| Magnetic resonance angiography of the origins of the supraaortic arteries: comparison of single and double volume acquisition 3D time of flight. | |
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MedLine Citation:
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PMID: 8948158 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The authors have optimized the technique of Magnetic Resonance Angiography (MR-angio) in the study of the origins of the supraaortic arteries. METHODS: Twenty healthy volunteers, mean age 21.5, were studied with MR-angio of the origins of the supraaortic arteries; a 1 T superconductive magnet (Impact) with body coil was used. All the volunteers were studied using Time of flight (TOF), and two acquisition techniques: single volume FISP (fast imaging with steady-state precession) 3D TONE (titled optimized non-saturating excitation) and double volume FISP 3D TONE with 30% overlapping. The images were acquired on the axial plane following the positioning of three pre-saturation pulses. RESULTS: Regarding the visualization of the different components of the origins of the supraaortic arteries, a statistical analysis was worked out using the Mann Whitney test (p < 0.05); there was no statistically significant difference between two techniques. Regarding the visualization of the various segments (origin, 1/3 proximal, 1/3 middle, 1/3 distal), although the double volume did on the one hand allow a better visualization of the more distal vascular components (statiscally significant difference), on the other it induced the presence of artefacts with decreased the quality of the image as a whole. DISCUSSION: In our experience TOF 3D technique with TONE and single volume has well identified the origin of the vertebral arteries, while, in several cases, TOF 3D technique with TONE and double volume did not permit the visualization of the origin of the vertebral arteries due to the presence of the artefacts from overlapping. CONCLUSION: From our experience we have established that the TOF 3D technique with TONE and single volume makes it possible to obtain MR-angio of a high diagnostic quality in a short time (10-15 mn). |
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Authors:
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A Carriero; N Magarelli; F Padovano; M Baratto; R Fossaceca; L Bonomo |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Journal of neuroradiology. Journal de neuroradiologie Volume: 23 ISSN: 0150-9861 ISO Abbreviation: J Neuroradiol Publication Date: 1996 Sep |
Date Detail:
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Created Date: 1997-01-16 Completed Date: 1997-01-16 Revised Date: 2008-02-20 |
Medline Journal Info:
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Nlm Unique ID: 7705086 Medline TA: J Neuroradiol Country: FRANCE |
Other Details:
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Languages: eng Pagination: 62-8 Citation Subset: IM |
Affiliation:
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Department of Radiology, University G. D'Annuzio, Chieti. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aorta / anatomy & histology Artifacts Brachiocephalic Trunk / anatomy & histology Carotid Arteries / anatomy & histology* Carotid Artery, Common / anatomy & histology Female Humans Image Enhancement / methods* Magnetic Resonance Angiography / methods*, statistics & numerical data Male Subclavian Artery / anatomy & histology* Vertebral Artery / anatomy & histology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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