Hussain S, Loeffler J A, Babayan R K, Fenlon H M
Department of Radiology, Boston University School of Medicine, Massachusetts, USA.
Urology. 1997 Nov;50(5):685-8; discussion 689. doi: 10.1016/S0090-4295(97)00483-4.
To evaluate the application of virtual reality imaging of the bladder (virtual cystoscopy) in the detection of bladder masses.
Six patients (mean age 61 years, range 43 to 75) with hematuria and positive findings on conventional cystoscopy were studied by means of thin-section helical computed tomography of the air-distended bladder. Using volume-rendering algorithms, interactive intraluminal views of the bladder mucosa were generated (virtual cystoscopy). Results of virtual cystoscopy were compared with those of conventional cystoscopy in each case.
Twenty-six (100%) of 26 masses (mean size 1.7 cm, range 0.3 to 6), detected on conventional cystoscopy, were visualized on virtual cystoscopy. Twelve of 26 masses measured less than 1 cm in maximum diameter. All masses were pathologically proven transitional cell carcinomas. Virtual cystoscopy was well tolerated by all patients, and no complications occurred.
Our results indicate that virtual cystoscopy is an accurate technique for detection of intrinsic bladder masses. It may represent a radiologic adjunct to conventional cystoscopy for initial evaluation of patients with hematuria and for surveillance of patients after bladder tumor resection.
评估膀胱虚拟现实成像（虚拟膀胱镜检查）在膀胱肿块检测中的应用。
对6例血尿患者（平均年龄61岁，范围43至75岁）进行研究，这些患者在传统膀胱镜检查中发现阳性结果。通过对充气膀胱进行薄层螺旋计算机断层扫描，使用容积再现算法生成膀胱黏膜的交互式腔内视图（虚拟膀胱镜检查）。将虚拟膀胱镜检查的结果与每例患者的传统膀胱镜检查结果进行比较。
在传统膀胱镜检查中检测到的26个肿块（平均大小1.7厘米，范围0.3至6厘米）在虚拟膀胱镜检查中均可见。26个肿块中有12个最大直径小于1厘米。所有肿块经病理证实为移行细胞癌。所有患者对虚拟膀胱镜检查耐受性良好，未发生并发症。
我们的结果表明，虚拟膀胱镜检查是检测膀胱内肿块的一种准确技术。它可能是传统膀胱镜检查的一种放射学辅助手段，用于血尿患者的初始评估以及膀胱肿瘤切除术后患者的监测。
