The Diagnostic Yield of Narrow Band Imaging Videobronchoscopy in Lung Cancer
Inspection with high resolution endoscopy was followed by NBI. Detected lesions were
biopsied. applied the system of shibuya et al. to analyze and classify vascular patterns by
NBI into four categories (spiral and screw pattern, dotted pattern, tortuous pattern,
avascular pattern) compared with the known diagnostic yield of conventional white light
bronchoscopy, An equivalent or superior result will also significantly impact on patient
care This technology could aid not only early-stage lung cancer diagnosis but also more
accurate local staging of lung cancer.
Observational Model: Cohort, Time Perspective: Prospective
accuracy of NBI videobronchoscopic biopsy
Define and compare the sensitivity, specificity, positive predictive value, negative predictive value, likelihood ratio and accuriacies for the diagnostic techniques for lung cancer.
ChangMin Choi, M.D.
Asan Medical Center
Korea: Food and Drug Administration