目的研究胃裸區(qū)(包括其后方、胃膈韌帶內脂肪)局部無病理改變情況下的CT表現特征。方法選擇上腹腔積液但病變未累及胃裸區(qū)的病例共30例,觀察無病理改變的胃裸區(qū)顯示率、CT表現特征; 同時對炎癥、腫瘤侵犯胃裸區(qū)的病例,觀察病理情況下胃裸區(qū)的CT表現。全部病例均采用螺旋CT增強掃描。結果上腹腔積液患者30例,CT掃描均顯示胃裸區(qū)的存在,其顯示率為100%。于胃食管連接平面開始出現胃裸區(qū),肝十二指腸韌帶、網膜孔平面胃裸區(qū)完全消失,即胃裸區(qū)終止于該平面上方; 門靜脈左支矢狀部平面胃裸區(qū)范圍最大,在該平面胃裸區(qū)左右間距(即胃膈韌帶左右層間距)平均值為(4.39±0.08)cm (3.8~5.7 cm)。急性胰腺炎侵犯胃裸區(qū)主要表現為胃裸區(qū)腫脹、增寬; 平滑肌肉瘤侵犯胃裸區(qū),腫塊與膈肌腳分界不清; 淋巴瘤、轉移性腫瘤侵犯胃裸區(qū)表現為胃裸區(qū)增厚、其內見小結節(jié)狀或腫大融合的淋巴結。結論采用螺旋CT增強掃描有助于詳細觀察胃裸區(qū)的變化,有利于腹膜后間隙疾病的全面、準確診斷,并有助于制訂詳細的手術方案。
引用本文: 李鵬,陳衛(wèi)霞,閔鵬秋. 胃裸區(qū)CT表現及其臨床應用. 中國普外基礎與臨床雜志, 2003, 10(3): 284-287. doi: 復制
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