gms | German Medical Science

57th Annual Meeting of the German Society of Neurosurgery
Joint Meeting with the Japanese Neurosurgical Society

German Society of Neurosurgery (DGNC)

11 - 14 May, Essen

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Time resolved contrast-enhanced carotid and cerebral 3D MR angiography

Zeitaufgelöste Kontrastmittelgestützte Karotis und intrakranielle 3D MR-Angiographie

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  • corresponding author K. Kollia - Institut für Diagn. & Interv. Radiologie & Neuroradiologie, Universitätsklinikum Essen
  • S. Maderwald - Institut für Diagn. & Interv. Radiologie & Neuroradiologie, Universitätsklinikum Essen
  • N. Özkan - Klinik und Poliklinik für Neurochirurgie, Universitätsklinikum Essen
  • M. Schlamann - Institut für Diagn. & Interv. Radiologie & Neuroradiologie, Universitätsklinikum Essen
  • M. Forsting - Institut für Diagn. & Interv. Radiologie & Neuroradiologie, Universitätsklinikum Essen
  • I. Wanke - Institut für Diagn. & Interv. Radiologie & Neuroradiologie, Universitätsklinikum Essen

Deutsche Gesellschaft für Neurochirurgie. Japanische Gesellschaft für Neurochirurgie. 57. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie e.V. (DGNC), Joint Meeting mit der Japanischen Gesellschaft für Neurochirurgie. Essen, 11.-14.05.2006. Düsseldorf, Köln: German Medical Science; 2006. DocSA.05.09

The electronic version of this article is the complete one and can be found online at: http://www.egms.de/en/meetings/dgnc2006/06dgnc121.shtml

Published: May 8, 2006

© 2006 Kollia et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en). You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.

Outline

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Objective: The aim is to improve the temporal resolution of CE-MR-Angiography by evaluating a new time-resolved 3D CE-MRA combining parallel acquisition technique (GRAPPA) and echo-sharing technique for the supraaortic and cerebral vessels.

Methods: 14 patients (4 with cerebral AV-malformation, 5 with cerebral AV-malformation as follow-up study after treatment, 3 with AV-Fistula, and 2 with meningeoma) were examined using a new time-resolved ce-MRA technique. The examinations were done on a 1.5T system (Avanto, Siemens AG, Erlangen) using a 12-channel head-coil and a 4-channel neck-coil. The combination of parallel acquisition-technique (GRAPPA 3) and echo-sharing (TREAT 3-5-7) allowed a temporal resolution of less than 1sec per data set. The MR-datasets were evaluated and compared with conventional catheter angiography (DSA).

Results: Temporal resolution was sufficient for evaluating nidus delineation, arterial supply and early-draining veins in correlation with DSA. In the patients with untreated cerebral AVMs and in those after treatment no early-draining veins were seen and the nidus was no longer visible. In the patient group with treated AVF´s, there were no early-draining veins visible as a result of successful treatment. In the patients with meningeoma, visualisation of the feeding arterial branches was possible with good correlation to DSA.

Conclusions: In neurosurgical patients with a treated intracranial AVM and AVF who need follow-up studies, may profit from this imaging technique the most because DSA could be avoided.