2024
bSSFP Phase Contrast (PC-SSFP) at 0.55T Applied to Aortic Flow
Xiang J, Ramasawmy R, Seemann F, Peters D, Campbell-Washburn A. bSSFP Phase Contrast (PC-SSFP) at 0.55T Applied to Aortic Flow. Journal Of Cardiovascular Magnetic Resonance 2024, 101098. PMID: 39278416, DOI: 10.1016/j.jocmr.2024.101098.Peer-Reviewed Original ResearchBalanced steady state free precessionPhase contrastGradient momentsBreath-holdFree-breathing protocolFree breathingGradient echoCardiac outputFree precessionStroke volumeAortic flow quantificationAortic flowPhantomSteady state free precessionSpoiled gradient echoFlow imagingMeasured aortic flowFraction measurementsTeHealthy volunteersVelocity measurementsPlanimetry measurementsCardiac MRHealthy subjectsIncreased SNRConstrained 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 function
2006
Inversion recovery radial MRI with interleaved projection sets
Peters DC, Botnar RM, Kissinger KV, Yeon SB, Appelbaum EA, Manning WJ. Inversion recovery radial MRI with interleaved projection sets. Magnetic Resonance In Medicine 2006, 55: 1150-1156. PMID: 16598720, DOI: 10.1002/mrm.20865.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsArtificial IntelligenceCluster AnalysisHumansImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalInformation Storage and RetrievalMagnetic Resonance ImagingMyocardial InfarctionPhantoms, ImagingReproducibility of ResultsSensitivity and SpecificityUser-Computer InterfaceConceptsRadial trajectoriesK-space weightingRadial imagingCentral k-space dataImage contrastAcquisition windowMagnetization changesK-space dataPulsesImaging methodInversion pulseProjection setsRadial MRIInterleaved acquisitionBetter image qualityImage qualityPreparation pulseRadial acquisitionImagingT1 weightingMotion artifactsMultiple contrastsWindowPhantomViability imaging