Zusammenfassung
Die sozioökonomische Bedeutung der koronaren Herzkrankheit und der Wunsch nach nichtinvasiver
Diagnostik möglichst ohne ionisierende Strahlen sind Motive für kardiale Anwendungen
der CT und MRT. Noch vor wenigen Jahren war eine Koronarangiographie mit der CT undenkbar,
heute ist sie bei ausgewählten Fragestellungen bereits Routine. Die MRT ist Referenzstandard
für zahlreiche Funktionsparameter wie Pumpfunktion, Auswurffraktion, Ventrikelvolumina
und Schlagvolumen. Die Vitalität des Herzmuskels wird mit höchster Ortsauflösung zuverlässig
beurteilt. Die Perfusionsuntersuchung ist ebenfalls mit der MRT möglich, muss allerdings
noch validiert werden.
Dieser Artikel gibt eine Übersicht über klinische Fragestellungen, gegenwärtige und
zukünftige Anwendungen sowie Grenzen der kardialen CT und MRT bei der Diagnostik der
koronaren Herzkrankheit.
Abstract
The socioeconomic importance of coronary artery disease and the desire for noninvasive
imaging with less or no ionizing radiation are incentives for computed tomography
(CT) and magnetic resonance imaging (MRI) of the heart. Coronary arteriography with
CT is now routine for selected clinical questions. MRI is the gold standard for analyzing
several functional parameters, such as pump function, ejection fraction, ventricular
volumes and stroke volumes. It is a robust tool for imaging myocardial viability at
high spatial resolution. Moreover, perfusion imaging with MRI is possible, but still
requires validation in larger series. This article reviews clinical applications,
limitations and future aspects of cardiac CT and MRI in the diagnosis of coronary
artery disease.
Key Words
Coronary artery disease - Computed tomography - Magnetic resonance imaging
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Dr. med. PD Jens Bremerich
Departement Medizinische Radiologie, Universitätsspital Basel
Petersgraben 4 · 4031 Basel · Schweiz
Phone: +41 612652525
Fax: +41 612654354
Email: Jens.Bremerich@unibas.ch
