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所谓多普勒灌注指数(Doppler perfusion index,DPI)是应用多普勒超声仪测得的肝动脉血流与全肝血流的比值,在结肠直肠癌伴肝转移时该比值常增高。作者应用DPI和Dukes分期观察病人的预后。在80例结肠直肠癌治愈性切除病人作DPI测定。根据以往50例健康对照组和90例结肠直肠癌伴肝转移的测定结果,正常DPI值的上限为0.26,异常值的下限为0.30,凡>0.3者均列为异常。全部病人
The so-called Doppler perfusion index (DPI) is the ratio of hepatic artery blood flow to total hepatic blood flow measured by Doppler ultrasound. This ratio often increases in colorectal cancer with liver metastases. The authors used DPI and Dukes to observe the patient’s prognosis in stages. DPI was measured in 80 patients with curative resection of colorectal cancer. According to the results of previous 50 healthy controls and 90 cases of colorectal cancer with liver metastases, the upper limit of normal DPI value was 0.26, and the lower limit of abnormal value was 0.30, all of which were listed as abnormal. All patients