• Norihiko Ikeda, Hidetoshi Honda, Aeru Hayashi, Jitsuo Usuda, Yasufumi Kato, Masahiro Tsuboi, Tatsuo Ohira, Takashi Hirano, Harubumi Kato, Hiromi Serizawa, and Yoshimitsu Aoki.
• Department of Thoracic Surgery, Tokyo Medical University, Tokyo, Japan. ikeda@wd5.so-net.ne.jp
• Lung Cancer. 2006 Apr 1; 52 (1): 21-7.

AbstractThe combination of white light and autofluorescence bronchoscopy has been reported to show better sensitivity in detecting dysplasia and cancer of the bronchus than white light alone. However, fiberoptic bronchoscopy has been replaced by videoendoscopy at most leading facilities for over a decade. To avoid interruption of the videoendoscopy examination to perform fiberscopy-based autofluorescence examination as well as enhancing the sensitivity of intraepithelial lesions, autofluorescence diagnosis system integrated into a videoendoscope (SAFE 3000, Pentax, Tokyo) was created. A total of 154 consecutive patients were studied using this system, containing 83 known or suspected lung cancer cases, 46 of the cases with abnormal sputum cytology findings, 10 follow up cases following lung cancer operations, and 15 heavy smokers with respiratory symptoms. Abnormal findings were recognized by white light and/or SAFE 3000 at 166 sites and biopsies were taken to evaluate the relationship between endoscopic findings and pathology results. The sensitivity of the system for CIS+dysplasia was 65% in white light and 90% in SAFE. This videoendoscopy-based autofluorescence system had significantly higher sensitivity for intraepithelial lesions than white light videoendoscopy alone.

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