通过计算机断层扫描血管造影术评估肠系膜动脉血管系统及其对结直肠癌手术的意义。
Evaluation of the mesenteric arterial vasculature by computed tomography angiography and its implications for colorectal cancer surgery.
作者信息
Castro Marcelo, Cornejo Javiera, Acuña Mauricio, Naim Laura, Dorado José Vía, Rodríguez Lía, Aguirre Sebastián, Herquiñigo David
机构信息
Department of Radiology, Division of Abdominal Imaging, INDISA Clinic, Santiago, Chile.
Universidad Andrés Bello School of Medicine, Santiago, Chile.
出版信息
Radiol Bras. 2024 May 7;57:e20230099. doi: 10.1590/0100-3984.2023.0099. eCollection 2024 Jan-Dec.
OBJECTIVE
To determine the branching patterns of the inferior mesenteric artery (IMA) and to describe the clinical applicability of computed tomography (CT) angiography in the evaluation of these vessels to facilitate the planning of colorectal cancer surgery.
MATERIALS AND METHODS
We included 100 patients who underwent CT angiography of the abdomen and pelvis. The branching patterns of the IMA were examined and classified as type 1 (bifurcated), including 1A (sigmoid and left colic arteries arising from a common trunk), 1B (sigmoid and superior rectal arteries arising from a common trunk) and 1C (sigmoid arteries arising from both trunks); type 2 (trifurcated); and type 3 (no left colic branch).
RESULTS
Among the 100 patients evaluated, we found the variant to be type 1A in 9%, type 1B in 47%, type 1C in 24%, type 2 in 16%, and type 3 in 4%.
CONCLUSION
Preoperative CT angiography for evaluating the IMA branching pattern could inform decisions regarding the surgical approach to colorectal cancer.
目的
确定肠系膜下动脉（IMA）的分支模式，并描述计算机断层扫描（CT）血管造影在评估这些血管中的临床适用性，以促进结直肠癌手术的规划。
材料与方法
我们纳入了100例行腹部和盆腔CT血管造影的患者。检查IMA的分支模式并分类为1型（分叉型），包括1A（乙状结肠动脉和左结肠动脉起源于共同主干）、1B（乙状结肠动脉和直肠上动脉起源于共同主干）和1C（乙状结肠动脉分别起源于两个主干）；2型（三分叉型）；3型（无左结肠分支）。
结果
在评估的100例患者中，我们发现1A 型变异占9%，1B型占47%，1C型占24%，2型占16%，3型占4%。
结论
术前CT血管造影评估IMA分支模式可为结直肠癌手术方式的决策提供依据。
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