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, PMCID: PMC12120684, 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
2023
Magnetization-Prepared Golden-angle RAdial Sparse Parallel (MP-GRASP) MRI for Rapid Free-Breathing 3D T1 Mapping of Renal Allografts
Bane O, Feng L, Xia D, Al-Mubarak H, Cuevas J, Muthukumar T, Dyke J, Menon M, Farouk S, Taouli B, Lewis S. Magnetization-Prepared Golden-angle RAdial Sparse Parallel (MP-GRASP) MRI for Rapid Free-Breathing 3D T1 Mapping of Renal Allografts. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/1286.Peer-Reviewed Original ResearchGolden-angle radial sparse parallel imagingVariable flip angleCortico-medullary differentiationGolden-angle radial sparse parallelRenal allograftsRenal transplantationT1 mappingGold standardFlip anglePatientsT1 quantificationSpatial resolutionParallel imagingPhantomAcquisition timeVariable flip angle methodAccurate T1 estimationAllograftT1 estimationTransplantation
2021
Sensitivity of Myocardial Radiomic Features to Imaging Parameters in Cardiac MR Imaging
Jang J, El‐Rewaidy H, Ngo L, Mancio J, Csecs I, Rodriguez J, Pierce P, Goddu B, Neisius U, Manning W, Nezafat R. Sensitivity of Myocardial Radiomic Features to Imaging Parameters in Cardiac MR Imaging. Journal Of Magnetic Resonance Imaging 2021, 54: 787-794. PMID: 33650227, PMCID: PMC9190024, DOI: 10.1002/jmri.27581.Peer-Reviewed Original ResearchConceptsRadiomic featuresIn-plane spatial resolutionImaging parametersSpatial resolutionBalanced steady-state free precessionCardiac magnetic resonanceIn-plane resolutionStandardized mean differenceSteady-state free precessionParallel imaging techniquesFlip angleCardiac MRCardiac MR imagesFree precessionMean differenceSlice thicknessMR imagingMagnetic resonanceCalculated valuesMyocardial contoursSequence parametersImaging techniquesWavelet filters
2015
Inter-Slice Blood Flow and Magnetization Transfer Effects as A New Simultaneous Imaging Strategy
Han P, Barker J, Kim K, Choi S, Bae K, Park S. Inter-Slice Blood Flow and Magnetization Transfer Effects as A New Simultaneous Imaging Strategy. PLOS ONE 2015, 10: e0140560. PMID: 26466316, PMCID: PMC4605487, DOI: 10.1371/journal.pone.0140560.Peer-Reviewed Original ResearchConceptsAlternate ascending/descending directional navigationPseudo-continuous ASLBlood flowPulsed ASL methodClinically reasonable timeMT asymmetryBlood flow signalsMaps of blood flowSimultaneous blood flowCerebral blood flow signalsPreparation RF pulseFlip anglePerfusion signalBSSFP readoutMT ratioFlow signalsImaging strategiesMagnetization transferASL methodLabeling planeRF pulsesMagnetization transfer effectsSuperposition of signalsInvestigation of Inter-Slice Magnetization Transfer Effects as a New Method for MTR Imaging of the Human Brain
Barker J, Han P, Choi S, Bae K, Park S. Investigation of Inter-Slice Magnetization Transfer Effects as a New Method for MTR Imaging of the Human Brain. PLOS ONE 2015, 10: e0117101. PMID: 25664938, PMCID: PMC4321840, DOI: 10.1371/journal.pone.0117101.Peer-Reviewed Original ResearchConceptsBalanced steady-state free precessionFlip angleMagnetization transferMagnetization transfer effectsSteady-state free precessionSaturation pulseModel of MTFree precessionMT-weightedAcquisition parametersMT effectMT ratioDelay timePrecessionMTR imagesHigh SNRInterslicePE stepsMagnetizationFlip
2004
Dynamic Imaging of Perfusion and Oxygenation by Functional Magnetic Resonance Imaging
Kida I, Maciejewski P, Hyder F. Dynamic Imaging of Perfusion and Oxygenation by Functional Magnetic Resonance Imaging. Cerebrovascular And Brain Metabolism Reviews 2004, 24: 1369-1381. DOI: 10.1097/00004647-200412000-00006.Peer-Reviewed Original ResearchT1-weighted MRI signalPeak CBF responseLaser Doppler measurementsBlood oxygenation level-dependent (BOLD) image contrastApparent longitudinal relaxation timeGood agreementTransfer functionImage contrastAngle dataStationary spinsExcitation flip angleMRI signalMRI schemeSignalsSimultaneous imagingWaterAngleRelaxation timeFlip angleMagnetic labelingDifferent flip anglesMeasurementsWater functions
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