IN-VIVO CANCER-DIAGNOSIS OF THE ESOPHAGUS USING DIFFERENTIAL NORMALIZED FLUORESCENCE (DNF) INDEXES

被引:112
作者
VO-DINH, T [1 ]
PANJEHPOUR, M [1 ]
OVERHOLT, BF [1 ]
FARRIS, C [1 ]
BUCKLEY, FP [1 ]
SNEED, R [1 ]
机构
[1] THOMPSON CANC SURVIVAL CTR, KNOXVILLE, TN 37916 USA
关键词
CANCER DIAGNOSIS; LASER-INDUCED FLUORESCENCE; TISSUE AUTOFLUORESCENCE; ADENOCARCINOMA; FIBER OPTIC SENSOR; IN-VIVO TISSUE ANALYSIS;
D O I
10.1002/lsm.1900160106
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
Background and Objective: We report the use of new diagnostic parameters based on the differential normalized fluorescence (DNF) signals for malignant tumor diagnosis. Study Design/Materials and Methods: Over 200 measurements of endogenous fluorescence from normal and malignant esophageal tissues were performed during routine endoscopy in 48 patients. A pulsed nitrogen-pumped dye laser was used to provide in situ excitation at 410 nm. Direct collection of the fluorescence signal emitted by the tissue was achieved using an intensified photodiode array detector equipped with a fiberoptic probe. Results: The fluorescence signals were normalized with respect to the total fluorescence signal area. The cancer diagnosed indices were defined by the difference between the normalized fluorescence signal of a tumor and the mean value of a reference set of normal tissues. The results of the DNF approach were compared with endoscopic examinations and histopathology interpretations of the biopsy samples. Excellent correlation in the classification of normal and malignant tumors for the samples was found. Conclusion: The data indicated that the DNF approach has a significant potential to provide a direct, real-time, and in-situ technique for cancer diagnosis of the esophagus without requiring biopsy of the tumors and time-consuming histopathology tests. (C) 1995 Wiley-Liss, Inc.
引用
收藏
页码:41 / 47
页数:7
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