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01.04.2012 | Diagnostische Elektrophysiologie und Devices

Anwendung der Magnetokardiographie in der klinischen Kardiologie

Aktueller Stand und Ausblick in die Zukunft

verfasst von: B. Leithäuser, F. Jung, Prof. (ROK) Dr. med. habil. J.W. Park

Erschienen in: Die Kardiologie | Ausgabe 2/2012

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Zusammenfassung

Die Magnetokardiographie (MKG) ist eine berührungs- und strahlungsfreie, nichtinvasive Methode zur Erfassung der elektromagnetischen Aktivität des Herzens. Theoretische Gesichtspunkte und vergleichende Untersuchungen deuten auf einen unterschiedlichen Informationsgehalt von MKG und Elektrokardiogramm (EKG) hin. Obwohl eine Vielzahl von Fragestellungen der kardialen Elektrophysiologie und Pathophysiologie durch magnetokardiographische Untersuchungen beantwortet werden kann, ist die Methode immer noch weitgehend unbekannt. Im Vergleich zum EKG ist der Betrieb eines Magnetokardiographen durch Verwendung supraleitender Sensoren mit der Notwendigkeit zur Kühlung mit flüssigem Helium und aufwendiger magnetischer Abschirmung um ein Vielfaches teurer und nicht am Patientenbett verfügbar. Der Gewinn an diagnostischer Information lässt den Aufwand jedoch als gerechtfertigt erscheinen, da die Sensitivität für ischämisches Myokard sowohl in Ruhe als auch unter Belastung deutlich höher ist als die des EKG. Im Hinblick auf die Risikostratifizierung für den plötzlichen Herztod erlaubt die Magnetfeldanalyse möglicherweise eine genauere Indikationsstellung für die prophylaktische Defibrillatorimplantation. Die räumliche Auflösung ist hoch genug für eine nichtinvasive Lokalisation arrhythmogener Foki, was die Methode insbesondere für das Management von Vorhofflimmerablationen interessant macht. Prospektive und ausreichende klinische Daten fehlen jedoch bisher weitgehend. Es gibt ausreichend Raum für Fantasien über weitere Fragestellungen der klinischen Kardiologie, die mit der MKG beantwortet werden können.
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Metadaten
Titel
Anwendung der Magnetokardiographie in der klinischen Kardiologie
Aktueller Stand und Ausblick in die Zukunft
verfasst von
B. Leithäuser
F. Jung
Prof. (ROK) Dr. med. habil. J.W. Park
Publikationsdatum
01.04.2012
Verlag
Springer-Verlag
Erschienen in
Die Kardiologie / Ausgabe 2/2012
Print ISSN: 2731-7129
Elektronische ISSN: 2731-7137
DOI
https://doi.org/10.1007/s12181-012-0401-3

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