PMC5672997_01
The totally occluded distal aorta right after the origin of the IMA which had a 95% ostial occlusion.
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AARO revealed a totally occluded distal aorta right after the origin of the inferior mesenteric artery (IMA) which had a 95% ostial lesion; however, it still supplied perfusion to most of the collaterals in lower extremities (Figure 1). A CT angiography of the aorta and lower extremities was ordered to better evaluate the distal circulation.
IMA below the level of its ostium and patent (red arrow); however, infra-renal aorta is completely occluded below the ostium of the IMA (blue arrow).
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The ostium of the IMA had severe stenosis of 95%, and the aorta distal to IMA was completely occluded (Figures 2 and 3).
The coronal section illustrates complete occlusion of the infra-renal aorta.
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The ostium of the IMA had severe stenosis of 95%, and the aorta distal to IMA was completely occluded (Figures 2 and 3).