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. 2023 May 26;108(9):1118–1131. doi: 10.1113/EP090816

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© 2023 The Authors. Experimental Physiology published by John Wiley & Sons Ltd on behalf of The Physiological Society.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Clinical presentation of an abdominal aortic aneurysm (AAA). (a) Surgical appearance of a large (8.5‐cm‐diameter) infrarenal AAA during open transperitoneal repair. (b) Anatomical classification of AAAs: i, infrarenal AAA; ii, juxtarenal AAA; iii, suprarenal AAA; iv, type IV thoracoabdominal aortic aneurysm. (c) Appearance on ultrasound (transverse plane), enabling assessment of anteroposterior (i) and transverse (ii) diameters. (d) Coronal maximum‐intensity projection (i) and three‐dimensional reformat (ii) of an AAA (5.5 cm in diameter). Note the adequate length of the iliac arteries and the long infrarenal neck below the renal arteries, highlighting suitability for endovascular repair. (d) Adapted from (Swerdlow et al., 2019).