemoradiotherapy at gastric cancer on pancreatic enzymes and pancreas volume. International Journal of Hematology and Oncology 2017, 27(1), 29-36
  • A10. Parlak C, Mertsoylu H, Güler OC, Onal C, Topkan E.: Definitive chemoradiation therapy following surgical resection or radiosurgery plus whole-brain radiation therapy in non-small cell lung cancer patients with synchronous solitary brain metastasis: a curative approach. Int J Radiat Oncol Biol Phys. 2014 Mar 15;88(4):885-91. doi: 10.1016/j.ijrobp.2013.12.017. Epub 2014 Feb 1.
  • A11. Onal C, Cengiz M, Guler OC, Dolek Y, Ozkok S.: The role of delineation education programs for improving interobserver variability in target volume delineation in gastric cancer. Br J Radiol. Br J Radiol. 2017 May; 90(1073):20160826. doi: 10.1259/bjr.20160826. Epub 2017 Mar 24.
  • A12. Topkan E, Yildirim B.A, Guler OC, ParlakC, PehlivanB, SelekU: Safety and palliative efficacy of single-dose 8-Gy reirradiation for painful local failure in patients with stage IV non-small cell lung cancer previously treated with radical chemoradiation therapy.Int J Radiat Biol. 2015;91(4):774-80.
  • A13. Onal C, Torun N, Guler OC, Yildirim BA.: Prognostic value of metabolic response measured by 18-FDG Positron emission tomography in oesophageal cancer patıents treated with definitive chemoradiotherapy. Nucl Med Commun. 2016 Dec;37(12):1282-1289.
  • A14. Onal C, Erbay G, Guler OC: Treatment response evaluation using the mean apparent diffusion coefficient in cervical cancer patients treated with definitive chemoradiotherapy. J Magn Reson Imaging. 2016 Feb 27. doi: 10.1002/jmri.25215. [Epub ahead of print]
  • A15. Yildirim BA, Ozdemir Y, Guler OC, Topkan E: High Prognostic Nutritional Index Relates with Enhanced Survival in Rectal Cancer Patients Treated with Neoadjuvant Chemoradiotherapy. Wulfenia Journal.
  • A16. Erbay G, Onal C, Guler OC, Karadeli E, Koc Z.: Correlation of clinical risk factors with Diffusion-Weighted Magnetic Resonance Images in prostate cancer patients treated with definitive radiotherapy. International Journal of Hematology and Oncology 2015, Vol 25, Num 2 Page(s):88-97.
  • A17. Onal C, Reyhan M, Guler OC, Yapar AF. : Treatment outcomes of patients with cervical cancer with complete metabolic responses after definitive chemoradiotherapy. Eur J Nucl Med Mol Imaging. 2014 Jul;41(7):1336-42. doi: 10.1007/s00259-014-2719-5. Epub 2014 Feb 22.
  • A18. Onal C, Akkus Yildirim B, Guler OC.: Outcomes of aggressive treatment in esophageal cancer patients with synchronous solitary brain metastasis. Molecular and Clinical Oncology 7: 107-112, 2017.
