孟钺
Abstract
肠梗阻是外科常见的急腹症之一,其发病率仅次于急性阑尾炎及胆道疾病,居急腹症的第3位.腹部平片是腹部影像诊断最常用的方法,但对于绞窄性、肿瘤引起的梗阻,平片缺乏特异征象,其应用的价值受到限制.CT为断层扫描,没有重叠,密度分辨率高,在急腹症的检查中越来越受到重视[1]。
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肠梗阻是外科常见的急腹症之一,其发病率仅次于急性阑尾炎及胆道疾病,居急腹症的第3位.腹部平片是腹部影像诊断最常用的方法,但对于绞窄性、肿瘤引起的梗阻,平片缺乏特异征象,其应用的价值受到限制.CT为断层扫描,没有重叠,密度分辨率高,在急腹症的检查中越来越受到重视[1]。
Key concepts: Value (mathematics), Medicine, Radiology, Mathematics, Statistics