Know Cancer

forgot password

The Diagnostic Yield of Narrow Band Imaging Videobronchoscopy in Lung Cancer

19 Years
Not Enrolling
Lung Cancer

Thank you

Trial Information

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.

Inclusion Criteria:

- endobronchial lesion on chest CT

Exclusion Criteria:

- Age < 18 years old

- Inability to consent for the study

- Inability to tolerate bronchoscopy

- Active pulmonary infection (bronchitis, pneumonia)

- ST elevation or depression on ECG

- Prothrombin time prolongation(<70%)

- platelet <10,000

Type of Study:


Study Design:

Observational Model: Cohort, Time Perspective: Prospective

Outcome Measure:

accuracy of NBI videobronchoscopic biopsy

Outcome Description:

Define and compare the sensitivity, specificity, positive predictive value, negative predictive value, likelihood ratio and accuriacies for the diagnostic techniques for lung cancer.

Outcome Time Frame:

10-11 months

Safety Issue:


Principal Investigator

ChangMin Choi, M.D.

Investigator Role:

Principal Investigator

Investigator Affiliation:

Asan Medical Center


Korea: Food and Drug Administration

Study ID:




Start Date:

July 2009

Completion Date:

June 2010

Related Keywords:

  • Lung Cancer
  • narrow band imaging
  • malignant lesion
  • lung cancer
  • NBI
  • Lung Neoplasms