  • A19. Topkan E, Parlak C, Topuk S, Guler OC, Selek U.: Outcomes of aggressive concurrent radiochemotherapy in highly selected septuagenarians with stage IIIB non-small cell lung carcinoma: Retrospective analysis of 89 patients. Lung Cancer. 2013 May 29. S0169-5002(13)00214-6
  • A20. Onal C, Reyhan M, Parlak C, Guler OC, Oymak E.: Prognostic value of pretreatment FDG uptake in cervical cancer patients treated with definitive chemoradiotherapy. Int J Gynecol Cancer. 2013 Jul;23(6):1104-10
  • A21. Onal C, Sonmez S, Erbay G, Guler OC, Arslan G.: Simultaneous integrated boost to intraprostatic lesions using different energy levels of intensity-modulated radiotherapy and volumetric-arc therapy. Br J Radiol. 2014 Feb;87(1034):20130617. doi: 10.1259/bjr.20130617. Epub 2013 Dec 6.
  • A22. Erbay G, Onal C, Karadeli E, Guler OC, Arica S, Koc Z.: Predicting tumor recurrence in patients with cervical carcinoma treated with definitive chemoradiotherapy: Value of quantitative histogram analysis on diffusion-weighted MR images. Acta Radiol. 2016 Jul 20. pii: 0284185116656492. [Epub ahead of print]
  • A23. Yildirim BA, Onal C, Torun N, Ozdemir Y, Guler OC: The correlation between fdg-pet parameters and hematologic parameters in patients with esophageal squamous-cell carcinoma treated with definitive chemoradiotherapy. Disease Esophagus
  • A24. Kandaz M, Guler OC, Yazar U, Ucuncu SY, Yoney A: Impact of Peritumoral Edema on Overall Survival in Glioblastoma Multiforme. Turkish Journal of Oncology. 2016;31 (3):83-88
  • A25. Kandaz M, Guler OC, Memiş Y, Bahat Z, Canyılmaz E, Yoney A.: Evaluation of prognostic factors and survival results in pediatric hodgkin ‘s lymphoma – single center experience from eastern black sea region of turkey. J Hematol Blood Disord 2017: 3 (1):101
  • A26. Guler OC, Onal C, Erbay G, Bal N.: Prostate mucinous carcinoma treated with definitive radiotherapy and hormonotherapy: Case report and review of the literature. Clin Genitourin Cancer. 2013 Nov 12. pii: S1558-7673(13)00289-9. doi: 10.1016/j.clgc.2013.11.018.
  • A27. Guler OC, Onal C, Arslan G.: Graves' ophthalmopathy treated with protracted hypofractionated low-dose adaptive radiotherapy: case report and review of the literature. Wien Klin Wochenschr. 2015 Oct 14. [Epub ahead of print]
  • A28. Guler OC, Bal N, Onal C.: Metachronous Prostate Metastasis of Renal Cell Carcinoma: Case Report and Review of the Literature. Clin Genitourin Cancer. 2016 Apr;14(2):e211-3
  • A29. Topkan E, Guler OC, Bal N, Ozdemir Y: Adjuvant radiotherapy in management of trichilemmal carcinoma of left nasal alae with positive surgical margins: A case report Case Reports in Clinical Pathology. Doi: 10.5430/crcp.v3n4p57
  • A30. Kandaz M, Karaman E, Guler OC, Mungan S, Yoney A. : Endometrial Adenosarkoma: Case Report. Annals of Clinical Case Reports – Oncology: 2016,1;1170. 
     

