Narrow-band imaging cystoscopy to evaluate bladder tumours--individual surgeon variability.
METHODS
Diagnosis (exploratory cohort) Level of Evidence 2b.


OBJECTIVE
To assess individual urologist variability using narrow-band imaging (NBI) cystoscopy to evaluate bladder tumours.


METHODS
In all, 50 patients underwent white-light and NBI cystoscopy to evaluate for recurrent bladder tumours. Endoscopic images in each patient were independently viewed by four urologists assessing presence or absence of tumour. Their findings were correlated with biopsy results.


RESULTS
In all, 26 patients had recurrent tumour and 24 had benign histology. There were no significant differences among urologists detecting recurrent tumour or in determining final pathology.


CONCLUSIONS
There does not appear to be a 'learning curve' for adapting to NBI-surveillance cystoscopy in patients with bladder cancer.
Herr
Harry
H
Department of Urology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. herrh@mskcc.org
Donat
Machele
M
Dalbagni
Guido
G
Taylor
Jennifer
J
D003558:Cystoscopy / Q000379:methods* / Q000706:statistics & numerical data; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008027:Light; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis*; D015588:Observer Variation; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis*