多层计算机断层扫描显示的腹腔干及其分支的变异解剖和形态特征

S. P. Pavlov, S. E. Baibakov, E. I. Zyablova, I. G. Nosulya
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引用次数: 0

摘要

目前最常用的腹腔干(CT)分支变异分类方法有两种:N.Michels(1955 年)和 R.Uflacker(1997 年)。许多研究人员注意到了这两种分类法的不完善之处,并对每种分类法进行了补充。本文旨在确定 CT 分支的解剖变异,并对其主要分支进行形态测量。材料和方法对 700 张腹主动脉 MSCT 血管造影样本进行了分析。该研究检查了 602 名男性和 98 名女性的血管造影。使用放射科医生个人站 "Syngo.via "的数字计算机程序对 CT 血管进行可视化并测量动脉直径。结果显示根据 N. Michels 的分类,最常见的 CT 类型(77.9%)是 I 型,即肝总动脉 (CHA) 起源于 CT。其他变异的频率为 22.1%。根据 R. Uflacker 的观点,最常见的变异(90.3% 的病例)是 I 型,与 CT 的典型解剖结构相对应,起源于脾动脉、肝总动脉和胃左动脉。除了肝脏动脉盆地的主要变体和 CT 的分支类型外,我们还注意到两种分类中都未包括的其他动脉。在 48 例病例中,左膈下动脉(44 例/91.7%)、两条膈下动脉(2IPA)(3 例/6.3%)和右肝动脉(RHA)(1 例/2.1%)等血管被确定为源自 CT。结论在我们的研究过程中,我们发现了 CT 的变体,而这些变体并不包括在任何最常用的分类中:RHA 和 2IPA 从 CT 分支。CT 的三个形态参数:长度、直径和肝总动脉直径与性别有显著相关性。我们认为,所获得的 CT 变异解剖学数据将对目前的分类方法进行补充,以详细说明腹腔-肠系膜盆动脉的变异并使其客观化。
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Variant Anatomy and Morphometric Characteristics of the Celiac Trunk and its Branches According to Multislice Computed Tomography
Two classifications are currently most commonly used to classify branching variations of the celiac trunk (CT): N. Michels (1955) and R. Uflacker (1997). Many researchers note the imperfection of classifications and make additions to each of them. The aim is to determine the anatomical variants of the branching of the CT, and to perform a morphometry of it’s main branches. Material and methods. A sample of 700 MSCT angiograms of the abdominal aorta was analyzed. The study examined angiograms of 602 men and 98 women. Visualization of the vessels of the CT and measurement of the diameter of the arteries was carried out using digital computer programs of the personal station of the radiologist «Syngo.via». Results. The most common type of CT (77,9% observations), according to the classification of N. Michels, was type I, when the common hepatic artery (CHA) originated from the CT. The frequency of other variants was 22,1%. According to R. Uflacker, the most common variant (90,3% cases) was type I, corresponding to the typical anatomy of the CT, with the origin of the splenic, common hepatic and left gastric arteries. In addition to the main variants of the arterial basin of the liver and types of branching of the CT, we noted additional arteries that were not included in both classifications. In 48 cases, such vessels as the left inferior phrenic artery (44 observations / 91,7%), two inferior phrenic arteries (2IPA) (3 observations / 6,3%), and the right hepatic artery (RHA) (1 observation / 2,1%) were identified as originated from the CT. Conclusion. In the course of our study, we detected variants of CT that were not included in any of the most commonly used classifications: the RHA and 2IPA which ramified from CT. Three morphometric parameters of the CT: its length, diameter, and diameter of common hepatic artery had a significant correlation with gender. We consider that the data obtained on the variant anatomy of the CT will make additions to the current classifications in order to detail and objectify variations of the celiac-mesenteric basin arteries.
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