论文部分内容阅读
为了探讨内镜下激光激发自体荧光对食管癌和胃癌的诊断意义 ,采用 MJ- L F医用激光荧光快速诊断仪 ,测定人体食管癌及胃癌恶性肿瘤组织的荧光光谱 ,与胃、十二指肠溃疡病人和慢性浅表性胃炎病人对照研究。结果显示 :32例胃癌病人中有 2 5例在肿瘤组织可测到肿瘤特征峰 ,阳性率 78.1% ;15例食管癌病人有 11例其癌肿组织可测到肿瘤特征峰 ,阳性率 73.3%。二组平均阳性率 76 .6 %。而 110例胃、十二指肠溃疡病人及 116例慢性浅表性胃炎病人未能测到肿瘤特征峰。结论 :上消化道恶性肿瘤食管癌和胃癌病人内镜下的激光荧光光谱测定有 76 .6 %的病人在 6 30 nm和/或 6 90 nm波长处可测出肿瘤特征峰。激光荧光光谱的测定对食管癌及胃癌的快速诊断具有一定临床意义
In order to investigate the significance of endoscopic laser-induced autofluorescence in the diagnosis of esophageal cancer and gastric cancer, MJ-LF medical laser-fluorescence rapid diagnostic apparatus was used to determine the fluorescence spectra of human esophageal and gastric cancer malignancies, as well as gastric and duodenal ulcers. Controlled study of patients and chronic superficial gastritis patients. The results showed that 25 out of 32 patients with gastric cancer had tumor characteristic peaks detected in tumor tissues, with a positive rate of 78.1%; 11 of 15 esophageal cancer patients had tumor features detected by their cancerous tissues, and the positive rate was 73.3%. . The average positive rate of the two groups was 76.6%. However, 110 patients with gastric and duodenal ulcers and 116 patients with chronic superficial gastritis could not detect the characteristic peak of the tumor. Conclusion : Endoscopic laser fluorescence spectrometry in patients with esophageal and gastric cancers of upper digestive tract malignancy can detect tumor characteristic peaks at 6 30 nm and/or 6 90 nm wavelength in 76.6% of patients. Laser fluorescence spectrometry has certain clinical significance for the rapid diagnosis of esophageal cancer and gastric cancer