Akaike M
First Department of Surgery, Yokohama City University School of Medicine, Japan.
Nihon Geka Gakkai Zasshi. 1989 Nov;90(11):1855-65.
Preoperative diagnosis of the penetration of esophageal cancer is important in its treatment. Lipiodol Ultra Fluid was injected into the oral side of the lesion, and after consideration of the state of its transfer linearly and histologically, the contrast medium had mostly transferred into the spaces between tissue. As a preoperative method of diagnosis, the ratio of the distance of transfer from the proximal edge of the tumor to the distal edge of the tumor in relation to the vertical length of the tumor was calculated and called the transfer ratio, and also (1) the distance from the assumed edge of tumor to the projecting portion in the inner cavity for the deepest part of the tumor was calculated, as was (2) the same calculation for the greatest penetration of contrast medium in the layer of adventitia, and the transfer ratio was multiplied by (2)/(1) and the result was called the section ratio. Using the transfer ratio and the section ratio, the preoperative depth of the invasion by the esophageal cancer was classified into four classifications: A0(sm), A0(pm), A1-2, and A3. The accuracy of diagnosis, comparing the preoperative diagnosis and the histological examination was: A0(sm): 100%, A0(pm): 75%, A1-2: 91.7%, A3: 80% and was 85.7% overall, showing very good result.
食管癌浸润的术前诊断对其治疗至关重要。将超液化碘油注入病变的口腔侧，在考虑其线性转移状态和组织学状态后，造影剂大多转移到组织间隙中。作为术前诊断方法，计算肿瘤近端边缘到肿瘤远端边缘的转移距离与肿瘤垂直长度的比值，称为转移率，并且（1）计算从假定的肿瘤边缘到肿瘤最深部内腔突出部分的距离，以及（2）对外膜层中造影剂最大浸润深度进行同样的计算，将转移率乘以（2）/（1），结果称为截面率。利用转移率和截面率，将食管癌术前浸润深度分为四类：A0（sm）、A0（pm）、A1 - 2和A3。将术前诊断与组织学检查相比较，诊断的准确率为：A0（sm）：100%，A0（pm）：75%，A1 - 2：91.7%，A3：80%，总体为85.7%，显示出非常好的结果。
