Michiru Kajiwara1, Tomoyuki Haishi2,3, and Yasuhiko Terada1
1Institute of Applied Physics, University of Tsukuba, Tsukuba, Japan, 2Department of Radiological Sciences, School of Health Sciences at Narita, International University of Health and Welfar, Narita, Japan, 3MRTechnology Inc., Tsukuba, Japan
1Institute of Applied Physics, University of Tsukuba, Tsukuba, Japan, 2Department of Radiological Sciences, School of Health Sciences at Narita, International University of Health and Welfar, Narita, Japan, 3MRTechnology Inc., Tsukuba, Japan
We
have developed and demonstrated the feasibility of an add-on crossband repeater
platform that enables 23Na-MRI by simply inserting it into an
existing 1H-MRI system.
Fig.
1 Add-on 23Na MRI platform equipped with the 1.5T 1H
system. (a) Schematic overview of the system. (b) 1.5T magnet. (c) 1H
transmit/receive coil without the RF shield. (d) 23Na
transmit/received coil without the RF shield. (e) 1H pick-up coil.
(f) Crossband convertor.
Fig.
5 Demonstration of 1H/23Na imaging. (a) Saturated saline
and water phantom. (b) Live mouse. (c) SNR measured in phantom and in vivo
studies. (d,e) 1H-MRI and 23Na-MRI for (d) phantom and (e)
live mouse. The red and blue squares indicate the noise and signal areas
evaluated for the SNR measurement, respectively.