Ödüller ve Belgeler


     

           F1. 2013 En İyi Sözel Bildiri

  • Yazarlar: Erkan Topkan, Cem Parlak , Ozan Cem Gu?ler, Cem Önal, Uğur Selek.
  • Çalışma: Evre IIIB Küçük Hücreli Dışı Akciğer Kanseri Tanısıyla Eşzamanlı Kemoradyoterapi Uygulanan Hastalarda Uzun Kemoradyoterapi Süresi Kötü Prognozla İlişkilidir.
  • Dernek: Ulusal Kanser Kongresi   
  • Tarih: 19 – 23 Nisan 2013
  • Yer: 20. Ulusal Kanser Kongresi, Antalya

    F2.  2013 En İyi 2.Sözel Bildiri.

     
  • Yazarlar: Gurcan Erbay, Cem Onal, Mehmet Reyhan, Ozan Cem Guler, Zafer Koc
  • Çalışma: Prognostic values of pretreatment SUVmax and ADCmean in cervical cancer patients treated with definitive chemoradiotherapy.
  • Dernek: 20th European Symposium on Urogenital Radiology.
  • Tarih: 19 – 22 September 2013.
  • Yer: 20th European Symposium on Urogenital Radiology, Istanbul, Turkey.

    F3.  2015 - Nijad Bilge Onkolojide En İyi Yayın Ödülü.

     
  • Yazarlar: Cem Onal, Mehmet Reyhan, Ozan Cem Guler, Ali Fuat Yapar.
  • Çalışma: Treatment outcomes of patients with cervical cancer with complete metabolic responses after definitive chemoradiotherapy.
  • Dernek: 21. Ulusal Kanser Kongresi.
  • Tarih: 21 – 26 Nisan 2015.
  • Yer: 21. Ulusal Kanser Kongresi, Antalya

    F4. 2015 En İyi Sözel Bildiri

     
  • Yazarlar: Berna Akkus Yıldırım, Ozan Cem Guler, Erkan Topkan
  • Çalışma: Düşük Ondera Prognostik Nutrisyonel İndeksi Neoadjuvan Kemoradyoterapi Uygulanan Rektum Kanserli Hastalarda Kötü Sağkalımı Predikte Eden Bir Faktördür
  • Dernek: 21. Ulusal Kanser Kongresi.
  • Tarih: 21 – 26 Nisan 2015.
  •  Yer: 21. Ulusal Kanser Kongresi, Antalya

    F5. 2016 - Lale Atahan Sözel Bildiri Ödülü

     
  • Yazarlar: Cem Önal, Mustafa Cengiz, Ozan Cem Güler, Yemliha Dölek, Serdar Özkök.
  • Çalışma: Mide Kanserinde Hedef Hacim Konturlamasında Gözlemciler Arası Değişkenliği Azaltmak İçin Konturlama Kurslarının Önemi.
  • Dernek: 12. Ulusal Radyasyon Onkolojisi Kongresi.
  • Tarih: 20-24 Nisan 2016.
  • Yer: 21. Ulusal Kanser Kongresi, Antalya

    F6. TROD En iyi Yayın Ödülü  
             
  • Yazarlar: Cem Parlak, Hüseyin Mertsoylu, Ozan Cem Güler, Cem Onal, Erkan Topkan Çalışma: Definitive chemoradiation therapy following surgical resection or radiosurgery plus whole-brain radiation therapy in non-small cell lung cancer patients with synchronous solitary brain metastasis: a curative approach.        
  • Dernek: 12. Ulusal Radyasyon Onkolojisi Kongresi.
  • Tarih: 20-24 Nisan 2016.
  • Yer: 21. Ulusal Kanser Kongresi, Antalya

    F7.  2017 – Sözel Bildiri Ödülü

     
  • Yazarlar: Ozan Cem Güler, Benedikt Engels, Cem Onal, Mark De Ridder.
  • Çalışma: Oligometastatik prostat kanserli hastalarda prostat spesifik membran antijen pozitron emisyon tomografi (PSMA -PET /CT ) rehberliğinde radyoterapi      
  • Dernek: Ulusal Kanser Kongresi.
  • Tarih: 19-23 Nisan 2017.
  • Yer: 23. Ulusal Kanser Kongresi, Antalya
     

İlgi Alanları ve Uzmanlık Alanı


     
  • 3 boyutlu konformal radyoterapi
  • Yoğunluk ayarlı radyoterapi
  • Stereotaktik radyoterapi
  • Brakiterapi
     

Katıldığı Kurslar


     
  • ESTRO: Target Volume Determination-from Imaging to Margins, Porto / Portekiz
  • ESTRO: Evidence and New Challenges In Rectal Cancer, İstanbul /Türkiye
  • ESTRO: Image-guided radiotherapy in Clinical Practice, Brüksel/Belçika 
     

Tezler


     

Glı?oblastome multı?forme tanısı ı?le temozolamı?d ve es? zamanlı konformal radyoterapı? veya yog?unluk ayarlı radyoterapı? teknı?g?ı?yle es? zamanlı entegre ek doz uygulanan ve uygulanmayan hastaların tedavı? sonuc?larının kars?ılas?tırılması