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Figure 4: CT and catheter angiography of the abdomen. (a) CT angiography showing a short segment severe stenosis just beyond the origin of the left renal artery. Estimated degree of stenosis is 80% diameter. Beyond that level, the vessel returns to normal caliber (b) Catheter angiography showing significantly decreased flow through the left renal artery. (c) Catheter angiography after stent placement showing normal flow through left renal artery.

Figure 4: CT and catheter angiography of the abdomen. (a) CT angiography showing a short segment severe stenosis just beyond the origin of the left renal artery. Estimated degree of stenosis is 80% diameter. Beyond that level, the vessel returns to normal caliber (b) Catheter angiography showing significantly decreased flow through the left renal artery. (c) Catheter angiography after stent placement showing normal flow through left renal artery.