Neointimal Hyperplasia in Carotid Stent Detected With Multislice Computed Tomography
The latest generation of 16-row multislice computed tomography (MSCT) scanner offers high temporal and submillimeter spatial resolution, which allows the visualization of carotid artery atherosclerosis.
At present, carotid artery obstructions are increasingly treated with stent implantation. However, in-stent restenosis may occur within 6 months after stent implantation. MSCT allows the presence and extent of intimal hyperplasia to be monitored.
A 65-year-old symptomatic man with high-grade right carotid artery stenosis underwent wall stent implantation. The stent was positioned in the common carotid artery and internal carotid artery. After 11 months, the patient underwent 16-row MSCT (Sensation 16, Siemens Medical Solutions, Forchheim, Germany) (Figure). A rim of in-stent neointimal hyperplasia was shown, demonstrating the feasibility of using noninvasive MSCT to image in-stent neointimal hyperplasia. The density of the tissue was 75.6±5.6 Hounsfield units, which suggested the presence of fibrotic tissue.
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The editor of Images in Cardiovascular Medicine is Hugh A. McAllister, Jr, MD, Chief, Department of Pathology, St Luke’s Episcopal Hospital and Texas Heart Institute, and Clinical Professor of Pathology, University of Texas Medical School and Baylor College of Medicine.
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