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Fig. 1 Schematic drawing showing points at which diameter and length were
measured by both MR angiography and digital subtraction angiography in
patients with infrarenal aortic aneurysm. (1) Diameter of aorta at renal
artery ostium, (2) diameter of aorta at extent of aneurysm, (3) diameter of
aorta 10 mm above aortic bifurcation, (4) maximum diameter of right common
iliac artery, (5) proximal diameter of left common iliac artery, (6) proximal
diameter of right external iliac artery, (7) maximum diameter of left external
iliac artery, (8) length of proximal neck, (9) length of infrarenal aorta,
(10) maximum diameter of right common iliac artery, and (11) maximum diameter
of left external iliac artery.