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. 2018 Oct 12;14:1993–2002. doi: 10.2147/TCRM.S177757

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© 2018 Zha et al. This work is published and licensed by Dove Medical Press Limited

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Measurement of the local and global anatomy of the descending aorta (TR, OR and TI).

Notes: (A) Sagittal computed tomography view before TEVAR showing the size of the presumed proximal landing zone (X_PRO) and the presumed distal landing zone (X_A). (B) Maximal diameter and area of X_A. (C) TI =b/a, defined as the length of the midline (b) within the aorta divided by the linear distance (a) between the left subclavian artery and the celiac trunk.

Abbreviations: TR, taper ratio; OR, oversizing ratio of the stent graft; TI, tortuosity index; TEVAR, thoracic endovascular aortic repair; Max, maximal; diam, diameter.