Sarah Geisbüsch, MD, Deborah Schray, Moritz S

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Presentation transcript:

Imaging of vascular remodeling after simulated thoracoabdominal aneurysm repair Sarah Geisbüsch, MD, Deborah Schray, Moritz S. Bischoff, MD, Hung-Mo Lin, ScD, Randall B. Griepp, MD, Gabriele Di Luozzo, MD The Journal of Thoracic and Cardiovascular Surgery Volume 144, Issue 6, Pages 1471-1478 (December 2012) DOI: 10.1016/j.jtcvs.2012.08.062 Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 Computed tomographic image showing the anatomy of the anterior spinal artery and epidural arcades. The main trunks of the segmental arteries (1) feed the anterior spinal artery (2) through the anterior radicular–medullary artery (3), and give off branches to the epidural arcades (4). The Journal of Thoracic and Cardiovascular Surgery 2012 144, 1471-1478DOI: (10.1016/j.jtcvs.2012.08.062) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Vasculature of the spinal cord and the arterial network within the paraspinous muscles. The segmental artery (2) arises from the aorta (1) and runs around the vertebral body, connecting to the anterior spinal artery (3) through the anterior radicular–medullary arteries. Note the extensive network within the paraspinous muscle (4) and its interconnections with the segmental arteries. The Journal of Thoracic and Cardiovascular Surgery 2012 144, 1471-1478DOI: (10.1016/j.jtcvs.2012.08.062) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 3 Computed tomographic image of the arterial vessel system of the entire pig. Bones, intestines, and other tissues were extracted from the image. A, B, and C show examples of vessel casting for a native pig at 48 hours and at 120 hours after segmental artery ligation, respectively. A frame around the internal thoracic artery (a) and around the iliolumbar vessel (b) was cropped, and vessel density was compared between the groups. An impressive increase in density of small vessels could be seen, but no statistically significant differences could be demonstrated with the small number of pigs examined at each time point. The Journal of Thoracic and Cardiovascular Surgery 2012 144, 1471-1478DOI: (10.1016/j.jtcvs.2012.08.062) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 4 A, Analyzing the area around the right internal thoracic artery with the beginning of the bifurcation acting as the midpoint of the left side of the 568 × 365 rectangle. B, Analyzing the area around the right external iliac artery with the 442 × 227 rectangular frame being just above the external iliac artery and the right corner meeting the right common iliac artery. The images from all 4 pigs in each group are shown in 1 horizontal row. There is 1 pig in the group of native pigs and 1 pig in the 120-hour pigs that did not show results consistent with the others, pointing to likely interindividual variability in the response of the collateral network to segmental artery sacrifice. The Journal of Thoracic and Cardiovascular Surgery 2012 144, 1471-1478DOI: (10.1016/j.jtcvs.2012.08.062) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions