Multidetector-row computed tomography for evaluating the branching angle of the celiac artery: a descriptive study

被引:4
作者
Tokue, Hiroyuki [1 ,2 ]
Tokue, Azusa [1 ]
Tsushima, Yoshito [1 ]
机构
[1] Gunma Univ Hosp, Dept Diagnost & Intervent Radiol, Maebashi, Gunma 3718511, Japan
[2] Maebashi Red Cross Hosp, Dept Radiol, Maebashi, Gunma, Japan
关键词
Multidetector-row computed tomography; Maximum intensity projection; Celiac artery; Branching angle; Intra-arterial hepatic port system; INTRAARTERIAL CHEMOTHERAPY; PERCUTANEOUS IMPLANTATION; ARCUATE LIGAMENT; PLACEMENT; ANGIOGRAPHY; SYSTEM;
D O I
10.1186/1471-2342-12-36
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
Background: We performed this study in order to investigate the shape of the origin of the celiac artery in maximum intensity projection (MIP) using routine 64 multidetector-row computed tomography (MDCT) data in order to plan for the implantation of an intra-arterial hepatic port system. Methods: A total of 1,104 patients with hepatocellular carcinoma were assessed with MDCT. In the definition of the branching angle, the anterior side of the abdominal aorta was considered the baseline, and the cranial and caudal sides were designated as 0 and 180 degrees, respectively. The angles between 0 and 90 degrees and between 90 and 180 degrees from the cranial side were considered upward and downward, respectively, and the branching angle of the celiac artery was classified every 30 degrees. The subclavian arterial route was used for the implantation of an intra-arterial hepatic port system in patients with branching angles of 150 degrees or more (sharp downward). Results: The median branching angle was (median +/- standard deviation) 135 +/- 23 (range, 51-174) degrees. The branching was upward in 77 patients (7%) and downward in 1,027 patients (93%). The branching was downward with an angle of 120 to150 degrees in most patients (n = 613). The branching was sharply downward with an angle of 150 degrees or more in 177 patients (16%). A total of 10 patients were referred for interventional placement of an intra-arterial hepatic port system. The subclavian arterial route was used for implantation of an intra-arterial hepatic port system in 2 patients with sharp downward branching. Conclusions: The branching angle of the celiac artery can be easily determined by the preparation of MIP images from routine MDCT data. MIP may provide useful information for the selection of the catheter insertion route in order to avoid a sharp branching angle of the celiac artery.
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