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. 2006 Jan 28;12(4):553-5.
doi: 10.3748/wjg.v12.i4.553.

Preoperative assessment of vascular anatomy of inferior mesenteric artery by volume-rendered 3D-CT for laparoscopic lymph node dissection with left colic artery preservation in lower sigmoid and rectal cancer

Michiya Kobayashi  1 , Satoshi Morishita, Takehiro Okabayashi, Kana Miyatake, Ken Okamoto, Tsutomu Namikawa, Yasuhiro Ogawa, Keijiro Araki
Affiliations

Preoperative assessment of vascular anatomy of inferior mesenteric artery by volume-rendered 3D-CT for laparoscopic lymph node dissection with left colic artery preservation in lower sigmoid and rectal cancer

Michiya Kobayashi et al. World J Gastroenterol. .

Abstract

Aim: To determine the distance between the branching point of the left colic artery (LCA) and the inferior mesenteric artery (IMA) by computed tomography (CT) scanning, for preoperative evaluation before laparoscopic colorectal operation.

Methods: From February 2004 to May 2005, 100 patients (63 men, 37 women) underwent angiography performed with a 16-scanner multi-detector row CT unit (Toshiba, Aquilion 16). All images were analyzed on a workstation (AZE Ltd, Virtual Place Advance 300). The distance from the root of the IMA to the bifurcation of the LCA was measured by curved multi-planar reconstruction on a workstation.

Results: The IMA could be visualized in all the cases, but the LCA was missing in two patients. The mean distance from the root of the IMA to the root of the LCA was 42.0 mm (range, 23.2-75.0 mm). There were no differences in gender, arterial branching types, body weight, height, and body mass index.

Conclusion: Volume-rendered 3D-CT is helpful to assess the vascular branching anatomy for laparoscopic surgery.

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Figures

Figure 1
Figure 1
The branching types of IMA, LCA and SA. Type A: the three arteries branch off from the same point; Type B: SA branches off from LCA; and Type C: SA branches off from SRA.
Figure 2
Figure 2
The distance from IMA root to LCA root does not correlate with patient’s height (A), weight (B), or BMI (C).
See this image and copyright information in PMC

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