2024
Accelerated 3D metabolite T1 mapping of the brain using variable‐flip‐angle SPICE
Zhao Y, Li Y, Guo R, Jin W, Sutton B, Ma C, Fakhri G, Li Y, Luo J, Liang Z. Accelerated 3D metabolite T1 mapping of the brain using variable‐flip‐angle SPICE. Magnetic Resonance In Medicine 2024, 92: 1310-1322. PMID: 38923032, DOI: 10.1002/mrm.30200.Peer-Reviewed Original ResearchConceptsLow-rank tensor modelGeneralized series modelMetabolite TExperimental resultsBrain metabolitesClinically acceptable scan timeEfficient encodingPhantom experimental resultsAcceptable scan timeNoisy dataSparse samplingImaging problemsData processingHealthy subject dataVariable flip angleFlip angleTensor modelSaturation effectsQuantitative metabolic imagingMRSI techniquePhantomScan timeData acquisitionMetabolic imagingT1 mapping
2015
Spectral Estimation for Magnetic Resonance Spectroscopic Imaging with Spatial Sparsity Constraints
Ning Q, Ma C, Liang Z. Spectral Estimation for Magnetic Resonance Spectroscopic Imaging with Spatial Sparsity Constraints. 2015, 1482-1485. DOI: 10.1109/isbi.2015.7164157.Peer-Reviewed Original ResearchSignal-to-noise ratioState-of-the-art methodsState-of-the-artLow signal-to-noise ratioSpatial sparsity constraintsJoint estimation problemSpectral estimationRegularization frameworkSparsity constraintEstimation accuracyEstimation problemRobust solutionExperimental resultsSpatial constraintsModel nonlinearityConstraintsSpectral characteristicsQuantitative problemsImagesParametersNonlinearitySimulation
2010
Joint design of spoke trajectories and RF pulses for parallel excitation
Ma C, Xu D, King K, Liang Z. Joint design of spoke trajectories and RF pulses for parallel excitation. Magnetic Resonance In Medicine 2010, 65: 973-985. PMID: 21413061, DOI: 10.1002/mrm.22676.Peer-Reviewed Original ResearchConceptsJoint design problemExcitation errorsTransmitting sensitivityJoint designCost function evaluationsExcitation systemDesign problemRF pulse designSelection problemMultidimensional RF pulsesExperimental resultsComputational efficiencyRF pulsesPulse designThin slice selectionEquation simulationsBloch equation simulationsSequential selectionConventional methodsSpoke locationExcitation patternsK-spacePulseFunction evaluationsLength limit