PMID- 35008082
OWN - NLM
STAT- MEDLINE
DCOM- 20220505
LR  - 20220505
IS  - 1361-6560 (Electronic)
IS  - 0031-9155 (Linking)
VI  - 67
IP  - 3
DP  - 2022 Jan 27
TI  - FID-calibrated simultaneous multi-slice fast spin echo with long trains of hard 
      pulses.
LID - 10.1088/1361-6560/ac499a [doi]
AB  - Objective. To develop a novel, free-induction-decay (FID)-calibrated single-shot 
      simultaneous multi-slice fast spin echo (SMS-FSE) with very long hard pulse 
      trains for high encoding efficiency and low energy deposition.Approach. The 
      proposed single-shot SMS-FSE employs a mixed pulse configuration in which a long 
      excitation pulse that is spatially multi-band (MB) selective is used in 
      conjunction with short spatially nonselective refocusing pulses. To alleviate 
      energy deposition to tissues while reducing signal modulation along the echo 
      train, variable low flip angles with signal prescription are utilized in the 
      refocusing pulse train. A time-efficient FID calibration and correction method is 
      introduced before aliased voxels in the slice direction are resolved. Simulations 
      and experiments are performed to demonstrate the feasibility of the proposed 
      method as an alternative to conventional HASTE for generatingT(2)-weighted 
      images.Main results. Compared with conventional HASTE, the proposed method 
      enhances imaging speed effectively by an MB factor up to 5 without apparent loss 
      of image contrast while successfully eliminating FID artifacts.Significance. We 
      successfully demonstrated the feasibility of the proposed method as an encoding- 
      and energy-efficient alternative to conventional HASTE for generation 
      ofT(2)-weighted contrast.
CI  - (c) 2022 Institute of Physics and Engineering in Medicine.
FAU - Lim, Eun Ji
AU  - Lim EJ
AUID- ORCID: 0000-0002-4230-3427
AD  - Department of Biomedical Engineering, Sungkyunkwan University, Suwon, Republic of 
      Korea.
FAU - Sohn, Chul-Ho
AU  - Sohn CH
AD  - Department of Radiology, Seoul National University Hospital, Seoul, Republic of 
      Korea.
FAU - Shin, Taehoon
AU  - Shin T
AD  - Division of Mechanical and Biomedical Engineering, Ewha Womans University, Seoul, 
      Republic of Korea.
FAU - Park, Jaeseok
AU  - Park J
AD  - Department of Biomedical Engineering, Sungkyunkwan University, Suwon, Republic of 
      Korea.
AD  - Department for Intelligent Precision Healthcare Convergence, Sungkyunkwan 
      University, Suwon, Republic of Korea.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20220127
PL  - England
TA  - Phys Med Biol
JT  - Physics in medicine and biology
JID - 0401220
SB  - IM
MH  - *Artifacts
MH  - *Magnetic Resonance Imaging/methods
OTO - NOTNLM
OT  - fast spin echo (FSE)
OT  - free induction decay (FID)
OT  - magnetic resonance imaging (MRI)
OT  - simultaneous multi-slice (SMS)
EDAT- 2022/01/11 06:00
MHDA- 2022/05/06 06:00
CRDT- 2022/01/10 20:36
PHST- 2021/09/23 00:00 [received]
PHST- 2022/01/10 00:00 [accepted]
PHST- 2022/01/11 06:00 [pubmed]
PHST- 2022/05/06 06:00 [medline]
PHST- 2022/01/10 20:36 [entrez]
AID - 10.1088/1361-6560/ac499a [doi]
PST - epublish
SO  - Phys Med Biol. 2022 Jan 27;67(3). doi: 10.1088/1361-6560/ac499a.