Efficient T2 mapping with blip-up/down EPI and gSlider-SMS (T2 -BUDA-gSlider). Cao, X., Wang, K., Liao, C., Zhang, Z., Srinivasan Iyer, S., Chen, Z., Lo, W., Liu, H., He, H., Setsompop, K., Zhong, J., & Bilgic, B. Magnetic Resonance in Medicine, 86(4):2064–2075, October, 2021. doi abstract bibtex PURPOSE: To rapidly obtain high isotropic-resolution T2 maps with whole-brain coverage and high geometric fidelity. METHODS: A T2 blip-up/down EPI acquisition with generalized slice-dithered enhanced resolution (T2 -BUDA-gSlider) is proposed. A RF-encoded multi-slab spin-echo (SE) EPI acquisition with multiple TEs was developed to obtain high SNR efficiency with reduced TR. This was combined with an interleaved 2-shot EPI acquisition using blip-up/down phase encoding. An estimated field map was incorporated into the joint multi-shot EPI reconstruction with a structured low rank constraint to achieve distortion-free and robust reconstruction for each slab without navigation. A Bloch simulated subspace model was integrated into gSlider reconstruction and used for T2 quantification. RESULTS: In vivo results demonstrated that the T2 values estimated by the proposed method were consistent with gold standard spin-echo acquisition. Compared to the reference 3D fast spin echo (FSE) images, distortion caused by off-resonance and eddy current effects were effectively mitigated. CONCLUSION: BUDA-gSlider SE-EPI acquisition and gSlider-subspace joint reconstruction enabled distortion-free whole-brain T2 mapping in 2 min at ~1 mm3 isotropic resolution, which could bring significant benefits to related clinical and neuroscience applications.
@article{cao_efficient_2021,
title = {Efficient {T2} mapping with blip-up/down {EPI} and {gSlider}-{SMS} ({T2} -{BUDA}-{gSlider})},
volume = {86},
issn = {1522-2594},
doi = {10.1002/mrm.28872},
abstract = {PURPOSE: To rapidly obtain high isotropic-resolution T2 maps with whole-brain coverage and high geometric fidelity.
METHODS: A T2 blip-up/down EPI acquisition with generalized slice-dithered enhanced resolution (T2 -BUDA-gSlider) is proposed. A RF-encoded multi-slab spin-echo (SE) EPI acquisition with multiple TEs was developed to obtain high SNR efficiency with reduced TR. This was combined with an interleaved 2-shot EPI acquisition using blip-up/down phase encoding. An estimated field map was incorporated into the joint multi-shot EPI reconstruction with a structured low rank constraint to achieve distortion-free and robust reconstruction for each slab without navigation. A Bloch simulated subspace model was integrated into gSlider reconstruction and used for T2 quantification.
RESULTS: In vivo results demonstrated that the T2 values estimated by the proposed method were consistent with gold standard spin-echo acquisition. Compared to the reference 3D fast spin echo (FSE) images, distortion caused by off-resonance and eddy current effects were effectively mitigated.
