我们采用饮水法对56例贲门肿瘤患者进行超声检查,诊断结果均经手术病理证实。现将结果报告如下,并着重探讨贲门部检查方法和图像的识别。1　资料和方法1.1　一般资料　患者56例,男性50例,女性6例。年龄13～75岁,平均56岁。仪器使用Aloka650或680型超声仪,探头频率3.5～5.0MHz。 We used the drinking water method to perform ultrasound examination on 56 patients with cardia cancer. The diagnostic results were confirmed by pathology. The results are reported below, with emphasis on the identification of the cardiac examination methods and images. 1 Materials and Methods 1.1 General Information 56 patients, 50 males and 6 females. Aged 13 to 75 years old, average 56 years old. The instrument uses an Aloka 650 or 680 ultrasound system with a probe frequency of 3.5 to 5.0 MHz.