Anwendung und Bedeutung der intravaskularen Ultraschallbildgebung. [Use and significance of intravascular ultrasonic imaging]

Détails

ID Serval
serval:BIB_03AC2724F9C5
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Anwendung und Bedeutung der intravaskularen Ultraschallbildgebung. [Use and significance of intravascular ultrasonic imaging]
Périodique
Schweizerische Rundschau fur Medizin Praxis
Auteur(s)
Delacretaz  E., Hayoz  D., Kaufmann  U., Meier  B.
ISSN
1013-2058 (Print)
Statut éditorial
Publié
Date de publication
04/1997
Volume
86
Numéro
16
Pages
655-8
Notes
English Abstract
Journal Article --- Old month value: Apr 16
Résumé
Intravascular ultrasound (IVUS) imaging of coronary arteries has recently become possible in vivo with the improvements achieved in the miniaturisation of ultrasound transducers. IVUS provides informations complementary to angiography, and is considered as the gold standard for the assessment of lumen size, plaque thickness and plaque distribution. As formerly demonstrated by pathological studies, IVUS also reveals an underestimation of plaque thickness with angiography and an incomplete assessment of the true morphologic distribution of the plaque burden. Among its clinical applications, IVUS can be used to monitor revascularisation procedures, and may provide very accurate measurements of progression or regression of coronary atherosclerosis and of the extent of posttransplant vasculopathy. IVUS was employed successfully to assess and optimize the results of percutaneous transluminal coronary angioplasty. Clinical studies have shown that the risk of restenosis is inversely proportional to the size of the postprocedural lumen. With the guidance of percutaneous transluminal angioplasty by IVUS, balloon size and inflation pressures were increased, and better results were obtained with larger lumen size in comparison to the results of the procedures assessed by angiography alone. These improvements contributed to abandon the anticoagulation after stent implantation in most cases. In spite of the valuable information provided by IVUS, its role in clinical settings should still be defined IVUS prolongs the revascularisation procedure and enhances its costs and risks. Thus, the cost effectiveness of IVUS in its clinical application should be determined by prospective studies.
Mots-clé
Angioplasty, Transluminal, Percutaneous Coronary/methods Coronary Angiography Coronary Arteriosclerosis/therapy/ultrasonography Coronary Vessels/*ultrasonography Cost-Benefit Analysis Heart Transplantation Humans Postoperative Complications/ultrasonography Stents Ultrasonography, Interventional/economics/*methods
Pubmed
Création de la notice
17/01/2008 16:38
Dernière modification de la notice
20/08/2019 12:25
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