我院于1990年8月至1993年1月间对12例小儿急性肠套叠施行了B超检查，并对其中10例在B超监视下施行水加压灌肠。对于临床拟论急性肠套的患儿，采用日本AlokaSSD－720B超仪，探头频率3．5MHz，行直接切查，重点扫查结肠框缘。12例病人横切面超声图象均见同心圆样改变，即所谓靶环 Our hospital from August 1990 to January 1993 between 12 cases of acute intussusception in children with B-ultrasound, and of which 10 cases under the supervision of B-water pressurized enema. For clinical purposes in children with acute intussusception, the Japanese AlokaSSD-720B super instrument, the probe frequency of 3.5MHz, the line of direct investigation, focusing on scanning the colon rim. 12 patients with transverse section of the ultrasound images are seen concentric-like changes, the so-called target ring