3D detection and extraction of bladder tumors via MR virtual cystoscopy

2015 ◽  
Vol 11 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Dan Xiao ◽  
Guopeng Zhang ◽  
Yang Liu ◽  
Zengyu Yang ◽  
Xi Zhang ◽  
...  
Keyword(s):  
Bladder Tumors ◽  
Virtual Cystoscopy

scholarly journals Can CT Virtual Cystoscopy Replace Conventional Cystoscopy in Early Detection of Bladder Cancer?

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Sachin Abrol ◽  
Ankush Jairath ◽  
Sanika Ganpule ◽  
Arvind Ganpule ◽  
Shashikant Mishra ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Early Detection ◽  
Predictive Value ◽  
Bladder Tumor ◽  
Urothelial Cancer ◽  
Routine Clinical Practice ◽  
Bladder Tumors ◽  
Virtual Cystoscopy ◽  
Sensitivity Specificity

Aim. To correlate findings of conventional cystoscopy with CT virtual cystoscopy (CTVC) in detecting bladder tumors and to evaluate accuracy of virtual cystoscopy in early detection of bladder cancer.Material and Method. From June 2013 to June 2014, 50 patients (46 males, four females) with history and investigations suggestive of urothelial cancer, with mean age 62.76 ± 10.45 years, underwent CTVC by a radiologist as per protocol and subsequently underwent conventional cystoscopy (CPE) the same day or the next day. One urologist and one radiologist, blinded to the findings of conventional cystoscopy, independently interpreted the images, and any discrepant readings were resolved with consensus.Result. CTVC detected 23 out of 25 patients with bladder tumor(s) correctly. Two patients were falsely detected as negative while two were falsely labeled as positive in CTVC. Virtual and conventional cystoscopy were comparable in detection of tumor growth in urinary bladder. The sensitivity, specificity, positive predictive value, and negative predictive value of virtual cystoscopy were 92% each.Conclusion. CTVC correlates closely with the findings of conventional cystoscopy. Bladder should be adequately distended and devoid of urine at the time of procedure. However, more studies are required to define the role of virtual cystoscopy in routine clinical practice.

Virtual cystoscopy in the evaluation of bladder tumors

2004 ◽  
Vol 28 (2) ◽  
pp. 138-142 ◽  
Author(s):  
Cisel Yazgan ◽  
Suat Fitoz ◽  
Cetin Atasoy ◽  
Kadir Turkolmez ◽  
Cemil Yagci ◽  
...  
Keyword(s):  
Bladder Tumors ◽  
Virtual Cystoscopy

1918: Comparison of Virtual Cystoscopy and Ultrasonography for Detection of Bladder Tumors and Virtual Cystoscopy Utilization for Surveillance of Bladder Neoplasms

2004 ◽  
Vol 171 (4S) ◽  
pp. 507-507
Author(s):  
Roberto Lopes ◽  
Lucienne Nogueira ◽  
César Albertotti ◽  
Daniel Takahashi ◽  
Giovanni Cerri ◽  
...  
Keyword(s):  
Bladder Neoplasms ◽  
Bladder Tumors ◽  
Virtual Cystoscopy

scholarly journals CT endoscopy in urinary bladder lesions detection

2007 ◽  
Vol 54 (3) ◽  
pp. 63-66 ◽  
Author(s):  
D.M. Masulovic ◽  
Dj.Z. Saranovic ◽  
D.Z. Sagic ◽  
R.S. Stevic ◽  
R. Maksimovic ◽  
...  
Keyword(s):  
Urinary Bladder ◽  
Optimal Estimation ◽  
Bladder Tumors ◽  
Tumor Spread ◽  
Virtual Cystoscopy ◽  
Bladder Distension ◽  
Additional Information ◽  
Virtual Images ◽  
Carcinomatous Lesion

Aim: To evaluate applicability and efficacy CT vurtual cystoscopy in detection of urinary bladder tumors. Material and methods: During the period of 14 months, 17 patients with suspicion or present of some urinary bladder lesions has undergone CT virtual and conventional cystoscopy. After examination, all data were moved to the workstation for interactive endoluminal navigation. After that, radiologist analyzed transversal and virtual images without results of conventional cystoscopy and made conclusion. Results: Results were divided according to their basic clinical application. By using this method, all lesions over 5 mm in size were revealed. In the group of patients that were followed up for urinary bladder tumors, three patients with carcinomatous lesion were revealed. Two tumors of bladder vault that were missed on transversal scan were visualized by virtual cystoscopy. Useful additional information about tumor spread was given in two patient. One tumor inside the bladder diverticulum was detected, that was not seen by conventional cystoscopy. In two patients, endoluminal origin of mass that could not be confirmed by conventional radiologic methods, was determined. Conclusion: CT virtual cystoscopy is useful method and technique that promise a lot, especially in following situations: a) follow up of bladder tumors; b) supplemental estimation of endoscopically hardly accessible regions; c) differential diagnosis between intravesical and exravesical lesions. Optimal estimation offers adequate bladder distension with patient positioned on the back and on the belly and interpretation as well as on transversal and virtual images. .

MP-20.02: Low Dose CT Virtual Cystoscopy: A Noninvasive Valuable Technology of Diagnosis to the Bladder Tumors

Urology ◽  
2009 ◽  
Vol 74 (4) ◽  
pp. S141
Author(s):  
X. Xie ◽  
D. Xu ◽  
X.L. Zhu ◽  
F. Miao ◽  
Z.J. Shen ◽  
...  
Keyword(s):  
Low Dose ◽  
Bladder Tumors ◽  
Virtual Cystoscopy ◽  
Low Dose Ct

scholarly journals The Role of Virtual Cystoscopy, after Multidetector Computed Tomography Imaging Reconstruction without the Use of Contrast Medium, in the Diagnosis and Evaluations of Bladder Tumors: Preliminary Study

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Kyriaki Kalokairinou ◽  
Achilles Ploumidis ◽  
Theodoros Kalogeropoulos ◽  
Lampros Vlachos ◽  
Kyriakos Stringaris ◽  
...  
Keyword(s):  
Multidetector Ct ◽  
Transitional Cell ◽  
Three Dimensional ◽  
Diagnostic Algorithm ◽  
Bladder Tumors ◽  
Virtual Cystoscopy ◽  
Imaging Reconstruction ◽  
Dimensional Reconstruction

Introduction. Although conventional cystoscopy is considered to be the gold standard for diagnosis and follow-up of bladder tumors, it remains an invasive and costly procedure. With the advent of the multidetector CT (MDCT) scanners supported by specialized software virtual cystoscopy (VC) is possible. We assess the role of VC in diagnosing and evaluating bladder lesions.Materials and Methods. Between September 2010 and October 2011, 25 consecutive patients with cystoscopically confirmed bladder tumor underwent VC. The radiologists involved in this prospective study were blinded to the exact findings. After draining any residual urine with a catheter, the bladder was retrogradely insufflated with 200–600 cc of air. No intravenous or intravesical contrast was used. MDCT scan was performed in supine and prone positions and three-dimensional reconstruction of the urinary bladder was performed.Results. The examination was well tolerated by all patients with no complications. In total, 43 lesions were detected both with conventional cystoscopy and VC. Tumor size measured by CT ranged from 3 to 80 mm in diameter. The pathological report revealed noninvasive transitional cell carcinomas in all cases.Conclusion. VC has promising results in detecting exophytic bladder lesions. In the future it could be part of the diagnostic algorithm for bladder tumors.

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