| [An experimental study of the optimal flip angle for hepatocellular magnetic resonance imaging with Gd-EOB-DTPA]. | |
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MedLine Citation:
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PMID: 21099178 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Gadoxetate Sodium (Gd-EOB-DTPA) is a relatively new contrast agent used for liver examination by magnetic resonance (MR) imaging. The setting of the flip angle (FA) is very important to obtain images with high contrast in hepatocellular MR imaging. The aim of this study was to determine the optimal FA for hepatocellular MR imaging. Optimal FA was estimated using a visual evaluation by observers. We made the visual evaluation with a paired comparison test. When the overall characteristic showed a significant difference, we then evaluated the optimal FA using a yardstick analysis. The visual evaluation by observers indicated that the FA was best at 22 degrees for the overall characteristic, the contrast characteristic, and the sharpness characteristic, and for the noise characteristic, the best FA was 18 degrees. All characteristics showed a significant difference between 18 and 22 degrees. Based on our results, the most important factor was the contrast characteristic for the visual evaluation, and we concluded that the optimal FA in hepatocelluar MR imaging was 22 degrees. |
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Authors:
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Sono Chikazawa; Akira Inoue; Masahiro Tanabe; Syuuichi Yamauchi; Keiko Nakamura; Shingo Morita; Takuya Uehara; Naofumi Mastunaga |
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Publication Detail:
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Type: Comparative Study; English Abstract; Journal Article |
Journal Detail:
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Title: Nihon Hoshasen Gijutsu Gakkai zasshi Volume: 66 ISSN: 0369-4305 ISO Abbreviation: Nihon Hoshasen Gijutsu Gakkai Zasshi Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-11-24 Completed Date: 2011-02-10 Revised Date: 2011-07-28 |
Medline Journal Info:
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Nlm Unique ID: 7505722 Medline TA: Nihon Hoshasen Gijutsu Gakkai Zasshi Country: Japan |
Other Details:
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Languages: jpn Pagination: 1474-9 Citation Subset: IM |
Affiliation:
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Department of Radiological Technology, Yamaguchi University Hospital. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Contrast Media* Gadolinium DTPA / diagnostic use* Humans Liver / anatomy & histology* Magnetic Resonance Imaging / methods* |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 0/gadolinium ethoxybenzyl DTPA; 80529-93-7/Gadolinium DTPA |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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