Optimization of gadodiamide concentration for MR arthrography at 3 T.
OBJECTIVE
The purpose of our study was to determine the optimal concentration of a gadolinium-based contrast agent (gadodiamide) for direct MR arthrography at 3 T compared with 1.5 T in an in vitro study.


CONCLUSIONS
Optimized concentrations of gadolinium-based contrast agents for MR arthrography are similar at 3 and 1.5 T, although a slightly greater dilution may be useful at 3 T. Signal-to-noise ratio peak levels are significantly reduced by adding an iodinated contrast agent, relatively significantly more at 3 T than at 1.5 T.
Masi
Jeffrey N
JN
Department of Radiology, University of California, San Francisco, 400 Parnassus Ave., A 367, Box 0628, San Francisco, CA 94143-0628, USA.
Newitt
David
D
Sell
Christian A
CA
Daldrup-Link
Heike
H
Steinbach
Lynne
L
Majumdar
Sharmila
S
Link
Thomas M
TM
D001175:Arthrography; D003287:Contrast Media / Q000737:chemistry; D019786:Gadolinium DTPA / Q000737:chemistry; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D019047:Phantoms, Imaging
D003287:Contrast Media; C064925:gadodiamide; D019786:Gadolinium DTPA