Aortic curvature as a predictor of intraoperative type Ia endoleak

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Aortic curvature as a predictor of intraoperative type Ia endoleak Richte C.L. Schuurmann, MS, Kenneth Ouriel, MD, Bart E. Muhs, MD, PhD, William D. Jordan, MD, Richard L. Ouriel, BS, Johannes T. Boersen, MS, Jean-Paul P.M. de Vries, MD, PhD Journal of Vascular Surgery Volume 63, Issue 3, Pages 596-602 (March 2016) DOI: 10.1016/j.jvs.2015.08.110 Copyright © 2016 Society for Vascular Surgery Terms and Conditions

Fig 1 The six aortic segments over which the maximum and average aortic curvatures are calculated. Three main segments are anatomically defined: entire aortic neck, aneurysm sac, and terminal aorta (yellow). The aortic neck is divided into three segments: suprarenal, juxtarenal, and infrarenal aortic neck (green). Journal of Vascular Surgery 2016 63, 596-602DOI: (10.1016/j.jvs.2015.08.110) Copyright © 2016 Society for Vascular Surgery Terms and Conditions

Fig 2 Example of curvature over the center lumen line (CLL) of a patient. A, A three-dimensional view of the CLL is shown with color-coded curvature over the entire aortoiliac trajectory with anatomic landmarks (red dots): lowest renal artery, distal end of the aortic neck, and bifurcation. B, Curvature over the same trajectory (left is cranial, right is caudal). The six segments are shown between the grey lines. The locations of the lowest renal artery (Baseline), the distal end of the aortic neck (Neck), and the bifurcation (Bifurcation) are shown in red. Journal of Vascular Surgery 2016 63, 596-602DOI: (10.1016/j.jvs.2015.08.110) Copyright © 2016 Society for Vascular Surgery Terms and Conditions

Fig 3 Receiver operating characteristic (ROC) curve of the individual variables included in the logistic regression model and the predicted probability of the final model. The model provides better sensitivity and specificity than any of the individual variables. Journal of Vascular Surgery 2016 63, 596-602DOI: (10.1016/j.jvs.2015.08.110) Copyright © 2016 Society for Vascular Surgery Terms and Conditions

Fig 4 Cutoff values for average curvature over the juxtarenal aortic neck (21 m−1), aneurysm sac (25 m−1), and terminal aorta (28 m−1). Journal of Vascular Surgery 2016 63, 596-602DOI: (10.1016/j.jvs.2015.08.110) Copyright © 2016 Society for Vascular Surgery Terms and Conditions