| Is half-dose contrast-enhanced three-dimensional MR angiography sufficient for the abdominal aorta and pelvis? | |
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MedLine Citation:
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PMID: 14745753 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To evaluate the usefulness of half-dose contrast-enhanced magnetic resonance (MR) angiography for depicting the abdominal aorta and its major branches. MATERIALS AND METHODS: A total of 72 consecutive patients were randomly assigned to one of four groups that underwent MR angiography after receiving different concentrations (original or diluted to 50%) and total amounts (single or half-dose) of gadolinium chelate injected at different rates (1 or 0.5 mL/second). The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of the abdominal aorta and of the common and external iliac arteries were calculated, and two blinded readers rated the respective image qualities. RESULTS: The SNR and CNR of the abdominal aorta and the common iliac artery in the 0.5 mL/second groups were statistically significantly lower than those in the 1 mL/second groups. The differences in overall image quality across the four groups were not statistically significant. CONCLUSION: Half-dose MR angiography using diluted contrast medium injected at a rate of 1 mL/second depicted the abdominal aorta and its branches as clearly as using a full single dose. |
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Authors:
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Satoru Takahashi; Takamichi Murakami; Manabu Takamura; Tonsok Kim; Masatoshi Hori; Yoshifumi Narumi; Hironobu Nakamura |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: 19 ISSN: 1053-1807 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2004 Feb |
Date Detail:
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Created Date: 2004-01-27 Completed Date: 2004-06-23 Revised Date: 2004-11-17 |
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: 194-201 Citation Subset: IM |
Copyright Information:
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Copyright 2004 Wiley-Liss, Inc. |
Affiliation:
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Department of Clinical Informative Imagiology, Osaka University Graduate School of Medicine, Osaka, Japan. takahashi@inf-img.med.osaka-u.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Analysis of Variance Aorta, Abdominal / anatomy & histology* Contrast Media / administration & dosage Dose-Response Relationship, Drug Female Gadolinium DTPA / administration & dosage, diagnostic use* Humans Imaging, Three-Dimensional / methods* Injections, Intravenous Magnetic Resonance Angiography / methods* Middle Aged Pelvis / anatomy & histology*, blood supply Phantoms, Imaging Statistics, Nonparametric |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 80529-93-7/Gadolinium DTPA |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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