2024
Encoding 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 ResearchConceptsBloch-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
2023
Magnetic resonance imaging using a nonuniform Bo (NuBo) field-cycling magnet
Selvaganesan K, Wan Y, Ha Y, Wu B, Hancock K, Galiana G, Constable R. Magnetic resonance imaging using a nonuniform Bo (NuBo) field-cycling magnet. PLOS ONE 2023, 18: e0287344. PMID: 37319289, PMCID: PMC10270621, DOI: 10.1371/journal.pone.0287344.Peer-Reviewed Original ResearchConceptsInnovative data acquisitionMain magnetGradient coilsExperimental verificationEcho signalsInitial designField cyclingParallel imagingSuperior soft tissue contrastMagnetsInhomogeneous fieldsLow fieldsSoft tissue contrastReconstruction approachInhomogeneity effectsData acquisitionSpatial encodingPolarization phaseOpen MR systemPowerful noninvasive diagnostic toolSpin echo signalImage acquisitionFieldCoilNew approach