In:
Journal of Endovascular Therapy, SAGE Publications, Vol. 22, No. 5 ( 2015-10), p. 765-769
Abstract:
Purpose: To analyze the movement of the aorta in the craniocaudal direction (through-plane movement) during the cardiac cycle at several levels to determine any potential impact on endovascular aneurysm repair (EVAR) of abdominal aortic aneurysm (AAA). Methods: For this study, 30 patients (median age 73.0 years; 27 men) with an infrarenal AAA were randomly selected from a prospectively maintained EVAR database. All patients had undergone preoperative electrocardiogram-gated computed tomography angiography consisting of 8 phases. After semiautomatic segmentation, a 3-dimensional location probe was placed in the center of the aorta (center point) on the orthogonal slices at 12 different levels along the aorta and iliac arteries for all 8 phases. Movement of the center point during the cardiac cycle was analyzed for each level. Values are given as the median and interquartile range (IQR). Results: The median through-plane movement of all levels was 3.0 mm (IQR 2.8–3.2) and appeared to be lower in the region of the celiac and renal arteries: 2.6 mm (IQR 1.7–3.1) at 3 cm proximal to the most distal renal artery and 2.4 mm (IQR 1.9–2.9) at 1 cm distal to the most distal renal artery, respectively. The thoracic part of the aorta showed the largest through-plane motion: 4.1 mm (IQR 2.7–4.6). Conclusion: This study quantifies aortic through-plane motion in the craniocaudal direction. Since through-plane movement appears to be limited, findings of previous studies investigating pulsatile in-plane distension seem to be representative for aortic distension.
Type of Medium:
Online Resource
ISSN:
1526-6028
,
1545-1550
DOI:
10.1177/1526602815601402
Language:
English
Publisher:
SAGE Publications
Publication Date:
2015
detail.hit.zdb_id:
2049858-5
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