| Optimization of scantiming in abdominal breathhold contrast-enhanced MRA: an empirical guideline. | |
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MedLine Citation:
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PMID: 11358657 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The objective of this study to determine a suitable scan timing scheme in contrast enhanced MRA for the depiction of the arterial, the portal and the systemic venous system in the abdomen with maximum signal intensity in healthy subjects and in patients with cirrhosis. The signal intensity in the aorta, hepatic artery, portal vein, left renal vein and the supra- and infrarenal IVC were measured in 40 consecutive orthotopic liver transplantation candidates with cirrhosis and 20 healthy renal donors in a bolus triggered arterial scan and after 30, 60, 90 and 150 s respectively. The aorta and hepatic artery showed the highest signal intensity on the arterial scan. The portal and left renal vein showed the highest signal intensity after 30 s, the suprarenal IVC after 60 s and the infrarenal IVC after 90 s. No significant differences were found between healthy subjects and patients with cirrhosis. The arterial, portal and systemic venous system in the abdomen can be visualized selectively with maximum signal intensity by proper timing of the scans, hereby reducing redundant scans. Scanning at just the right time to achieve optimal vessel opacification can be promoted by using data from this study. The proposed scan scheme is suitable for subjects with and without cirrhosis. |
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Authors:
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W J Boeve; W J Sluiter; R L Kamman |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Magnetic resonance imaging Volume: 19 ISSN: 0730-725X ISO Abbreviation: Magn Reson Imaging Publication Date: 2001 Feb |
Date Detail:
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Created Date: 2001-05-18 Completed Date: 2001-07-26 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8214883 Medline TA: Magn Reson Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 193-200 Citation Subset: IM |
Affiliation:
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Department of Radiology, University Hospital Groningen, Hanzeplein 1, Groningen 9713 GZ, the Netherlands. w.j.boeve@rad.azg.nl |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aorta, Abdominal / pathology* Female Hepatic Artery / pathology* Humans Image Enhancement* Image Processing, Computer-Assisted* Liver Cirrhosis / diagnosis* Magnetic Resonance Angiography* Male Middle Aged Portal Vein / pathology* Reference Values Renal Veins / pathology* Time and Motion Studies Vena Cava, Inferior / pathology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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