Hakan Özdemir

ORCID: 0000-0002-4458-3952
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About
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Research Areas
  • Prostate Cancer Diagnosis and Treatment
  • Cardiovascular Health and Disease Prevention
  • Prostate Cancer Treatment and Research
  • Retinal Diseases and Treatments
  • Renal and Vascular Pathologies
  • Cerebrovascular and Carotid Artery Diseases
  • Kidney Stones and Urolithiasis Treatments
  • Urologic and reproductive health conditions
  • Pelvic floor disorders treatments
  • Pediatric Urology and Nephrology Studies
  • Educational Leadership and Administration
  • Vasculitis and related conditions
  • Central Venous Catheters and Hemodialysis
  • Urinary Bladder and Prostate Research
  • MRI in cancer diagnosis
  • Thermal Regulation in Medicine
  • Otolaryngology and Infectious Diseases
  • Medical Education and Admissions
  • Medical Research and Practices
  • Reproductive Health and Technologies
  • Metastasis and carcinoma case studies
  • Gastric Cancer Management and Outcomes
  • Vascular Procedures and Complications
  • Reproductive Health and Contraception
  • Ultrasound and Hyperthermia Applications

Imaging Center
2021

Gazi University
1995-2019

Objective. Arterial resistive index values have poor sensitivity and specificity for alterations in renal perfusion induced by collecting system obstruction. We aimed to determine whether the intrarenal venous impedance could be useful evaluating parenchymal compliance cases of obstruction differentiating acute from chronic cases. Methods. Fifteen patients with colic having unilateral stone disease another 15 due various causes were evaluated sonographically. The diagnosis was confirmed...

10.7863/jum.2004.23.7.929 article EN Journal of Ultrasound in Medicine 2004-07-01

Objective The purpose of this study was to determine the effectiveness B-flow sonography in evaluation hemodialysis fistulas and compare new technique with color power Doppler sonography. Methods In study, 32 randomly selected patients (mean age, 46 years; age range, 18–87 years) normally functioning were evaluated low– high–pulse repetition frequency (PRF) (PRF values 3 10 kHz) All images reviewed graded independently by 2 observers for luminal filling flow signals, visibility intimal...

10.7863/jum.2005.24.11.1503 article EN Journal of Ultrasound in Medicine 2005-11-01

The aims of this study were to stage gastric malignancies and differentiate between carcinomas lymphomas. Twenty-two patients evaluated with endosonography. Tumoral infiltration depth (T stage) presence metastatic lymph nodes (N investigated. Five percent the cases staged as T2, 36% T3, 59% T4. According endosonographic examination, 14% NO, 68% N1, 18% N2 malignancies. When compared results surgery histopathologic accuracy was 82% for both T N stages. It can be concluded that endosonography...

10.7863/jum.1999.18.4.283 article EN Journal of Ultrasound in Medicine 1999-04-01

To establish the diagnostic performance of parameters obtained from dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and diffusion-weighted at 3T in discriminating between non-clinically significant prostate cancers (ncsPCa, Gleason score [GS] < 7) clinically (csPCa, GS ≥ peripheral zone.Twenty-six male patients with zone cancer (PCa) who had undergone multiparametric (MRI) scan prior to biopsy were included study evaluated retrospectively. The was by both standard 12-core...

10.1016/j.carj.2019.07.005 article EN Canadian Association of Radiologists Journal 2019-09-24

To evaluate the efficiency of ultrasound elastography (USE) in differential diagnosis thyroid nodules.One hundred nodules 100 patients (79 females, 21 males, age range 18-78; mean = 45.6 years) were evaluated with real-time freehand USE, using Hitachi EUB 7500 equipment and elasticity scores obtained. The was scored as follows: Score 1, entire nodule; 2, mainly elastic nodule presence inelastic areas not constant during real time examination; 3, prevalently arranged at periphery 4, center 5,...

10.5334/jbr-btr.747 article EN Journal of the Belgian Society of Radiology 2015-02-01

Objective: We aimed to investigate the role of digital rectal examination, PSA density, regional location lesion and prostate size in predicting cancer Prostate Imaging Data Reporting System (PI-RADS)-3 lesions. Material Methods: A total 236 patients with multiparametric MRI performed for clinical suspicion reported PI-RADS-3 enrolled between January 2016 July 2019 this retrospective study. The datas were extracted from hospital’s electronic records, patient files outpatient clinic records....

10.33719/yud.2021;16-2-850090 article EN cc-by-nc Yeni Üroloji Dergisi 2021-06-28

Objective: We aimed to evaluate magnetic resonance imaging-ultrasound guided fusion prostate biopsy (MRI- US FPBx) results from a single center and compare with current literature. Material Methods: Between January 2016 July 2019, MRI-US FPBx pathological imaging of 358 men were retrospectively analyzed. PI-RADS scores determined as 3, 4 5 in 222 (62%), 107 (29.8%) 29 (8.1%) patients, respectively. Totally 454 lesions underwent FPBx. 303 (66.7%) scored 120 (26.4%) 31 (6.8%) 5. 315 (69.3%)...

10.33719/yud.2021;16-2-850577 article EN cc-by-nc Yeni Üroloji Dergisi 2021-06-28
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