CONCLUSION: BUDA-gSlider SE-EPI acquisition and gSlider-subspace joint reconstruction enabled distortion-free whole-brain T2 mapping in 2 min at {\textasciitilde}1 mm3 isotropic resolution, which could bring significant benefits to related clinical and neuroscience applications.},
language = {eng},
number = {4},
journal = {Magnetic Resonance in Medicine},
author = {Cao, Xiaozhi and Wang, Kang and Liao, Congyu and Zhang, Zijing and Srinivasan Iyer, Siddharth and Chen, Zhifeng and Lo, Wei-Ching and Liu, Huafeng and He, Hongjian and Setsompop, Kawin and Zhong, Jianhui and Bilgic, Berkin},
month = oct,
year = {2021},
pmid = {34046924},
pmcid = {PMC8295207},
keywords = {BUDA, Brain, Brain Mapping, Echo-Planar Imaging, Image Processing, Computer-Assisted, Imaging, Three-Dimensional, T2 map, gSlider, structured low rank},
pages = {2064--2075},
}
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{"_id":"E8BhKvPPydAhWnEcJ","bibbaseid":"cao-wang-liao-zhang-srinivasaniyer-chen-lo-liu-etal-efficientt2mappingwithblipupdownepiandgslidersmst2budagslider-2021","author_short":["Cao, X.","Wang, K.","Liao, C.","Zhang, Z.","Srinivasan Iyer, S.","Chen, Z.","Lo, W.","Liu, H.","He, H.","Setsompop, K.","Zhong, J.","Bilgic, B."],"bibdata":{"bibtype":"article","type":"article","title":"Efficient T2 mapping with blip-up/down EPI and gSlider-SMS (T2 -BUDA-gSlider)","volume":"86","issn":"1522-2594","doi":"10.1002/mrm.28872","abstract":"PURPOSE: To rapidly obtain high isotropic-resolution T2 maps with whole-brain coverage and high geometric fidelity. METHODS: A T2 blip-up/down EPI acquisition with generalized slice-dithered enhanced resolution (T2 -BUDA-gSlider) is proposed. A RF-encoded multi-slab spin-echo (SE) EPI acquisition with multiple TEs was developed to obtain high SNR efficiency with reduced TR. This was combined with an interleaved 2-shot EPI acquisition using blip-up/down phase encoding. An estimated field map was incorporated into the joint multi-shot EPI reconstruction with a structured low rank constraint to achieve distortion-free and robust reconstruction for each slab without navigation. A Bloch simulated subspace model was integrated into gSlider reconstruction and used for T2 quantification. RESULTS: In vivo results demonstrated that the T2 values estimated by the proposed method were consistent with gold standard spin-echo acquisition. Compared to the reference 3D fast spin echo (FSE) images, distortion caused by off-resonance and eddy current effects were effectively mitigated. CONCLUSION: BUDA-gSlider SE-EPI acquisition and gSlider-subspace joint reconstruction enabled distortion-free whole-brain T2 mapping in 2 min at ~1 mm3 isotropic resolution, which could bring significant benefits to related clinical and neuroscience applications.","language":"eng","number":"4","journal":"Magnetic Resonance in Medicine","author":[{"propositions":[],"lastnames":["Cao"],"firstnames":["Xiaozhi"],"suffixes":[]},{"propositions":[],"lastnames":["Wang"],"firstnames":["Kang"],"suffixes":[]},{"propositions":[],"lastnames":["Liao"],"firstnames":["Congyu"],"suffixes":[]},{"propositions":[],"lastnames":["Zhang"],"firstnames":["Zijing"],"suffixes":[]},{"propositions":[],"lastnames":["Srinivasan","Iyer"],"firstnames":["Siddharth"],"suffixes":[]},{"propositions":[],"lastnames":["Chen"],"firstnames":["Zhifeng"],"suffixes":[]},{"propositions":[],"lastnames":["Lo"],"firstnames":["Wei-Ching"],"suffixes":[]},{"propositions":[],"lastnames":["Liu"],"firstnames":["Huafeng"],"suffixes":[]},{"propositions":[],"lastnames":["He"],"firstnames":["Hongjian"],"suffixes":[]},{"propositions":[],"lastnames":["Setsompop"],"firstnames":["Kawin"],"suffixes":[]},{"propositions":[],"lastnames":["Zhong"],"firstnames":["Jianhui"],"suffixes":[]},{"propositions":[],"lastnames":["Bilgic"],"firstnames":["Berkin"],"suffixes":[]}],"month":"October","year":"2021","pmid":"34046924","pmcid":"PMC8295207","keywords":"BUDA, Brain, Brain