Fujimoto T, Fukuda T, Matsunaga N, Kohzaki S, Hirao K, Nagayoshi K, Takeda H, Isomoto I, Uetani M, Hayashi K
Department of Radiology, Nagasaki University, School of Medicine.
Nihon Igaku Hoshasen Gakkai Zasshi. 1993 Jun 25;53(6):621-7.
The CT findings of invaginated mesentery in adult intussusception were analyzed in 12 patients (three patients with four small bowel intussusceptions and nine patients with nine large bowel intussusceptions). In all small bowel intussusceptions, the neck was located near the superior mesenteric artery and vein (SMA & SMV) and showed a medial opening, and the vessels in the neck showed a continuity to the left side of SMA & SMV. In most of the large bowel intussusceptions, the neck was located distant from SMA & SMV, and the vessels in the neck did not show continuity to SMA & SMV. The difference in CT findings between small and large bowel intussusception is attributed to the difference in mesenteric anatomy; the small bowel and its mesentery move freely in the peritoneal cavity, whereas the large bowel is partially fixed to the retroperitoneum.
对12例成人肠套叠（3例发生4次小肠套叠，9例发生9次大肠套叠）中肠系膜套入的CT表现进行了分析。在所有小肠套叠中，套叠颈部位于肠系膜上动静脉（SMA & SMV）附近，呈内侧开口，颈部血管与SMA & SMV左侧相连。在大多数大肠套叠中，套叠颈部远离SMA & SMV，颈部血管与SMA & SMV不连续。小肠和大肠套叠CT表现的差异归因于肠系膜解剖结构的不同；小肠及其系膜在腹腔内可自由移动，而大肠部分固定于腹膜后。
