Ultrashort echo-time 2D imaging employing\nsingle/double inversion recovery and refocusing-free excitation

0484296 - ÚPT 2018 RIV DE eng C - Konferenční příspěvek (zahraniční konf.)
Starčuk jr., Zenon - Latta, P. - Starčuková, Jana
Ultrashort echo-time 2D imaging employing
single/double inversion recovery and refocusing-free excitation.
Magma. Book of Abstracts. Vol. 30 S1. Berlin: Springer, 2017, S89-S90. E-ISSN 1352-8661.
[ESMRB 2017. Annual Scientific Meeting /34./. Barcelona (ES), 19.10.2017-21.10.2017]
Grant CEP: GA ČR(CZ) GA15-12607S; GA MŠMT(CZ) LO1212; GA MŠMT ED0017/01/01
GRANT EU: European Commission(XE) 136679
Institucionální podpora: RVO:68081731
Klíčová slova: magnetic resonance imaging (MRI) * myelin * ultra-short echo-time (UTE) * pulse sequence
Obor OECD: Medical engineering

MRI of short-T2 signals (e.g., cartilage, tendon, bone, myelin) requires submillisecond echo times, which are difficult to achieve with standard 2D MRI due to the need for rampdown and refocusing of the slice-selection gradient, and elimination
of the overwhelming longer-T2 signals. To avoid the long 3D centrifugal k-space sampling and to ensure efficient long-T2 suppression, we propose a method combining single- or double-inversion recovery (SIR or DIR) preparation of short-T2 magnetization, short VERSEmodified
half-pulse excitation avoiding the need for slice refocusing, and dual-echo 2D radial k-space acquisition with k-trajectory
compensation.
Trvalý link: http://hdl.handle.net/11104/0279434