The variations of the middle colic vein tributaries: depiction by three-dimensional CT angiography

被引:10
作者
Maki, Yumi [1 ]
Mizutani, Masaru [2 ]
Morimoto, Mamoru [3 ]
Kawai, Tatsuya [1 ]
Nakagawa, Motoo [1 ]
Ozawa, Yoshiyuki [1 ]
Takeuchi, Mitsuru [1 ]
Maki, Hiroyuki [1 ]
Kurosaka, Kenichiro [2 ]
Shibamoto, Yuta [1 ]
机构
[1] Nagoya City Univ, Grad Sch Med Sci, Dept Radiol, Nagoya, Aichi, Japan
[2] Kariya Toyota Gen Hosp, Dept Radiol, Kariya, Aichi, Japan
[3] Nagoya City Univ, Grad Sch Med Sci, Dept Dept Gastroenterol Surg, Nagoya, Aichi, Japan
关键词
VASCULAR ANATOMY; COLON; MESOCOLON; CANCER;
D O I
10.1259/bjr.20150841
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Objective: Laparoscopic transverse colectomy is challenging owing to technical difficulties in identifying an adequate dissection plane, ligating and dissecting lymph nodes around the middle colic vessels. One of the reasons for the technical difficulties is the complex relationship between the middle colic vein (MCV) and its tributary. So, defining the venous anatomy around the MCV before laparoscopic surgery seems important to avoid massive bleeding. The purpose of this study was to evaluate the depiction rate and variation of the MCV and its tributaries on three-dimensional CT angiography (3DCTA). Methods: This study included 331 patients (203 males and 128 females) scheduled for laparoscopic surgery between June 2010 and April 2012. Most of the patients had gastric or colorectal cancer. Patients who needed emergency surgeries for obstruction or perforation were excluded. 3DCTA with an i.v. contrast medium was performed immediately following the administration of effervescent granules or room air insufflation. We assessed variations of the MCV tributaries using transaxial, multiplanar reconstructed images and volume-rendering images. Results: The MCV could be identified in all patients. The MCVs drained into the superior mesenteric vein in 62.5% of patients, gastrocolic trunk of Henle in 29.3% of patients, inferior mesenteric vein in 4.8% of patients, splenic vein in 2.7% of patients and jejunal vein in 0.6% of patients. Conclusion: 3DCTA is useful in evaluating the anatomic variants of the MCV in pre-operative planning for laparoscopic surgery. Advances in knowledge: Use of 3DCTA for the recognition of the anatomic complexity around the MCV and its tributary plays an important role in pre-operative planning for optimal patient outcome.
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页数:7
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