Images in cardiovascular medicine. Multislice spiral computed tomography for in-stent restenosis.

Abstract

A 72-year-old man was admitted for recurrent episodes of chest pain 3 months after stent deployment in the left anterior descending (LAD) artery. The patient underwent a computerized tomographic (CT) examination of the thorax with a multislice spiral CT scanner (MSCT) (Somatom Volume Zoom, Siemens). A dynamic study was performed with acquisition of 20 scans at the level of the LAD distal to the stented segment during injection of 20 mL of nonionic contrast medium (370 mgI/mL); the resultant time-density curves were suggestive of high-grade stenosis (Figure 1A). Thereafter, a …