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Year : 2003  |  Volume : 20  |  Issue : 1  |  Page : 18-22

Virtual cystoscopy - a promising diagnostic technique

Department of Urology,Government Royapettah Hospital, Chennai, India

Correspondence Address:
M G Rajamanickam
7, Anandan Street, T.Nagar, Chennai - 600 017
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Source of Support: None, Conflict of Interest: None

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Objectives: To determine the diagnostic performance of virtual cystoscopy in patients with bladder diseases in comparison with conventional cystoscopy. Methods: Fifteen patients with different bladder patho­logies underwent volumetric spiral CT of bladder after filling it with contrast media (GE medical system light speed multislice scanner). The data were transferred to Advantage workstation AW4.0-03 and virtual cystoscopy was performed using the special software (Navigator GE medical system). All the patients later underwent conven­tional cystoscopy and the findings of both investigations were compared. Results: Virtual cystoscopy detected all 10 lesions with >5mm size and missed I out of 3 lesions with 5 5mm size. The overall sensitivity was 90%, specificity was 100%, positive predictive value was 100% and negative predic­tive value was 83.3%. The average time taken per proce­dure was 8 minutes. No complications of virtual cystoscopy were encountered in our study. Conclusions: There seems to be good agreement as re­gards the site and size of lesions in both techniques. In the quest for a non-invasive investigation for assessment of bladder diseases, virtual cystoscopy is a promising tech­nology.

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