Balthazar E J, Megibow A J, Siegel S E, Birnbaum B A
Radiology. 1991 Jul;180(1):21-4. doi: 10.1148/radiology.180.1.2052696.
Computed tomography (CT) was used to prospectively evaluate 100 patients with clinical indications for acute appendicitis. Examinations were performed with the terminal ileum and cecum filled with contrast material. Acute appendicitis was diagnosed when an abnormal appendix or inflammatory changes plus an appendicolith were detected. Failure to visualize an abnormal appendix or appendicolith in the presence of pericecal inflammatory changes was considered suspicious but nonspecific. CT results were correlated with surgical and pathologic results (74 patients) and other radiologic and clinical findings (26 patients). CT helped to diagnose appendicitis (64 patients) and nonspecific right lower quadrant inflammation (five patients) and to rule out appendicitis (31 patients). CT had a 98% sensitivity, an 83% specificity, and a 93% accuracy. In 17 of 31 patients without CT evidence of appendicitis, other conditions explaining their symptoms were detected. When the clinical diagnosis is in doubt, CT can be used successfully to evaluate patients with acute appendicitis.
计算机断层扫描（CT）被用于前瞻性评估100例有急性阑尾炎临床指征的患者。检查时，回肠末端和盲肠充满造影剂。当检测到阑尾异常或炎症改变加阑尾结石时，诊断为急性阑尾炎。在盲肠周围炎症改变存在的情况下未能显示异常阑尾或阑尾结石被认为可疑但不具有特异性。CT结果与手术和病理结果（74例患者）以及其他影像学和临床发现（26例患者）相关。CT有助于诊断阑尾炎（64例患者）和非特异性右下腹炎症（5例患者）并排除阑尾炎（31例患者）。CT的敏感性为98%，特异性为83%，准确性为93%。在31例无CT阑尾炎症证据的患者中，有17例检测到了解释其症状的其他病症。当临床诊断存疑时，CT可成功用于评估急性阑尾炎患者。
