【摘要】 目的　探讨病理情况下大网膜的CT变化能否为临床提供有价值的诊断信息。材料与方法　搜集有大网膜变化的急腹症 11例 ,非急腹症大网膜病变 4例。观察网、系膜CT变化须设置合适窗口。结果　急腹症中如腹腔脓肿、中空器官穿孔等 ,病灶周围网、系膜密度增高 ,呈“索条”或“网格”影 ;而原发大网膜肿瘤周围变化远不及急性炎症时显著。此外 ,CT能明确显示大网膜外疝内容。结论　观察网、系膜变化 ,有助于急性腹腔脓肿、中空器官穿孔、大网膜外疝CT诊断。更多还原

【Abstract】 Objective To clarify if the CT appearance of the greater omentum in acute abdomen can offer useful information for clinical diagnosis.Materials and Methods CT and surgical findings of pathologically proved greater omentum disorders in 11 cases with acute abdomen and 4 cases of non acute abdomen were analyzed. For the better visualization of the greater omentum and mesentery on CT the window level should be set to 0 HU.Results In acute abdomen, such as abdominal abscess and hollow viscera perforation, the adjacent greater omentum and mesentery showed an increase in density. CT could well demonstrate the contents of the external hernia of the greater omentum.Conclusion Observation of the changes of the greater omentum and mesentery on CT is helpful for the diagnosis of acute appendical abscess, hollow viscera perforation and external hernia of the greater omentum.更多还原