| MRI location of the distal dural ring plane: anatomoradiological study and application to paraclinoid carotid artery aneurysms. | |
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MedLine Citation:
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PMID: 16132925 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The distal dural ring plane (DDRP) separates the intradural from the extradural paraclinoid internal carotid artery. The purpose of this study was to evaluate its position with MR imaging. The protocol used a T2-weighted sequence in two orthogonal planes: diaphragmatic (DIA-P) and carotid (CAR-P). The DDRP passes through four anatomoradiological reference points (RefP). We developed on a cadaveric model a correlation method supported by correlation lines and angles (CA) projecting the RefP toward the DDRP. RefP were correlated to the DDRP in 65-84% of cases in the DIA-P and 60-76% of cases in the CAR-P. CA were identified and correlated to the DDRP, respectively, in 87% and 60% of cases in the DIA-P, and 60% and 51% of cases in the CAR-P (failure often related to a lack of visibility of just one RefP). A higher tissular contrast in living subjects allowed the identification of CA in 90% and 80% of cases, respectively, in the DIA-P and the CAR-P. We propose that CA, when identified, should be considered as an approximation of the inferior radiological limit of the DDRP curve. In difficult angiographical cases, this MRI protocol could help to locate paraclinoid aneurysms on both sides of the cavernous sinus roof. |
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Authors:
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Laurent Thines; Christine Delmaire; Daniel Le Gars; Jean-Pierre Pruvo; Jean-Paul Lejeune; Pierre Lehmann; Jean-Paul Francke |
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Publication Detail:
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Type: Case Reports; Journal Article Date: 2005-08-23 |
Journal Detail:
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Title: European radiology Volume: 16 ISSN: 0938-7994 ISO Abbreviation: Eur Radiol Publication Date: 2006 Feb |
Date Detail:
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Created Date: 2006-01-20 Completed Date: 2006-07-06 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9114774 Medline TA: Eur Radiol Country: Germany |
Other Details:
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Languages: eng Pagination: 479-88 Citation Subset: IM |
Affiliation:
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Department of Neurosurgery, University Hospital, Lille, France. Laurent.Thines@wanadoo.fr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Carotid Artery, Internal / pathology* Cerebral Angiography Dura Mater / pathology* Female Humans Image Enhancement / methods* Image Processing, Computer-Assisted / methods* Intracranial Aneurysm / diagnosis* Magnetic Resonance Angiography / methods* Magnetic Resonance Imaging / methods* Male Middle Aged Models, Anatomic Reproducibility of Results Sensitivity and Specificity Statistics as Topic |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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