Mazzaccaro D, Malacrida G, Nano G
Eur J Vasc Endovasc Surg. 2015 Jan;49(1):33-8. doi: 10.1016/j.ejvs.2014.10.005.
To analyze the variability of origin of the celiac trunk (CT), the superior mesenteric artery (SMA), the right renal artery (RRA), and the left renal artery (LRA) in terms of mutual distances, angle from the sagittal aortic axis (clock position), and ostial diameters on computed tomography angiographies (CTAs) in three groups of patients.
One hundred and fifty CTAs of 50 patients with a non-dilated thoracoabdominal aorta (group A), 50 with thoracoabdominal aneurysm (B), and 50 with infrarenal aneurysm (C) were reviewed. The measurements performed on CTAs, as well as the patients' age, sex, and body surface area, were analyzed. p values <.05 were considered statistically significant.
The clock position of the CT and the SMA, the diameters of all vessels, and the distance of the CTeSMA followed a Gaussian distribution. In contrast, the clock position of the renal vessels did not follow a normal distribution, and nor did the distances of the SMA-RRA, SMA-LRA, RRA-LRA or the distances between the renal arteries and the aortic bifurcation. The same values did not differ significantly among the three groups, with the exception of the distances between the renal arteries and the aortic bifurcation, significantly greater in group C. The clock position of the LRA and the distances of the SMA-LRA, SMA-RRA, RRA-LRA and between both renal arteries and the aortic bifurcation showed a significant correlation with the increase of aortic diameter.
The anatomic variability of the origin of both the CT and the SMA in terms of clock position and mutual distances followed a Gaussian distribution, regardless of group. The same applies to the ostial diameters of renal and visceral vessels. In contrast, the origin of the renal vessels had a statistically significant heterogeneity that seemed to be correlated with the increase of aortic diameter in the mesenteric and renal aortic region.
分析三组患者腹腔干（CT）、肠系膜上动脉（SMA）、右肾动脉（RRA）和左肾动脉（LRA）起源的变异性，包括相互距离、与主动脉矢状轴的夹角（时钟位置）以及计算机断层血管造影（CTA）上的开口直径。
回顾了50例胸主动脉未扩张患者（A组）、50例胸腹主动脉瘤患者（B组）和50例肾下动脉瘤患者（C组）的150份CTA。分析了在CTA上进行的测量以及患者的年龄、性别和体表面积。p值<0.05被认为具有统计学意义。
CT和SMA的时钟位置、所有血管的直径以及CT与SMA之间的距离呈高斯分布。相比之下，肾血管的时钟位置不呈正态分布，SMA与RRA、SMA与LRA、RRA与LRA之间的距离以及肾动脉与主动脉分叉之间的距离也不呈正态分布。除肾动脉与主动脉分叉之间的距离在C组明显更大外，三组之间的相同值无显著差异。LRA的时钟位置以及SMA与LRA、SMA与RRA、RRA与LRA之间的距离以及肾动脉与主动脉分叉之间的距离与主动脉直径的增加呈显著相关。
无论组别如何，CT和SMA起源在时钟位置和相互距离方面的解剖变异性呈高斯分布。肾血管和内脏血管的开口直径也是如此。相比之下，肾血管的起源具有统计学上显著的异质性，这似乎与肠系膜和肾主动脉区域主动脉直径的增加相关。
