摘要：为探讨B超对急性阑尾炎术前的诊断价值，回顾性分析56例经手术和(或)病理证实的急性阑尾炎。其声像图表现：①直接征象：阑尾不同程度肿大，阑尾纵断面显示为数厘米长的腊肠样、管状、手指状或蚯蚓状的低回声或无回声区，不均质。横断面呈靶环征或圆形回声。②间接征象：阑尾内粪石并声影；阑尾炎有渗出或穿孔时周围的无回声区或有沉积物回声；脓肿形成时为右下腹混合性肿块回声；肠管扩张(特别是升结肠扩张)；回盲部肠管局限性水肿或肠系膜增厚和大网膜包裹。B超检查简便、可重复性对阑尾炎诊断有很大的实用价值，应列为首选的影像检查方法。

    中图分类号：R445.1 文献标识码：A

    文章编号：1001-5817(2000)03-0360-03

The diagnostic value of ultrasonography for acute appendicitis

Chen Wen-zhi Xie Kang-sheng Li Yan HuangYu-lian Zhou Ya-hong Shen Yi Li He-ping

    (Central Hospital of Guangdong AgricultureReclamation, Zhanjiang, Guangdong, 524002, P.R.China)

Abstract: In order toevaluate the value of preoperative sonographic diagnosis of acute appendicitis, fifty-sixproved acute appendicitis cases were retrospectively studied to estimate the diagnosticvalue of sonography. The direct sign of acute appendicitis is appendicular swelling.Ultrasonography shows low or absence echo on longitudinal section of appendix likesausage, tube, finger or earthworn. The cross section of appendix shows target-like ordisk-like echo. The indirect sign includes the stercolith in the appendix with soundshadow; periappendicular absence echo or deposit echo when appendicitis complicated withexudation or perforation; mixed swollen echo on the right hypogastric region when abscessformated; dilation of intestine (asceuding colon especially); local ileocecal edema ormesenteric thickening and encysted greater omentum. It suggested that simple andrepetitive ultrasonography have great applicable value on diagnosing appendicitis. It isconcluded that ultrasonography is the imaging method of choice for diagnosing acuteappendicitis.

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