Computer-assisted study of the axial orientation and distances between renovisceral arteries ostia

Abstract

Our results illustrate aortic elongation with ageing and high anatomical variability of renal arteries. Our findings are complementary to anatomical features previously published and might contribute to enhance endovascular procedures safety and efficacy for vascular surgeons and interventional radiologists.

Normal Distance Measurements Between the Origins of the Major Branches of the Abdominal Aorta on Computed Tomography Angiography in Children

“…Although not statistically significant, these distances were slightly longer among females probably due to the fact that girls in the pubertal and prepubertal periods tend to be taller than the boys. These findings were consistent with previously published results 8,14 .…”

“…Our distance measurements were more than 20% lower than those reported in adults 9,14 . In the current study, the origin of the RRA was higher than LRA, which is in agreement with previous reports on adults 8,16 .…”

“…The current study is the initial and unique imaging study to evaluate the vascular distances in children according to their age and gender. The mean distances between the origins of the CTR-SMA, CTR-RRA, CTR-LRA, and CTR-IMA were between 20% and 30% lower than those reported in adults [7][8][9]13 . Moreover, these distances increased significantly with age possibly related to aortic elongation with the age and body height of the children.…”

“…A cadaveric study, carried out by Ozan et al 7 , reported the mean distance between CTR and SMA, RRA, and LRA as 18.0, 30.0, and 33.2 mm, respectively. According to Lawton et al 8 , the average CTR-SMA, CTR-RRA, and CTR-LRA distances on MDCT were 16.7±5.0, 30.7±7.9, and 30.5±7.7 mm, respectively. Arslan and Karacan 9 reported the mean distances for CTR-SMA, CTR-RRA, CTR-LRA, and CTR-IMA as 15.08±4.36, 30.35±9.17, 33.49±7.80, and 89.00±1.42 mm, respectively.…”

Things may not go as planned: The role of aortoiliac dilation and elongation during the estimation vascular structures' anatomical course

“…Aortic remodeling with ageing and important heterogeneity of visceral vessels distribution should be carefully studied in preoperative course and the patients must be evaluated by himself' measurements which may be variated by various factors such as age, hypertension, atherosclerosis and genetic ( Lawton et al, 2016 ). Kornreich et al remarked that the positions of the aortic branching (as well as common iliac bifurcation) and venous confluence showed a highly significant downward shift with increasing age and the shift was more pronounced in women ( Kornreich et al, 1998 ).…”