In-vivo-vermessung koronarer stents in ganzen gefäßsegmenten mittels dreidimensionaler intravaskulärer ultraschallanalysen: Eine Übersicht

Translated title of the contribution: In-vivo measurement of coronary stent dimensions throughout entire vascular segments with quantitative three-dimensional intravascular ultrasound: A review

C. Von Birgelen* (Corresponding Author), M. Haude, D. Baumgart, Matthias Jasper, J. Brinkhoff, H. Wieneke, D. Welge, C. Altmann, S. Sack, R. Erbel

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The implantation of metallic endoprostheses (i. e., stents) is a rapidly expanding interventional technique for the catheter-based therapy of symptomatic patients with significant coronary stenoses. But stents are frequently radiolucent and after deployment difficult to appreciate on fluoroscopy and coronary angiograms obtained by x-ray. Intravascular ultrasound (IVUS), on the other hand, permits detailed examination of coronary stent apposition and expansion in vivo. Recently, automated systems for three-dimensional (3-D) reconstruction and analysis of IVUS images have been developed. The initial experience with 3-D IVUS in coronary stenting is positive. Different technical approaches demonstrated superiority of 3-D IVUS in detecting both, the site of the smallest in-stent lumen cross-sectional area and sub-optimal results following stent deployment. In-addition, the restenosis process inside stents can excellently be studied with IVUS. In-stent neointimal ingrowth can be exmined with a computerized 3-D contour detection system that permits off-line detection of the neointimal leading edge and the coronary stent struts. This 3-D approach provides computerized measurement of neointimal volume, based on a large number of IVUS images. Considering the current trend towards more complex coronary stenting procedures, a feasible and reliable 3-D analysis tool for clinical on-line assessment after stent deployment may also be very useful.

Translated title of the contributionIn-vivo measurement of coronary stent dimensions throughout entire vascular segments with quantitative three-dimensional intravascular ultrasound: A review
Original languageGerman
Pages (from-to)827-831
Number of pages5
JournalMaterialwissenschaft und Werkstofftechnik
Volume30
Issue number12
DOIs
Publication statusPublished - 1 Dec 1999
Externally publishedYes

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