Anatomical variations of the coeliac trunk and the mesenteric arteries evaluated with 64-row CT angiography
Anatomical variations of the coeliac trunk and the mesenteric arteries evaluated with 64-row CT angiography
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DOI：
10.1007/s11547-007-0200-2
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发表时间：
2007-10-01
影响因子：
8.9
通讯作者：
Laghi, A.
中科院分区：
文献类型：
--
作者：
Ferrari, R.;De Cecco, C. N.;Laghi, A.
目的。本研究通过评价腹主动脉、肠系膜动脉和侧支起始部的解剖变异发生率，评价螺旋CT血管成像在血管解剖学研究中的准确性。对60例患者在注射含碘非离子造影剂(4ml/S)后，采用美国密尔沃基通用电气医疗公司的-ROW CTA，准直0.625 mm。排除标准是存在任何可能影响正常血管解剖的病理情况。56.7%的病例腹主干三叉处正常。60%的患者肝总动脉正常。胰管十二指肠下动脉缺如或不显影的占8.3%，其中双干占5%，共同干占83.3%，单支占3.3%。空肠和回肠动脉最少6支，最多13支，平均8.7+/-1.34支。Riolan拱廊可评价的比例为31.7%，发展的比例为68.4%。序列CTA可显示与其他技术难以识别的小血管和副动脉。这项技术的高灵敏度使我们能够观察到血管异常的发生率高于文献报道的水平。
Purpose. This study was undertaken to evaluate the accuracy of 64-row computed tomography angiography (CTA) in the study of vascular anatomy by assessing the incidence of anatomical variations of the origin of the coeliac trunk, mesenteric arteries and collateral branches.Materials and methods. Sixty patients were evaluated with 64-row CTA (VCT, General Electric Healthcare, Milwaukee, WI, USA) with a collimation of 0.625 mm after the injection of iodinated nonionic contrast material (4 ml/s). Exclusion criteria were the presence of any pathological condition likely to affect normal vascular anatomy.Results. The coeliac trunk had a normal trifurcation in 56.7% of cases. The common hepatic artery was normal in 60% of patients. The inferior pancreaticoduodenal arteries were either absent or not assessable in 8.3% of cases and there was a double trunk in 5%, a common trunk in 83.3% and a single vessel in 3.3%. The number of jejunal and ileal arteries ranged from a minimum of six to a maximum of 13 (mean value 8.7 +/- 1.34). The Riolan arcade was assessable in 31.7% and developed in 68.4% of these.Conclusions. The 64-row CTA enables visualisation of small vessels and accessory arteries that are difficult to identify with other techniques. The technique's high sensitivity allowed us to observe that the prevalence of vascular abnormalities is higher than that reported in the literature.