Mapping, Echo-Planar Imaging, Image Processing, Computer-Assisted, Imaging, Three-Dimensional, T2 map, gSlider, structured low rank","pages":"2064–2075","bibtex":"@article{cao_efficient_2021,\n\ttitle = {Efficient {T2} mapping with blip-up/down {EPI} and {gSlider}-{SMS} ({T2} -{BUDA}-{gSlider})},\n\tvolume = {86},\n\tissn = {1522-2594},\n\tdoi = {10.1002/mrm.28872},\n\tabstract = {PURPOSE: To rapidly obtain high isotropic-resolution T2 maps with whole-brain coverage and high geometric fidelity.\nMETHODS: A T2 blip-up/down EPI acquisition with generalized slice-dithered enhanced resolution (T2 -BUDA-gSlider) is proposed. A RF-encoded multi-slab spin-echo (SE) EPI acquisition with multiple TEs was developed to obtain high SNR efficiency with reduced TR. This was combined with an interleaved 2-shot EPI acquisition using blip-up/down phase encoding. An estimated field map was incorporated into the joint multi-shot EPI reconstruction with a structured low rank constraint to achieve distortion-free and robust reconstruction for each slab without navigation. A Bloch simulated subspace model was integrated into gSlider reconstruction and used for T2 quantification.\nRESULTS: In vivo results demonstrated that the T2 values estimated by the proposed method were consistent with gold standard spin-echo acquisition. Compared to the reference 3D fast spin echo (FSE) images, distortion caused by off-resonance and eddy current effects were effectively mitigated.\nCONCLUSION: BUDA-gSlider SE-EPI acquisition and gSlider-subspace joint reconstruction enabled distortion-free whole-brain T2 mapping in 2 min at {\\textasciitilde}1 mm3 isotropic resolution, which could bring significant benefits to related clinical and neuroscience applications.},\n\tlanguage = {eng},\n\tnumber = {4},\n\tjournal = {Magnetic Resonance in Medicine},\n\tauthor = {Cao, Xiaozhi and Wang, Kang and Liao, Congyu and Zhang, Zijing and Srinivasan Iyer, Siddharth and Chen, Zhifeng and Lo, Wei-Ching and Liu, Huafeng and He, Hongjian and Setsompop, Kawin and Zhong, Jianhui and Bilgic, Berkin},\n\tmonth = oct,\n\tyear = {2021},\n\tpmid = {34046924},\n\tpmcid = {PMC8295207},\n\tkeywords = {BUDA, Brain, Brain Mapping, Echo-Planar Imaging, Image Processing, Computer-Assisted, Imaging, Three-Dimensional, T2 map, gSlider, structured low rank},\n\tpages = {2064--2075},\n}\n\n","author_short":["Cao, X.","Wang, K.","Liao, C.","Zhang, Z.","Srinivasan Iyer, S.","Chen, Z.","Lo, W.","Liu, H.","He, H.","Setsompop, K.","Zhong, J.","Bilgic, B."],"key":"cao_efficient_2021","id":"cao_efficient_2021","bibbaseid":"cao-wang-liao-zhang-srinivasaniyer-chen-lo-liu-etal-efficientt2mappingwithblipupdownepiandgslidersmst2budagslider-2021","role":"author","urls":{},"keyword":["BUDA","Brain","Brain Mapping","Echo-Planar Imaging","Image Processing","Computer-Assisted","Imaging","Three-Dimensional","T2 map","gSlider","structured low rank"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://api.zotero.org/groups/5155355/items?key=wdRV6jYF3Su2tAF5VBdFXEll&format=bibtex&limit=100","dataSources":["HqrAyMdyuGwFAfb4g","993t9HS4C7MTFuCkN"],"keywords":["buda","brain","brain mapping","echo-planar imaging","image processing","computer-assisted","imaging","three-dimensional","t2 map","gslider","structured low rank"],"search_terms":["efficient","mapping","blip","down","epi","gslider","sms","buda","gslider","cao","wang","liao","zhang","srinivasan iyer","chen","lo","liu","he","setsompop","zhong","bilgic"],"title":"Efficient T2 mapping with blip-up/down EPI and gSlider-SMS (T2 -BUDA-gSlider)","year":2021}