疑急性阑尾炎螺旋ＣＴ平扫对连续300例病人的诊断。对300例被怀疑急性阑尾炎的患者,进行螺旋ＣＴ薄层扫描,由上腹部至耻骨联合,单次憋气,5ｍｍ准直器,ｐｉｔｃｈ为1.6,新有病例均未口服、静脉或直肠灌注造影剂。诊断急性阑尾炎的标准包括阑尾肿大(6ｍｍ)和阑尾周围炎症,ＣＴ诊 Suspected acute appendicitis spiral CT plain diagnosis of 300 consecutive patients. Thirty patients suspected of acute appendicitis underwent spiral CT thin-layer scans from the upper abdomen to the pubic symphysis, a single breath, 5mm collimator, a pitch of 1.6, and no new cases of oral, intravenous or rectal perfusion of contrast media . Criteria for the diagnosis of acute appendicitis include an enlarged appendix (6 mm) and inflammation around the appendix, a CT diagnosis