PMID- 27016025
OWN - NLM
STAT- MEDLINE
DCOM- 20171226
LR  - 20200306
IS  - 1522-2594 (Electronic)
IS  - 0740-3194 (Print)
IS  - 0740-3194 (Linking)
VI  - 77
IP  - 3
DP  - 2017 Mar
TI  - Accelerated phase contrast flow imaging with direct complex difference 
      reconstruction.
PG  - 1036-1048
LID - 10.1002/mrm.26184 [doi]
AB  - PURPOSE: To propose and evaluate a new model-based reconstruction method for 
      highly accelerated phase-contrast magnetic resonance imaging (PC-MRI) with sparse 
      sampling. THEORY AND METHODS: This work presents a new constrained reconstruction 
      method based on low-rank and sparsity constraints to accelerate PC-MRI. More 
      specifically, we formulate the image reconstruction problem into separate 
      reconstructions of flow-reference image sequence and complex differences. We then 
      utilize the joint partial separability and sparsity constraints to enable high 
      quality reconstruction from highly undersampled (k,t)-space data. We further 
      integrate the proposed method with ESPIRiT based parallel imaging model to 
      effectively handle multichannel acquisition. RESULTS: The proposed method was 
      evaluated with in vivo data acquired from both 2D and 3D PC flow imaging 
      experiments, and compared with several state-of-the-art methods. Experimental 
      results demonstrate that the proposed method leads to more accurate velocity 
      reconstruction from highly undersampled (k,t)-space data, and particularly 
      superior capability of capturing the peak velocity of blood flow. In terms of 
      flow visualization, blood flow patterns obtained from the proposed reconstruction 
      also exhibit better agreement with those obtained from the fully sampled 
      reference. CONCLUSION: The proposed method achieves improved accuracy over 
      several state-of-the-art methods for velocity reconstruction with highly 
      accelerated (k,t)-space data. Magn Reson Med 77:1036-1048, 2017. (c) 2016 
      International Society for Magnetic Resonance in Medicine.
CI  - (c) 2016 International Society for Magnetic Resonance in Medicine.
FAU - Sun, Aiqi
AU  - Sun A
AD  - Center for Biomedical Imaging Research, Department of Biomedical Engineering, 
      School of Medicine, Tsinghua University, Beijing, China.
FAU - Zhao, Bo
AU  - Zhao B
AD  - Department of Electrical and Computer Engineering and Beckman Institute for 
      Advanced Science and Technology, University of Illinois at Urbana-Champaign, 
      Urbana, Illinois, USA.
FAU - Ma, Ke
AU  - Ma K
AD  - Center for Biomedical Imaging Research, Department of Biomedical Engineering, 
      School of Medicine, Tsinghua University, Beijing, China.
FAU - Zhou, Zechen
AU  - Zhou Z
AD  - Center for Biomedical Imaging Research, Department of Biomedical Engineering, 
      School of Medicine, Tsinghua University, Beijing, China.
FAU - He, Le
AU  - He L
AD  - Center for Biomedical Imaging Research, Department of Biomedical Engineering, 
      School of Medicine, Tsinghua University, Beijing, China.
FAU - Li, Rui
AU  - Li R
AD  - Center for Biomedical Imaging Research, Department of Biomedical Engineering, 
      School of Medicine, Tsinghua University, Beijing, China.
FAU - Yuan, Chun
AU  - Yuan C
AD  - Center for Biomedical Imaging Research, Department of Biomedical Engineering, 
      School of Medicine, Tsinghua University, Beijing, China.
AD  - Vascular Imaging Lab, Department of Radiology, University of Washington, Seattle, 
      Washington, USA.
LA  - eng
GR  - R01 EB013695/EB/NIBIB NIH HHS/United States
GR  - R01 HL103609/HL/NHLBI NIH HHS/United States
PT  - Evaluation Study
PT  - Journal Article
DEP - 20160326
PL  - United States
TA  - Magn Reson Med
JT  - Magnetic resonance in medicine
JID - 8505245
SB  - IM
MH  - Adult
MH  - *Algorithms
MH  - Aorta/anatomy & histology/*physiology
MH  - Blood Flow Velocity/*physiology
MH  - Female
MH  - Humans
MH  - Image Enhancement/*methods
MH  - Image Interpretation, Computer-Assisted/*methods
MH  - Magnetic Resonance Angiography/*methods
MH  - Male
MH  - Reproducibility of Results
MH  - Sensitivity and Specificity
MH  - Subtraction Technique
MH  - Young Adult
PMC - PMC5734924
MID - NIHMS914140
OTO - NOTNLM
OT  - complex differences
OT  - low-rank modeling
OT  - model-based reconstruction
OT  - parallel imaging
OT  - partial separability
OT  - phase-contrast MRI
OT  - sparsity
EDAT- 2016/03/27 06:00
MHDA- 2017/12/27 06:00
PMCR- 2017/12/18
CRDT- 2016/03/27 06:00
PHST- 2015/05/07 00:00 [received]
PHST- 2016/01/31 00:00 [revised]
PHST- 2016/02/05 00:00 [accepted]
PHST- 2016/03/27 06:00 [pubmed]
PHST- 2017/12/27 06:00 [medline]
PHST- 2016/03/27 06:00 [entrez]
PHST- 2017/12/18 00:00 [pmc-release]
AID - 10.1002/mrm.26184 [doi]
PST - ppublish
SO  - Magn Reson Med. 2017 Mar;77(3):1036-1048. doi: 10.1002/mrm.26184. Epub 2016 Mar 
      26.