Zusammenfassung
Die Computertomographie-Angiographie (CTA) der Aorta ist als diagnostisches Standardverfahren zur präprozeduralen Evaluation und Planung der endovaskulären Versorgung abdomineller Aortenaneurysmen („endovascular aortic repair“, EVAR) akzeptiert. Dabei liefert die CTA alle relevanten anatomischen und morphologischen Informationen über die zugrundeliegende Pathologie der Aorta und der Beckenachsen. Verschiedene Softwarelösungen zur multiplanaren Rekonstruktion der CT-Daten stehen für die exakte Vermessung der Zugangswege und der Landungszonen zur Verfügung und sind essenzieller Bestandteil der individuellen Operationsplanung. Die Synthese sämtlicher CT-basierter Informationen ermöglicht eine sichere und zielgenaue Freisetzung des Stentgrafts in der Aorta. Ferner kann die periprozedurale Strahlendosis durch eine präzise präoperative Planung der Durchleuchtungspositionen bei der Implantation reduziert werden.
Abstract
Computed tomography angiography (CTA) of the aorta is an accepted standard diagnostic procedure for preoperative evaluation and planning of endovascular treatment of abdominal aortic aneurysms (endovascular aortic repair EVAR). The CTA method delivers all relevant anatomical and morphological information on the underlying pathology of the aorta and pelvic axes. Various software solutions are available for multiplanar reconstruction of the CT data for exact measurement of the access routes and landing zones and are essential components of individualized operation planning. The synthesis of all CT-based information allows a safe and exactly targeted release of the stent graft in the aorta. Furthermore, the periprocedural radiation dose can be reduced by a precise preoperative planning of the positions to be irradiated during implantation.
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Strobl, F., Sommer, W., Haack, M. et al. CT-Angiographie als Grundlage der optimierten Therapieplanung vor endovaskulärer Aneurysmaausschaltung (EVAR). Radiologe 53, 495–502 (2013). https://doi.org/10.1007/s00117-012-2450-9
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DOI: https://doi.org/10.1007/s00117-012-2450-9
Schlüsselwörter
- Abdominelles Aortenaneurysma
- Endovaskuläre Intervention
- Planung
- Multiplanare Rekonstruktion
- CT-basierte Informationen