| Intracranial arteriovenous malformation: time-resolved contrast-enhanced MR angiography with combination of parallel imaging, keyhole acquisition, and k-space sampling techniques at 1.5 T. | |
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MedLine Citation:
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PMID: 18195381 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To prospectively compare the agreement between digital subtraction angiography (DSA) and time-resolved magnetic resonance (MR) angiography with sensitivity encoding (SENSE) in combination with keyhole acquisition and contrast material-enhanced robust-timing angiography (CENTRA) k-space sampling techniques for the characterization of intracranial arteriovenous malformations (AVMs). MATERIALS AND METHODS: The institutional review board approved the study; informed consent was obtained from all patients (or their parents). Twenty-eight patients (15 male, 13 female; mean age, 38.6 years; age range, 16-61 years) with 29 previously diagnosed, untreated intracranial AVMs who were referred for stereotactic gamma knife radiosurgery were evaluated. Preinterventional imaging included intraarterial DSA and time-resolved MR angiography. The time-resolved MR angiography sequence included SENSE with a 1.5-T imager and was optimized by applying keyhole acquisition and CENTRA techniques. Time-resolved MR angiograms were reviewed by two independent raters and compared with DSA images with regard to arterial feeders, nidus size, and venous drainage. kappa Statistics were applied to determine interobserver and intermodality agreement. RESULTS: MR angiography enabled time-resolved (1.7 seconds per volume) visualization of cerebral vessels from axis to vertex at high spatial resolution (true voxel size, 1 x 1 x 2 mm). All 25 nidi detected at intraarterial DSA were visualized at time-resolved MR angiography. Intermodality agreement was excellent for arterial feeders (kappa = 0.91; 95% confidence interval [CI]: 0.786, 1.000) and venous drainage (kappa = 0.94; 95% CI: 0.814, 1.000) and was good for nidus size (kappa = 0.76; 95% CI: 0.562, 0.950). CONCLUSION: The agreement (good to excellent) between time-resolved MR angiographic and DSA findings suggests that time-resolved MR angiography is a reliable tool for the characterization of intracranial AVMs with respect to arterial feeders, nidus size, and venous drainage. |
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Authors:
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Christian A Taschner; Jürgen Gieseke; Vianney Le Thuc; Henda Rachdi; Nicolas Reyns; Jean-Yves Gauvrit; Xavier Leclerc |
Publication Detail:
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Type: Journal Article Date: 2008-01-14 |
Journal Detail:
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Title: Radiology Volume: 246 ISSN: 1527-1315 ISO Abbreviation: Radiology Publication Date: 2008 Mar |
Date Detail:
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Created Date: 2008-02-29 Completed Date: 2008-03-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401260 Medline TA: Radiology Country: United States |
Other Details:
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Languages: eng Pagination: 871-9 Citation Subset: AIM; IM |
Copyright Information:
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(c) RSNA, 2008. |
Affiliation:
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Department of Neuroradiology, Hôpital Roger Salengro, University Hospital Lille, Rue Emile Laine, F-59037 Lille Cédex, France. c.taschner@web.de |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Angiography, Digital Subtraction Contrast Media Female Humans Image Processing, Computer-Assisted Intracranial Arteriovenous Malformations / pathology* Magnetic Resonance Angiography / methods* Male Meglumine Middle Aged Observer Variation Organometallic Compounds |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 0/Organometallic Compounds; 0/gadoterate meglumine; 6284-40-8/Meglumine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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