2024
Constrained alternating minimization for parameter mapping (CAMP)
Elsaid N, Dispenza N, Hu C, Peters D, Constable R, Tagare H, Galiana G. Constrained alternating minimization for parameter mapping (CAMP). Magnetic Resonance Imaging 2024, 110: 176-183. PMID: 38657714, PMCID: PMC11193090, DOI: 10.1016/j.mri.2024.04.029.Peer-Reviewed Original ResearchConceptsAlternating minimizationAccelerated parameter mappingImage qualityReconstructed image qualityEfficient reconstruction algorithmSacrificing model accuracyParameter mapsPhantom studyK-space samplingAcceleration datasetsK-spaceUndersampling artifactsCartesian acquisitionConsecutive imagesReconstruction algorithmIndividual imagesModel cost functionExponential decayEcho timeReconstruction methodCost functionReduce artifactsPhantomScan timeObjective functionEncoding scheme design for gradient-free, nonlinear projection imaging using Bloch-Siegert RF spatial encoding in a low-field, open MRI system
Selvaganesan K, Ha Y, Sun H, Zhang Z, Sun C, Samardzija A, Galiana G, Constable R. Encoding scheme design for gradient-free, nonlinear projection imaging using Bloch-Siegert RF spatial encoding in a low-field, open MRI system. Scientific Reports 2024, 14: 3307. PMID: 38332252, PMCID: PMC10853509, DOI: 10.1038/s41598-024-53703-y.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsArtifactsImage Processing, Computer-AssistedMagnetic Resonance ImagingPhantoms, ImagingConceptsBloch-SiegertSpatial encodingBloch-Siegert shiftGradient-freeLow-field imagesLow fieldsProjection imagesPhase shiftLoop coilEncoding settingsEncoding schemeEncoding trajectoriesLow-field MR imagingSpatial resolutionImage reconstructionOptimization algorithmEncodingMRI systemShift effectHardware setupMR systemOpen MRI systemScheme designAlgorithmImages
2000
Accurate alignment of functional EPI data to anatomical MRI using a physics-based distortion model
Studholme C, Constable R, Duncan J. Accurate alignment of functional EPI data to anatomical MRI using a physics-based distortion model. IEEE Transactions On Medical Imaging 2000, 19: 1115-1127. PMID: 11204849, DOI: 10.1109/42.896788.Peer-Reviewed Original Research
1999
Analysis ofJCoupling-Induced Fat Suppression in DIET Imaging
Stables L, Kennan R, Anderson A, Constable R, Gore J. Analysis ofJCoupling-Induced Fat Suppression in DIET Imaging. Journal Of Magnetic Resonance 1999, 136: 143-151. PMID: 9986756, DOI: 10.1006/jmre.1998.1628.Peer-Reviewed Original Research
1997
Measurement of the point spread function in MRI using constant time imaging
Robson M, Gore J, Constable R. Measurement of the point spread function in MRI using constant time imaging. Magnetic Resonance In Medicine 1997, 38: 733-740. PMID: 9358447, DOI: 10.1002/mrm.1910380509.Peer-Reviewed Original Research
1996
Three‐dimensional strain‐rate imaging
Robson M, Constable R. Three‐dimensional strain‐rate imaging. Magnetic Resonance In Medicine 1996, 36: 537-546. PMID: 8892204, DOI: 10.1002/mrm.1910360406.Peer-Reviewed Original ResearchMeSH KeywordsEcho-Planar ImagingHeartHumansMagnetic Resonance ImagingModels, TheoreticalMyocardiumPhantoms, ImagingConceptsInteraction of velocityMeasurements of velocityRange of velocitiesVelocity yieldsDynamic behaviorVelocity gradientRange of phasesDependent velocityVelocityVelocity gradient methodLarge velocitiesVelocity variationsPlane measurementsHigh accuracyMagnitude variationGradient methodRandom noiseMR signalGradientVoxel sizeDeformation