Yasuda H
Nihon Geka Gakkai Zasshi. 1986 Jun;87(6):608-25.
To establish the diagnosis of the depth of gastric cancer invasion by ultrasonic method scanned from the body surface preoperatively, 51 resected specimens of gastric cancer and 61 in-patients with gastric cancer were examined by Toshiba electro-linear-scanner (SAL-50A). Experiments of inserting a needle into the wall of resected stomach and removing some layers of specimens were done to determine the origin of the ultrasonic five layers structure. The tomographies, which were obtained from 51 specimens scanned in the water and 61 patients scanned from the body surface, were compared with their microscopic findings. The lesions which were limited in the anterior or posterior wall and located distal to the middle part of stomach body were able to be diagnosed accurately. It was difficult to diagnose the depth when there was a deep benign ulcer formation associated with an early cancer lesion or deformity of gastric wall due to compression of massive tumor. The depth diagnosed by ultrasonic method was sometimes deeper than final pathological one but rarely shallower than it. In this study, most advanced gastric cancer could be diagnosed correctly by this ultrasonic method preoperatively. This fact serves useful reference to determine the operative procedure.
为通过术前体表超声扫描法确定胃癌浸润深度的诊断，使用东芝电子线阵扫描仪（SAL - 50A）对51例胃癌切除标本及61例胃癌住院患者进行了检查。通过向切除胃壁内插针并去除部分标本层的实验来确定超声五层结构的来源。将51例在水中扫描的标本及61例从体表扫描的患者所获得的断层图像与其显微镜检查结果进行比较。局限于胃前壁或后壁且位于胃体中部远端的病变能够被准确诊断。当存在与早期癌病变相关的深部良性溃疡形成或因巨大肿瘤压迫导致胃壁变形时，浸润深度难以诊断。超声诊断的深度有时比最终病理诊断的深，但很少比其浅。在本研究中，大多数进展期胃癌通过这种超声方法术前能够被正确诊断。这一事实对确定手术方式有重要参考价值。
