Comparison of Virtual Cystoscopy and Transabdominal Ultrasonography with Conventional Cystoscopy for Bladder Tumor Detection

Abstract

VC showed better accuracy for detection of bladder neoplasms, especially in tumors smaller than 1 cm and for polypoid lesions.

A comparison between transabdominal ultrasonographic and cystourethroscopy findings in adult Sudanese patients presenting with haematuria

“…Low to moderate sensitivity between 50 and 87.1 % and good specificity between 90.4 and 97.1 of US had been reported earlier [19][20][21]. But our finding is very close to (63.4 %) that reported by Lopes et al [22]. In contrast, high sensitivity (91.4 %) with moderate specificity (79.3 %) was reported by Francica et al [20].…”

Accuracy of contrast-enhanced ultrasound in the detection of bladder cancer

“…Despite conventional ultrasound currently being the preferred non-invasive imaging technique for the screening of bladder cancers, its accuracy depends on several factors, including distension of the bladder, tumour size, morphology and location of the lesions [2]. The main limitation of ultrasound, which was found to be a factor in the present study, is its low sensitivity in detecting lesions smaller than 1 cm [3,20]. CEUS sensitivity for the number of detected bladder cancers was 65.5%, which may be explained by the high number of tumours #5 mm detected by cystoscopy (n525).…”

“…In the literature, there is no agreement regarding the most difficult places to detect bladder cancers using ultrasound. Those suggested include the anterior and posterior bladder wall [3], the bladder neck or dome areas [20] and the anterior wall [27]. Detection of small tumours in the bladder floor can be a challenge in male patients with benign prostatic hyperplasia (BPH) [28][29][30].…”

“…Conventional ultrasound (US) is one of the imaging techniques used to screen for bladder cancer, but with variable accuracy. The best results are obtained using the latest equipment and new imaging tools such as three-dimensional (3D) ultrasound [2][3][4][5]. Angiogenesis is essential to allow growth of malignancies, and the detection of tumoural neovascularisation is one of the keys of imaging modalities to achieve a definite diagnosis.…”

Imaging in Bladder Cancer: Present Role and Future Perspectives

“…Up to now, data by virtual cystoscopy are only investigative. Its indications are for patients who firmly decline cystoscopy or in the case of hematuria [10]. It shows a better accuracy compared to ultrasonography for the detection of bladder neoplasm mainly !1 cm and for polypoid lesions but it is more expensive [10].…”