Zusammenfassung
In den letzten Jahren hat der Bildgebungsbedarf im elektrophysiologischen Herzkatheterlabor enorm zugenommen. Fluoroskopie und Angiographie werden häufig durch präprozedurale Magnetresonanz- oder Computertomographien sowie elektroanatomische Mappingverfahren ergänzt. Nachteilig sind eine unzureichende Auflösung der Weichgewebe in Echtzeit sowie die notwendige Strahlen- und Kontrastmittelbelastung. Ultraschalltechniken zeichnen sich dagegen durch eine hohe Auflösung von Weichteilgewebe und die Möglichkeit einer intraprozeduralen Echtzeit-Bildgebung aus. Alle relevanten anatomischen Strukturen und deren Beziehungen zu eingebrachten Kathetern können jederzeit intraprozedural evaluiert werden. Weiterhin sind funktionelle Analysen, wie Flussmessungen und ein Monitoring im Hinblick auf Komplikationen möglich. Die transösophageale Echokardiographie (TEE) und besonders die intrakardiale Echokardiographie (ICE) tragen heute erheblich zur Effektivität und Sicherheit komplexer Prozeduren bei. Die ICE hat sich bei transseptalen Prozeduren wie Vorhofflimmerablationen, aber auch bei Ablationen von ventrikulären Tachykardien als sinnvoll erwiesen und wird von führenden Fachgesellschaften empfohlen.
Abstract
During recent years the need for intraprocedural imaging has increased. Fluoroscopy and angiography are frequently supplemented by pre-procedural magnetic resonance or computed tomography imaging as well as electroanatomic mapping techniques. However, poor real-time imaging quality of soft tissue, radiation exposure, and contrast media consumption are disadvantageous. Ultrasound techniques are characterized by high-quality imaging of soft tissue that can be obtained in real time. All relevant anatomical structures and their relationships to catheters can be evaluated at any time during the procedure. Moreover, functional analysis, e.g., flow measurements and monitoring for complications, is possible. Transesophageal and especially intracardiac echocardiography (ICE) contribute enormously to effectiveness and safety of complex procedures. ICE has been shown to be useful in transseptal procedures like atrial fibrillation ablation but also in ablation procedures for ventricular tachycardias.
Abbreviations
- CT::
-
Computertomographie
- MRT::
-
Magnetresonanztomographie
- ICE::
-
Intrakardiale Echokardiographie
- PV::
-
Pulmonalvenen
- TEE::
-
Transösophageale Echokardiographie
- TTE::
-
Transthorakale Echokardiographie
- VT::
-
Ventrikuläre Tachykardie
- 3D::
-
Dreidimensional
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Interessenkonflikte.
Klaus-Jürgen Gutleben: Vortragshonorare von den Firmen Biosense Webster, Medtronic und St. Jude Medical.
Jens Günther: Vortragshonorare und Proctoring von und für SJM, Biosense Webster.
Nikitas Lironis: keine
Georg Nölker: Vortragshonorare von den Firmen Biosense Webster, Medtronic und St. Jude Medical.
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Gutleben, KJ., Nölker, G., Lironis, N. et al. Ultraschall im elektrophysiologischen Herzkatheterlabor. Herzschr Elektrophys 23, 260–268 (2012). https://doi.org/10.1007/s00399-012-0235-5
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DOI: https://doi.org/10.1007/s00399-012-0235-5
Schlüsselwörter
- Ablationstherapie
- Vorhofflimmern
- Ventrikuläre Tachykardien
- Intrakardiale Echokardiographie
- Transösophageale Echokardiographie