2024
High-quality lipid suppression and B0 shimming for human brain 1H MRSI
Kumaragamage C, McIntyre S, Nixon T, De Feyter H, de Graaf R. High-quality lipid suppression and B0 shimming for human brain 1H MRSI. NeuroImage 2024, 300: 120845. PMID: 39276817, PMCID: PMC11540284, DOI: 10.1016/j.neuroimage.2024.120845.Peer-Reviewed Original ResearchOuter volume suppressionInner volume selectionSlice coverageField shimmingLipid suppressionMRSI acquisitionMagnetic field shimmingMagnetic resonance spectroscopic imagingSpherical harmonic fieldsBrain non-invasivelyAxial coverageMulti-coilRadio frequencyVolume suppressionB0 shimmingBrain coverageGradient coilsHarmonic fieldVolume selectionGradient insertShimming performancePhantom experimentsField variationsSpectroscopic imagingProton magnetic resonance spectroscopic imagingA Pilot Study of Insert Nonlinear Diffusion Gradient Coil on Calf Imaging
Zhang H, Elsaid N, Nixon T, Constable R, Sinusas A, Galiana G. A Pilot Study of Insert Nonlinear Diffusion Gradient Coil on Calf Imaging. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/0496.Peer-Reviewed Original ResearchDesign of novel loop coil array for B0 and gradient field generation
Ha Y, Samardzija A, Sun C, Sun H, Gross R, Galiana G, Constable R. Design of novel loop coil array for B0 and gradient field generation. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/2833.Peer-Reviewed Original Research
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 approachDiffusion Weighted Imaging using a Prostate Nonlinear Gradient Coil
Elsaid N, Nixon T, Dewdney A, De Simone A, Fettahoglu A, Galiana G. Diffusion Weighted Imaging using a Prostate Nonlinear Gradient Coil. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/4575.Peer-Reviewed Original ResearchMulti-echo RF spatial phase encoding for gradient-free imaging in a nonuniform B0-field at low-field
Selvaganesan K, Ha Y, Sun C, Samardzija A, Zhang Z, Sun H, Galiana G, Constable T. Multi-echo RF spatial phase encoding for gradient-free imaging in a nonuniform B0-field at low-field. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/0532.Peer-Reviewed Original ResearchIn vivo demonstration of arbitrary ROI shaping and B0 shimming with MC-ECLIPSE for applications in human brain proton MRSI
Kumaragamage C, McIntyre S, Nixon T, De Feyter H, de Graaf R. In vivo demonstration of arbitrary ROI shaping and B0 shimming with MC-ECLIPSE for applications in human brain proton MRSI. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/1238.Peer-Reviewed Original ResearchOn‐site construction of a point‐of‐care low‐field MRI system in Africa
Obungoloch J, Muhumuza I, Teeuwisse W, Harper J, Etoku I, Asiimwe R, Tusiime P, Gombya G, Mugume C, Namutebi M, Nassejje M, Nayebare M, Kavuma J, Bukyana B, Natukunda F, Ninsiima P, Muwanguzi A, Omadi P, van Gijzen M, Schiff S, Webb A, O'Reilly T. On‐site construction of a point‐of‐care low‐field MRI system in Africa. NMR In Biomedicine 2023, 36: e4917. PMID: 36914258, PMCID: PMC10330026, DOI: 10.1002/nbm.4917.Peer-Reviewed Original Research
2020
Dynamic multicoil technique (DYNAMITE) MRI on human brain
Juchem C, Theilenberg S, Kumaragamage C, Mullen M, DelaBarre L, Adriany G, Brown PB, McIntyre S, Nixon TW, Garwood M, de Graaf R. Dynamic multicoil technique (DYNAMITE) MRI on human brain. Magnetic Resonance In Medicine 2020, 84: 2953-2963. PMID: 32544274, PMCID: PMC8168279, DOI: 10.1002/mrm.28323.Peer-Reviewed Original ResearchConceptsGradient coilsConventional gradient coilsField controlMagnetic field gradientImage fidelityShim systemBiot-Savart lawFirst realizationCylindrical surfaceCoil technologyGradient technologyImage distortion correctionGradient fieldGradient errorsField imperfectionsHuman headCoilGeometric deformationMR environmentField gradientLinear xDistortion correctionResolution phantomSpatial encodingNumerical integration
1991
MR imaging of microcirculation in rat brain: Correlation with carbon dioxide‐induced changes in blood flow
Maki J, Benveniste H, Macfall J, Piantadosi C, Johnson G. MR imaging of microcirculation in rat brain: Correlation with carbon dioxide‐induced changes in blood flow. Journal Of Magnetic Resonance Imaging 1991, 1: 673-681. PMID: 1823172, DOI: 10.1002/jmri.1880010609.Peer-Reviewed Original ResearchConceptsCerebral blood flowRat cerebral blood flowBlood flowArterial carbon dioxide pressureLaser Doppler flowmetry studyMR imaging studiesMagnetic resonance imaging techniquesRat brainLDF valuesCarbon dioxide pressureImaging studiesMR imagingTissue microcirculationImaging valuesPaCO2MicrocirculationQualitative pictureMotion sensitivityPresent studyCarbon dioxide-induced changeImaging techniquesFC techniqueRat motionsGradient coilsImaging
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