| Comparison of gadobenate dimeglumine and gadodiamide in the evaluation of spinal vascular anatomy with MR angiography. | |
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MedLine Citation:
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PMID: 20053811 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND PURPOSE: Spinal MRA has been increasingly used to evaluate non-invasively the spinal cord vasculature. Our aim was to prospectively compare gadobenate dimeglumine with gadodiamide in the assessment of the normal spinal cord vasculature by using contrast-enhanced MRA, with the hypothesis that high T1 relaxivity gadolinium compounds may improve visualization of the intradural vessels. MATERIALS AND METHODS: Twenty subjects underwent 2 temporally separated contrast-enhanced spinal MRAs with gadobenate dimeglumine and gadodiamide (0.2 mmol/kg). Two blinded observers rated postprocessed images on the following qualitative parameters: background homogeneity, sharpness, vascular continuity, and contrast enhancement. Delineation of the ASA, AKA, hairpin configuration of the ASA-AKA connection, and visualized ASA length were recorded. Each observer indicated which of the 2 matched studies he or she thought was of the best overall diagnostic quality. RESULTS: According to both observers gadobenate dimeglumine was superior to gadodiamide in the representation of vascular continuity and contrast (P value < .05). Background homogeneity was not significantly different between the studies. One observer favored gadobenate dimeglumine over gadodiamide in the demonstration of vascular sharpness, while the second observer did not find any significant difference between contrast agents. There was no significant difference between contrast agents in the visualization of the ASA, AKA, hairpin-shaped ASA-AKA connection, and visualized length of the ASA. The overall quality of the gadobenate dimeglumine-enhanced MRA was deemed superior in 15 and 16 cases, respectively, by the 2 observers. CONCLUSIONS: Improved image quality and vascular contrast enhancement of spinal MRA at 1.5T is achieved with high T1 relaxivity gadolinium contrast agents compared with conventional agents at equivalent doses. |
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Authors:
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M V Spampinato; S A Nguyen; Z Rumboldt |
Publication Detail:
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Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2010-01-06 |
Journal Detail:
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Title: AJNR. American journal of neuroradiology Volume: 31 ISSN: 1936-959X ISO Abbreviation: AJNR Am J Neuroradiol Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-06-14 Completed Date: 2010-09-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8003708 Medline TA: AJNR Am J Neuroradiol Country: United States |
Other Details:
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Languages: eng Pagination: 1151-6 Citation Subset: IM |
Affiliation:
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Department of Radiology and Radiological Science, Medical University of South Carolina, 96 Jonathan Lucas St., Charleston, SC 29425, USA. spampin@musc.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Arteriovenous Malformations / pathology* Contrast Media / administration & dosage, diagnostic use* Cross-Over Studies Dura Mater / blood supply Female Gadolinium DTPA / administration & dosage, diagnostic use* Humans Magnetic Resonance Angiography / methods*, standards, statistics & numerical data Male Meglumine / administration & dosage, analogs & derivatives*, diagnostic use Middle Aged Observer Variation Organometallic Compounds / administration & dosage, diagnostic use* Prospective Studies Spinal Cord / blood supply* Young Adult |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 0/Organometallic Compounds; 113662-23-0/gadobenic acid; 122795-43-1/gadodiamide; 6284-40-8/Meglumine; 80529-93-7/Gadolinium DTPA |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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