Veronika Gazhonova MD, PhD, PRESENTER: Nothing to Disclose

Abstract: HTML Purpose: To determine the possibilities of 3D Transrectal sonography in preoperative staging of bladder tumors and to correlate the findings with cystoscopic, and pathomorphological data. Methods and Materials: 16 patients with bladder tumors detected by US were enrolled in the study. 3D TVS were performed on Aplio (Toshiba). Multiplanar (MPR) reconstructions, surface rendering of the bladder with tumor were created. Vascularity degree of the tumor basement was studied using 3D Power Doppler (grade 0-2). All patients underwent cystoscopy with transurethral biopsy. Preoperative location of the tumors, number, depth of invasion, width of the basement, and interactions with the ureter jet and bladder neck were assessed. Results: 21 bladder tumors were found (6 papillomas, 15 bladder cancer). 10 TUR and 6 bladder resections were performed. Surgical management was changed after 3D US in 4 cases. Staging was correct in 76% (16/21) by 2D US vs 90% (19/21) by 3D PD US. Surface rendering volumetric data of the tumors was similar to cystoscopic in all cases and helped to distinguish and target the biopsy of additional 3 tumors in 2 cases with heavy bladder hematuria. Both methods were sensitive in detection and location of the tumors. 3D Power Doppler was superior to conventional 2D in staging T2-T3 bladder tumors, in assessment of the interactions with the bladder neck and ureteric jet in 100% vs 66%. 3D MPR were accurate in detection of the width of the basement of the bladder tumors, which is of value for TUR. Conclusion: 3D TRUS with PD is a useful complement to conventional ultrasound for staging of bladder tumors which influences on surgical management.       Questions about this event email: zubarev@cch.pmc.ru

Gazhonova MD, PhD, V, 3D Transrectal Sonography in Detection and Local Staging of Bladder Tumours: Cystoscopic and Pathomorphological Correlations.  Radiological Society of North America 2003 Scientific Assembly and Annual Meeting, November 30 - December 5, 2003 ,Chicago IL. http://archive.rsna.org/2003/3104190.html