Shuhei Shibukawa1, Tetsu Niwa2, Tosiaki Miyati3, Misaki Saito4, Tetsuo Ogino5, Daisuke Yoshimaru6, and Kagayaki Kuroda7
1Tokai university hospital, Kanagawa, Japan, 2Tokai University School of Medicine, Isehara, Japan, 3Kanazawa University, Kanazawa, Japan, 4Tokai university hospital, Isehara, Japan, 5Philips Japan, Tokyo, Japan, 6RIKEN Center for Brain Science, saitama, Japan, 7Course of Electrical and Electronic Engineering, Graduate School of Engineering, Tokai University, Isehara, Japan
1Tokai university hospital, Kanagawa, Japan, 2Tokai University School of Medicine, Isehara, Japan, 3Kanazawa University, Kanazawa, Japan, 4Tokai university hospital, Isehara, Japan, 5Philips Japan, Tokyo, Japan, 6RIKEN Center for Brain Science, saitama, Japan, 7Course of Electrical and Electronic Engineering, Graduate School of Engineering, Tokai University, Isehara, Japan
DWI thermometry
for the brain is affected by the CSF pulsation. Therefore, we applied the
second-order motion compensation DTI in consideration of fractional anisotropy
for measurement of brain temperature. The proposed method can be more
accurately estimated than conventional DTI.
Figure 2
Examples of intraventricular temperature maps for the two DTI techniques with fractional anisotropy (FA) processing. The red arrows indicate some pixels around the foramen of Monro removed by FA processing.
Figure1
The second order motion compensation (2nd-MC) can be achieved by using suitable second moment nulling gradient waveforms. (a) conventional DTI and (b) 2nd-MC DTI．