应用激光多普勒血流仪对１４例消化道表浅癌的血流进行了测定，同时选择同一水平点作为对照。结果发现肿瘤血流在局部喷洒肾上腺素后无明显改变（Ｐ＞０．０５）。而对照组血流在用药后血流明显减少（Ｐ＜０．００１）。这一结果与病理检查的符合率达７８．５％，提示利用肾上腺素观察肿瘤血流的变化有助于早期消化道肿瘤的诊断。 Laser Doppler flowmetry was used to measure the blood flow of 14 superficial gastrointestinal cancers, and the same level was used as a control. The results showed that tumor blood flow did not change significantly after spraying epinephrine (P>0.05). In the control group, blood flow was significantly reduced after administration (P<0.001). The coincidence rate of this result with pathological examination was 78.5%, suggesting that the use of adrenaline to observe changes in tumor blood flow is helpful for the diagnosis of early gastrointestinal cancer.