A simple way to acquire T(1)-weighted MR images of rat liver with respiratory triggering.
To acquire high-resolution T(1)-weighted images of the liver in rats, for which breath-holding cannot be ensured, respiratory triggering is essential. At the respiratory rate of 30-60 times/min in rats, however, T(1)-weighted images cannot be obtained with simple triggering. As a simple solution to this, we applied multiple repeated acquisitions with one trigger signal. With this technique, sufficient T(1) contrast could be easily achieved in rat liver enhanced by gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid infusion.
Biomedical MR Science Center, Shiga University of Medical Science, Shiga 520-2192, Japan. morikawa@belle.shiga-med.ac.jp
Shigehiro
S
Morikawa
Hiroyuki
H
Murayama
Sakae
S
Fujimoto
Akihiko
A
Shiino
Toshiro
T
Inubushi
D000818:Animals; D003287:Contrast Media / Q000008:administration & dosage*; D019786:Gadolinium DTPA / Q000008:administration & dosage*; D008099:Liver / Q000033:anatomy & histology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D051381:Rats; D012119:Respiration
D003287:Contrast Media; C073590:gadolinium ethoxybenzyl DTPA; D019786:Gadolinium DTPA