PMID- 31840295 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20240214 IS - 1522-2594 (Electronic) IS - 0740-3194 (Print) IS - 0740-3194 (Linking) VI - 84 IP - 1 DP - 2020 Jul TI - Accelerated spin-echo functional MRI using multisection excitation by simultaneous spin-echo interleaving (MESSI) with complex-encoded generalized slice dithered enhanced resolution (cgSlider) simultaneous multislice echo-planar imaging. PG - 206-220 LID - 10.1002/mrm.28108 [doi] AB - PURPOSE: Spin-echo functional MRI (SE-fMRI) has the potential to improve spatial specificity when compared with gradient-echo fMRI. However, high spatiotemporal resolution SE-fMRI with large slice-coverage is challenging as SE-fMRI requires a long echo time to generate blood oxygenation level-dependent (BOLD) contrast, leading to long repetition times. The aim of this work is to develop an acquisition method that enhances the slice-coverage of SE-fMRI at high spatiotemporal resolution. THEORY AND METHODS: An acquisition scheme was developed entitled multisection excitation by simultaneous spin-echo interleaving (MESSI) with complex-encoded generalized slice dithered enhanced resolution (cgSlider). MESSI uses the dead-time during the long echo time by interleaving the excitation and readout of 2 slices to enable 2x slice-acceleration, while cgSlider uses the stable temporal background phase in SE-fMRI to encode/decode 2 adjacent slices simultaneously with a "phase-constrained" reconstruction method. The proposed cgSlider-MESSI was also combined with simultaneous multislice (SMS) to achieve further slice-acceleration. This combined approach was used to achieve 1.5-mm isotropic whole-brain SE-fMRI with a temporal resolution of 1.5 s and was evaluated using sensory stimulation and breath-hold tasks at 3T. RESULTS: Compared with conventional SE-SMS, cgSlider-MESSI-SMS provides 4-fold increase in slice-coverage for the same repetition time, with comparable temporal signal-to-noise ratio. Corresponding fMRI activation from cgSlider-MESSI-SMS for both fMRI tasks were consistent with those from conventional SE-SMS. Overall, cgSlider-MESSI-SMS achieved a 32x encoding-acceleration by combining R(inplane) x MB x cgSlider x MESSI = 4 x 2 x 2 x 2. CONCLUSION: High-quality, high-resolution whole-brain SE-fMRI was acquired at a short repetition time using cgSlider-MESSI-SMS. This method should be beneficial for high spatiotemporal resolution SE-fMRI studies requiring whole-brain coverage. CI - (c) 2019 International Society for Magnetic Resonance in Medicine. FAU - Han, SoHyun AU - Han S AUID- ORCID: 0000-0002-1309-7628 AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Department of Radiology, Harvard Medical School, Boston, Massachusetts. FAU - Liao, Congyu AU - Liao C AUID- ORCID: 0000-0003-2270-276X AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Department of Radiology, Harvard Medical School, Boston, Massachusetts. FAU - Manhard, Mary Kate AU - Manhard MK AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Department of Radiology, Harvard Medical School, Boston, Massachusetts. FAU - Park, Daniel Joseph AU - Park DJ AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. FAU - Bilgic, Berkin AU - Bilgic B AUID- ORCID: 0000-0002-9080-7865 AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Department of Radiology, Harvard Medical School, Boston, Massachusetts. FAU - Fair, Merlin J AU - Fair MJ AUID- ORCID: 0000-0002-9100-3105 AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Department of Radiology, Harvard Medical School, Boston, Massachusetts. FAU - Wang, Fuyixue AU - Wang F AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Medical Engineering & Medical Physics, Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts. FAU - Blazejewska, Anna I AU - Blazejewska AI AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Department of Radiology, Harvard Medical School, Boston, Massachusetts. FAU - Grissom, William A AU - Grissom WA AUID- ORCID: 0000-0002-3289-1827 AD - Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, USA. FAU - Polimeni, Jonathan R AU - Polimeni JR AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Department of Radiology, Harvard Medical School, Boston, Massachusetts. AD - Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts. FAU - Setsompop, Kawin AU - Setsompop K AD - Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts. AD - Department of Radiology, Harvard Medical School, Boston, Massachusetts. AD - Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts. LA - eng GR - U01 EB025162/EB/NIBIB NIH HHS/United States GR - R01 MH116173/MH/NIMH NIH HHS/United States GR - R01 EB019437/EB/NIBIB NIH HHS/United States GR - S10 RR019254/RR/NCRR NIH HHS/United States GR - S10 RR019307/RR/NCRR NIH HHS/United States GR - R01 MH111419/MH/NIMH NIH HHS/United States GR - R01 EB020613/EB/NIBIB NIH HHS/United States GR - S10 RR023043/RR/NCRR NIH HHS/United States GR - P41 EB015896/EB/NIBIB NIH HHS/United States GR - S10 RR023401/RR/NCRR NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20191216 PL - United States TA - Magn Reson Med JT - Magnetic resonance in medicine JID - 8505245 SB - IM MH - Brain/diagnostic imaging MH - *Brain Mapping MH - *Echo-Planar Imaging MH - Image Processing, Computer-Assisted MH - Magnetic Resonance Imaging MH - Signal-To-Noise Ratio PMC - PMC7083698 MID - NIHMS1571944 OTO - NOTNLM OT - GSlider OT - Hadamard encoding OT - functional imaging OT - slice interleaving OT - spin echo EDAT- 2019/12/17 06:00 MHDA- 2021/05/15 06:00 PMCR- 2020/07/01 CRDT- 2019/12/17 06:00 PHST- 2019/05/22 00:00 [received] PHST- 2019/10/29 00:00 [revised] PHST- 2019/11/14 00:00 [accepted] PHST- 2019/12/17 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2019/12/17 06:00 [entrez] PHST- 2020/07/01 00:00 [pmc-release] AID - 10.1002/mrm.28108 [doi] PST - ppublish SO - Magn Reson Med. 2020 Jul;84(1):206-220. doi: 10.1002/mrm.28108. Epub 2019 Dec 16.