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Shrinkage of the distal renal artery 1 year after stent placement as evidenced with serial intravascular ultrasound

Departments of ¹ Radiology, ² Cardiology and ³ Internal Medicine, Erasmus Medical Center, Rotterdam and ⁴ Interuniversity Cardiology Institute of The Netherlands, The Netherlands

View larger version (121K): [in a new window]   Figure 1. Intravascular ultrasound and angiographic images (a, c) after stent placement and (b, d) at 1 year follow-up. The inner contour of the intravascular images presents the lumen area, the outer contour the stent or vessel area. At follow-up, plaque accumulation was evidenced in the stent (b), whereas the distal reference cross-section showed shrinkage without plaque accumulation (d).

View larger version (17K): [in a new window]   Figure 2. Renal vessel diameter (RVD) of the affected side before and after stent placement and at follow-up, expressed as percentage of the contralateral artery diameter. The relative diameter at follow-up was significantly smaller than pre-interventional values. Mean±standard error of the mean are indicated.