The value of contrast enhanced ultrasound in differentiating benign and malignant bladder neoplasms

doi:10.3877/cma.j.issn.1674-3253.2020.03.005

Abstract

Abstract:

Objective

To evaluate the value of contrast enhanced ultrasound in differentiating benign and malignant bladder neoplasms.

Methods

From May 2018 to December 2019, 17 lesions of 15 patients with bladder neoplasms, underwent contrast enhanced ultrasound (CEUS) in the Third Hospital of Longgang were included. The location, size, number, color doppler, arrival time and enhanced mode of CEUS were observed.

Results

Among the 17 lesions, 13 were malignant (12 bladder papillary urothelial carcinoma, 1 bladder sarcomatoid carcinoma), 4 were benign (1 cystitis glandular, 3 bladder deposits or clots), and the mean size was (2.8±1.5) cm. The accuracy of CEUS was higher than conventional ultrasound in diagnosing bladder malignant neoplasms (χ²=0.215, P=0.046). The arrival time of CEUS was (20.7±6.0) s in bladder papillary urothelial carcinoma with fast wash-in and slow wash-out. That was 13 s in bladder sarcomatoid carcinoma with fast wash-in and fast wash-out. That was 24 s in cystitis glandular. The bladder deposits or clots showed no wash-in.

Conclusion

Contrast enhanced ultrasonography improve the ability of conventional ultrasound in detecting and differentiating urinary bladder neoplasms.

Key words: Ultrasonography, Contrast enhanced ultrasound, Bladder neoplasms

Jian Zheng, Min Zhang, Qingjuan Wang, Jing Huang, Yuansen Chen, Xiang Peng, Siyuan Zou, Qiping Huang, Rongqin Zheng. The value of contrast enhanced ultrasound in differentiating benign and malignant bladder neoplasms[J]. Chinese Journal of Endourology(Electronic Edition), 2020, 14(03): 181-184.

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