Document Detail


The efficacy of gadobenate dimeglumine (Gd-BOPTA) at 3 Tesla in brain magnetic resonance imaging: comparison to 1.5 Tesla and a standard gadolinium chelate using a rat brain tumor model.
MedLine Citation:
PMID:  16481906     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: The objectives of this study were to analyze the differences in contrast enhancement using gadobenate dimeglumine (Gd-BOPTA or MultiHance) at 3 T versus 1.5 T and to compare Gd-BOPTA with a standard gadolinium chelate, gadopentetate dimeglumine (Gd-DTPA or Magnevist), at 3 T in a rat glioma model. MATERIALS AND METHODS: Twelve rats with surgically implanted gliomas were randomized to either comparing Gd-BOPTA at 1.5 T versus 3 T (n=7) or comparing Gd-BOPTA and Gd-DTPA at 3 T (n=5). Matched T1-weighted spin-echo techniques were used for both comparisons and the order of examinations was randomized. Signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and lesion enhancement (LE) were evaluated using a region-of-interest analysis. A veterinary histopathologist evaluated all brain specimens. RESULTS: In the evaluation of Gd-BOPTA at 3 T and 1.5 T, there were significant increases in SNR, LE, and CNR at 3 T. Average increases in brain and tumor SNR were 93% (P<0.0001) and 92% (P<0.0001), respectively. CNR increased by 121% (P<0.0001). Comparison of Gd-BOPTA and Gd-DTPA at 3 T demonstrated significantly higher CNR and LE with Gd-BOPTA. CNR increased by 35% (P=0.002). LE increased by 44% (P=0.03). CONCLUSIONS: Gd-BOPTA provides significantly higher CNR at 3 T compared with 1.5 T and also demonstrates significantly higher CNR when compared with a standard Gd-chelate at 3 T. As a result of transient protein binding, Gd-BOPTA may be superior to standard gadolinium chelates in neurologic imaging at 3 T.
Authors:
Val M Runge; Jonmenjoy Biswas; Bernd J Wintersperger; Shannon S Baumann; Carney B Jackson; Christoph U Herborn; Tushar Patel
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Investigative radiology     Volume:  41     ISSN:  0020-9996     ISO Abbreviation:  Invest Radiol     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-02-16     Completed Date:  2006-07-13     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0045377     Medline TA:  Invest Radiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  244-8     Citation Subset:  IM    
Affiliation:
Department of Radiology, Scott & White Clinic and Hospital, Texas A&M University Health Science Center, Temple Texas 76508, USA. runge@att.net
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MeSH Terms
Descriptor/Qualifier:
Animals
Brain Neoplasms / pathology*
Contrast Media / pharmacokinetics*
Female
Gadolinium DTPA / pharmacokinetics*
Glioma / pathology*
Magnetic Resonance Imaging / methods*
Meglumine / analogs & derivatives*,  pharmacokinetics
Organometallic Compounds / pharmacokinetics*
Random Allocation
Rats
Rats, Inbred F344
Chemical
Reg. No./Substance:
0/Contrast Media; 0/Organometallic Compounds; 113662-23-0/gadobenic acid; 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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