| Non-invasive visualization of basilar artery perforators with 7T MR angiography. | |
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MedLine Citation:
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PMID: 20815051 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To visualize the perforating arteries originating from basilar artery (BA) by using ultra-high resolution 7T MR angiography (MRA) and optimizing MR parameters as well as radio frequency (RF) coils, which may provide important information for neurosurgery and understanding diseases of the pons, but was unable to clearly visualize with conventional MRA techniques. MATERIALS AND METHODS: Seven healthy volunteers (five males and two females, age [mean +/- SD] = 28.71 +/- 7.54 years) were scanned using optimized MR parameters to obtain images of pontine arteries (PAs) originating from the main trunk of BA. Two different volume coils and a phased array coil were designed and compared for this study. The images obtained at 7T MRA were compared with those at 1.5T and 3T MRA. RESULTS: The results showed that PA imaging at 7T MRI consistently provided clearly identifiable vessels, which were difficult to visualize in MR angiograms obtained at 1.5T and 3T MRIs. Volume RF coils had higher sensitivity for the center of the brain, which enhanced PA imaging compared to phased array coil. The average number of PA branches in all seven subjects observable by 7T MRA was 7.14 +/- 2.79, and the visualized PA branches were found to mainly propagating on the surface of the pons. CONCLUSION: We have demonstrated that ultra-high resolution 7T MRA could delineate the PAs using optimized imaging parameters and volume RF coils compared to commercially available 1.5T and 3T MRIs. |
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Authors:
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Chang-Ki Kang; Chan-A Park; Kyoung-Nam Kim; Suk-Min Hong; Cheol-Wan Park; Young-Bo Kim; Zang-Hee Cho |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: 32 ISSN: 1522-2586 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-09-03 Completed Date: 2011-01-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 544-50 Citation Subset: IM |
Affiliation:
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Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon, Korea. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Basilar Artery / anatomy & histology* Contrast Media / diagnostic use Female Humans Imaging, Three-Dimensional / methods Magnetic Resonance Angiography / instrumentation, methods* Male Microcirculation Middle Aged Radiographic Image Enhancement / methods* Radiographic Image Interpretation, Computer-Assisted / methods Reference Values Sampling Studies Sensitivity and Specificity Young Adult |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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