Abstract
Assessed the usefulness of virtual cystoscopy performed with multidetector computed tomography (CT) in patients with different urinary bladder pathologies compared to the conventional cystoscopy. Eighteen patients with different bladder pathologies, which consisted of 11 tumors, 3 diverticula, 2 trabecular changes and 2 stones, were assessed with conventional cystoscopy and virtual CT cystoscopy. The results of virtual CT cystoscopy were compared with the findings of conventional cystoscopy. We determined the detection rate and positive predictive value of CT imaging based virtual cystoscopy in the diagnosis of urinary bladder lesions. CT scanning was well tolerated by all patients, and no complications occurred. Images in 16 (88%) of the 18 virtual cystoscopic examinations were either of excellent or good quality. All tumors except one, 2 trabecular changes and 2 stones were characterized with similar findings in the both of methods. The masses ranged from 0.4 to 7.0 cm in diameter. While conventional cystoscopy could not evaluate interior part of the diverticulum, virtual CT cystoscopy could demonstrate clearly within it. There were no false-positive findings in our series. Virtual CT cystoscopy is a promising technique to be used in the detection of bladder lesions. It should be considered especially at the evaluation of bladder diverticula. In the future, it may be possible or even advantageous to incorporate into the imaging algorithm for evaluation of bladder lesion.
Highlights
Bladder pathologies are consisted of the important group of genitourinary tract diseases
Conventional cystoscopy is a standard diagnostic approach for urinary bladder evaluation, its primary indication is the diagnosis of lower urinary tract disease, sings, and symptoms that may be related to the urinary tract are evaluated using cystoscopy to directly visualize lower urinary tract anatomy and macroscopic pathology
The purpose of this study was to evaluate the usefulness of virtual cystoscopy using a volume rendering algorithm performed with multidetector computed tomography (CT) in patients with different urinary bladder pathology compared with the gold standard that is, conventional cystoscopy and to determine the modality’s detection rate and positive predictive value
Summary
Bladder pathologies are consisted of the important group of genitourinary tract diseases. Conventional cystoscopy is a standard diagnostic approach for urinary bladder evaluation, its primary indication is the diagnosis of lower urinary tract disease, sings, and symptoms that may be related to the urinary tract are evaluated using cystoscopy to directly visualize lower urinary tract anatomy and macroscopic pathology. Virtual reality imaging allows interactive intraluminal navigation through any hollow viscus, simulating conventional cystoscopy This technique of virtual endoscopy has been applied to many organs, including the colon, bronchus, stomach, and bladder [3,4,5,6]. The purpose of this study was to evaluate the usefulness of virtual cystoscopy using a volume rendering algorithm performed with multidetector CT in patients with different urinary bladder pathology compared with the gold standard that is, conventional cystoscopy and to determine the modality’s detection rate and positive predictive value
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