122.12

APPLICATION OF VOLUMETRIC DYNAMIC VOIDING COMPUTED CYSTURETROGRAPHY IN URETHRAL STRICTURE DIAGNOSIS BEFORE AND AFTER RECONSTRUCTIVE SURGERY

Shchekoturov I.O., Bakhtiozin R.F., Istranov A.L., Serova N.S.

 

 

Purpose.

To determine the possibilities of volumetric dynamic voiding computed cystourethrography for assessment of the lower urinary tract in patients with urogenital pathology, which were treated with free revascularized microsurgical autografts.

Materials and methods. We performed volumetric dynamic voiding computed cystourethrography and X-ray voiding cystourethrography examinations in 56 patients (100%) with various pathologies of the urethra. The examinations were performed using wide detector computed tomography scanner. Detector is possible to cover 16 centimeters area of the interest  per one rotation of the X-ray tube.

Results. Thirty two of fifty six examined patients underwent phallus and urethra reconstruction using free revascularized microsurgical autografts. The rest of the patients underwent only reconstruction of the urethra. According to the volumetric dynamic voiding computed cystourethrography data the average urine flow rate in patients with urethral strictures was 4.3±1.3  ml/s, after stricture the urine flow rate was 8.1±5.4 ml/s. Sensitivity, specificity and accuracy for urethral stricture detecting were 95,7 %, 94,1 %, 95,0% for volumetric dynamic voiding computed cystourethrography and 86,9%, 88,2%, 87.5% for voiding cystourethrography.

Conclusion. The obtained results demonstrate higher diagnostic efficiency rates of voiding dynamic computed cystourethrography in the assessment of urethral stricture, compared to the X-ray voiding cystoureterography. In addition this modern method provides additional information about the urine flow rate.

I.M. Sechenov First Moscow State Medical University (Sechenov University). Moscow, Russia.

Keywords: CT, voiding cystourethrography, phalloplasty, urethral stricture, obliteration of the urethra.

 

Corresponding author: Shchekoturov I.O., e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript

 

For citation: Schekoturov I.O., Bakhtiosin R.F., Istranov A.L., Serova N.S. Application of volumetric dynamic voiding computed cysturetrography in urethral stricture diagnosis. REJR 2022; 12(2):124-131. DOI: DOI: 10.21569/2222-7415-2022-12-2-124-131.

Received:        10.02.22 Accepted:       15.06.22