Category: Education, Simulation & Virtual Reality

MP22-22 - How Do Urologists Use Radiological Diagnostic Tools for Urinary Stone Disease Diagnosis: Evaluation of an Evaluation

Sat, Sep 22
2:00 PM - 4:00 PM

Introduction & Objective : Radiological diagnostic tools, especially computerized tomography (CT), have a prominent role in diagnosis and pre-operative planning of urinary stones. We aimed to investigate the preferences of urologists and urology-residents, about how and when they use these complicated tools while evaluating a stone patient.

Methods : A 22- item survey questionnaire was presented to the participants either printed or electronically through a web-based online system. The questionnaire was built in Turkish and was translated to English and French to facilitate contribution of urologists from different countries. Overall evaluation results were extracted and subgroup analyses were made. Results were compared according to the contributors' nationality as a Turkish and non-Turkish.

Results : A total of 222 urologists and urology-residents from 24 different countries (141 Turkish and 81 non-Turkish) participate to our study. Majority of the participants were found to be urologists (74.7%). The mean age was 39.1 ± 9.9. The vast majority of the participants (95.8%) preferred to evaluate the CT scans personally; and almost half of the participants (54.5%) absolutely asked radiology report of the CT prior to a surgery. The preferred mean CT section thickness of the study group were found to be 2.8 ± 1.44 mm. Subgroup analyses revealed that the rate of the participants who wanted to evaluate the CT images personally was higher in the Turkish compared to the non-Turkish group (p<0.001); and similarly Turkish participants asked for a radiology report less compared to the non-Turkish participants (p<0.001). Prior to a stone surgery non-contrast CT (NCCT) scan was the leading imaging technique preferred (77% for Turkish and 77.5% for non-Turkish). Intrestingly, Turkish participants were found to be in favour of intravenous pyelography (IVP) in kidney stone surgery work-up, whereas non-Turkish participants preferred contrast-enhanced CT scan. This difference in preference was shown to be statistically significant. Participants noted that they use various tools in NCCT scan evaluation, among these the most frequently used were found to be stone diameter (97.3%), stone-to-skin distance (86.9%), Hounsfield unit (79.3%) and infindibulopelvic angle measurements (77.9%).

Conclusions : Urologists and urology-residents usually prefer to have a radiology report for a NCCT scan before surgery; however, most of the urologists want to see and evaluate the NCCT personally. NCCT are frequently used to understand the stone characteristics and location. Radiologic work-up varies considerably between Turkish and non-Turkish urologists/urology-residents.

Bahadir Sahin

Marmara University, Department of Urology, Istanbul, Turkey
Istanbul, Istanbul, Turkey

Tarık Emre Sener

Marmara University, Department of Urology, Istanbul, Turkey
Istanbul, Istanbul, Turkey

Tarik Emre SENER, MD, FEBU
Marmara University, School of Medicine
Department of Urology
Istanbul / Turkey

Tarik Emre Sener, after graduating from French high school Lycée Saint-Joseph, Istanbul, studied Medicine between the years 2004-2010 in Marmara University, School of Medicine in Istanbul. He completed his residency training in Urology between the years 2011-2016 in Marmara University, School of Medicine, Department of Urology. During his residency, he completed 3 months of Endourology Fellowship in Tenon University Hospital, Paris alongside Professor Olivier Traxer. During his medical and residency training, he has presented several abstracts at international meetings and has authored many peer-reviewed articles covering a broad range of topics in Endourology, Pediatric Urology, Pharmacology and Physiology.
He is currently working in Marmara University, School of Medicine, where he is involved in all the medical and surgical management of patients as well as many scientific research projects.
He is the founder member and current general secretary of PETRA Urogroup, an international collaboration group dedicated to scientific and surgical activities on Endourology and Stone Diseases.

Address: Acıbadem Mahallesi Çeçen Sokak, Almondhill Konutları B8 blok Daire:6 Üsküdar İstanbul Türkiye 34660
Contact Information:
Cellular: +90 533 762 07 12
Twitter: @dremresener

PETRA Urogroup Website:
Link to Research Gate:

Yiloren Tanidir

Director of Endourology and Stone disease
Marmara University, Department of Urology, Istanbul, Turkey
Istanbul, Istanbul, Turkey

Dr. Tanidir obtained his medical degree from Hacettepe University in Ankara, Turkey in 2001. He completed his urology residency at Marmara University School of Medicine in Istanbul, Turkey between 2002-2007.

Dr. Tanidir joined the faculty of Marmara University School of Medicine in 2014. Initially, he served as a Lecturer and Urology Specialist in the Urology Department. In 2015, he promoted to Assistant Professor of Urology and finally in April 2018, he became an Associate Professor of Urology. He is an expert in endoscopic surgery of urinary tract stone disease. He is both involved in the medical and surgical management of patients, education of urology residents and medical students. He is the primary investigator of many on-going scientific research projects.

His main primary research areas are endourological interventions, urinary tract stone disease, and metabolic stone disease. His secondary research areas are reconstructive urology, pediatric urology, functional urology, and urooncology. He serves as a member on the Patient Information Group of European Urology Association (EAU) since 2016. He is in the editorial board of Uropedia since 2016 and recently became a board member in The Society of Minimal Invasive Urology in Turkey.

Dr. Tanidir has published research, covering a broad range of topics in urology, in numerous formats, including book sections and articles in peer-reviewed journals. He also has been invited as a speaker to various congress and meetings.