Abstract
Aim: The aim of the study was to map the morphometry and variability of a part of the abdominal aorta and its branches - the coeliac artery (AC), the cranial mesenteric artery (AMC) and both renal arteries (ARS, ARD). Methods: CT scans of 13 animals ((7 XY, 6 XX), weigh 28-33 kg, Přeštice black-pied breed) were evaluated.
Measurements were performed in multiplanar reconstructions (MPR), slice thickness 0.8 mm. The transverse diameter (P) of aorta (Ao), AC, AMC and ARs at the point of separation P Ao(X), the exit angle (ÚO) including, were assessed.
Results: Aorta narrowed caudally, in the segment between the AC and AR from 1.1 cm to 0.9 cm. The largest branch was the cranial mesenteric artery.
The average values of the branches root lumen diameter P (X) were: P (AC) = 0.6 cm, P (AMC) = 0.7 cm, P (ARD, ARS) = 0.5 cm. The branches departed in a caudally sharp angle: ÚO (AC) = 67.9°, ÚO (AMC) = 75.8°, ÚO (ARD) = 64.4°, ÚO (ARS) = 72.2°.
Moderately strong variability of the exit angle of the AC, and the ARS was demonstrated (coefficient of variation > 30, standard deviation > 20°). 70% of the renal arteries (N = 9) showed right-left asymmetry and exited between L2-3. In females, the right renal artery was wider (p = 0.007).
Conclusions: Our results map a part of the abdominal arteries of the domestic pig, the Přeštice black-pied breed (N = 13, both sexes, weigh 28-33 kg). We anticipate their use for the preclinical studies designing, the surgical and imaging methods training in the field of vascular surgery.