[Imaging characteristics of PROPELLER T2-weighted imaging].
As the PROPELLER sequence is a combination of the radial scan and fast-spin-echo (FSE) sequence, it can be considered an FSE sequence with a motion correlation. However, there are some differences between PROPELLER and FSE owing to differences in k-space trajectory. We clarified the imaging characteristics of PROPELLER T2-weighted imaging (T2WI) for different parameters in comparison with usual FSE T2WI. When the same parameters were used, PROPELLER T2WI showed a higher signal-to-noise ratio (SNR) and lower spatial resolution than usual FSE. Effective echo time (TE) changed with different echo train lengths (ETL) or different bandwidths on PROPELLER, and imaging contrast changed accordingly to be more effective.
Goto
Masami
M
Department of Radiological Technology, University of Tokyo Hospital.
Aoki
Shigeki
S
Hayashi
Naoto
N
Mori
Harushi
H
Watanabe
Yasushi
Y
Ino
Kenji
K
Satake
Yoshirou
Y
Nishida
Katuji
K
Sato
Haruo
H
Iida
Kyouhito
K
Mima
Kazuo
K
Ohtomo
Kuni
K
D016477:Artifacts; D038524:Diffusion Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods*; D019047:Phantoms, Imaging