经内镜微超声探头诊断胃粘膜下肿瘤的价值

Transendosepoic Miniature Ultrasonic Probe in the Diagnosis of Gastric Submucosal Tumor

本文就经内镜微超声探头(TEMP)诊断胃粘膜下肿瘤的价值,与胃镜和超声内镜作了比较研究。结果:①18例胃粘膜下肿瘤以粘膜下平滑肌瘤居多,占88.9％,以壁内型为主;②TEMP对肿瘤大小的判断符合率为88.9％,明显高于胃镜(33.3％),③TEMP对胃粘膜下肿瘤的总诊断符合率达100％,明显高于胃镜(61.l％),④胃粘膜下肿瘤的TEMP声像图特征与肿瘤的性质有关,其共同点为:肿瘤均为高回声粘膜带下的低回声病灶,病灶起源处有清晰的喇叭口,多呈圆形成类圆形,多向胃腔内隆起。结论:选择性应用TEMP诊断胃粘膜下肿瘤,尤其是小病灶和EUS难检病灶具有较大的价值。

In order to evaluate the use of transendoscopic miniature ultrasonic probe (TEMP) in the diagnosis of gastric submucosal tumor, 18 patients were investigated. The results obtained by TEMP were compared with those of gastroscopy, and endoscopical ultrasonography (EVS). The result showed that among those 18 patients, gastric submucosal leiomyomas, were common and accounted for 88.9％. Most of them were intramural. The diagnostic accuracy of TEMP for the size of tumor and gastric submucosal tumor was 88.9％ and 100％ respectively. Which were much higher than those of gastroscopy (33.3％ and 61.1％ respectively). The sonogrophic characteristics of gastric submucosal tumors in TEMP imaging were related to the nature of the tumors, hut the common manifestations were that all the tumors were hypoechoic under the hyperechoic mucosal layer with clear bell shaped origin, and usually appeared as round or nearly round intragastric eminence. It is concluded that the selective use of TEMP has great value in the diagnosis of gastric submucosal turmor, especially for those lesions which were small and difficult to be detected by EUS.