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Imaging In-Stent Restenosis: An Inexpensive, Reliable, and Rapid Preclinical Model

Authors
Journal
Journal of Visualized Experiments
1940-087X
Publisher
MyJoVE Corporation
Publication Date
Issue
31
Identifiers
DOI: 10.3791/1346
Keywords
  • Medicine
Disciplines
  • Biology
  • Medicine

Abstract

Preclinical models of restenosis are essential to unravel the pathophysiological processes that lead to in-stent restenosis and to optimize existing and future drug-eluting stents. A variety of antibodies and transgenic and knockout strains are available in rats. Consequently, a model for in-stent restenosis in the rat would be convenient for pathobiological and pathophysiological studies. In this video, we present the full procedure and pit-falls of a rat stent model suitable for high throughput stent research. We will show the surgical procedure of stent deployment, and the assessment of in-stent restenosis using the most elegant technique of OCT (Optical Coherence Tomography). This technique provides high accuracy in assessing plaque CSAs (cross section areas) and correlates well with histological sections, which require special and time consuming embedding and sectioning techniques. OCT imaging further allows longitudinal monitoring of the development of in-stent restenosis within the same animal compared to one-time snapshots using histology.

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