The diagnostic value of narrow-band imaging for fiat bladder lesions
10.3760/cma.j.issn.1000-6702.2018.02.006
- VernacularTitle:窄带成像对膀胱扁平病灶的诊断价值
- Author:
Yifan CHANG
1
;
Zhensheng ZHANG
;
Weidong XU
;
Meimian HUA
;
Maoyu WANG
;
Aiguo WANG
;
Chuanliang XU
;
Yinghao SUN
Author Information
1. 海军军医大学附属长海医院泌尿外科
- Keywords:
Bladder tumors;
Flat bladder lesions;
Flexible cystoscopy;
Narrow-band imaging
- From:
Chinese Journal of Urology
2018;39(2):99-102
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the diagnostic value of narrow-band imaging for flat bladder lesions.Methods Forty-nine patients with flat bladder lesions diagnosed by white light cystoscopy + narrow-band imaging followed by transurethral resection were included.The diagnostic value of narrow-band imaging was evaluated based on postoperative pathological results.Results A total of 59 flat lesions were identified,in which 8 were normal urothelium,3 were chronic inflammation,1 was papillary urothelial neoplasm of low malignant potential,1 were mild dysplasia,1 was moderate dysplasia,1 were severe dysplasia,3 were carcinoma in situ,16 were low-grade papillary urothelial carcinoma,16 were high-grade papillary urothelial carcinoma,and 8 were invasive papillary urothelial carcinoma.For narrow-band imaging,the sensitivity was 86.7 ％ (39/45),specificity was 57.1％ (8/14),diagnostic accuracy was 79.7 ％ (47/ 59),false-positive rate was 42.9％ (6/14),positive predictive value was 86.7％ (39/45),negative predictive value was 57.1％ (8/14),area under ROC curve was 0.719.Among these lesions,the sensitivity and specificity for postoperative recurrent lesions were 100％ (3/3) and 40％ (2/5),respectively,and those for erythematous patch-like lesions were 90％ (9/10) and 100％ (4/4),respectively.Conclusion Narrow-band imaging can improve the detection rate for flat bladder tumor lesions,and reduce the risk for missed diagnosis under white light cystoscopy,especially for otherwise indistinguishable erythematous patch-like lesions.
