2022
Bias-free T1 Mapping via Simultaneously Estimating Bloch-Siegert and Magnetization Transfer Effects
Jang A, Han P, Ma C, El Fakhri G, Liu F. Bias-free T1 Mapping via Simultaneously Estimating Bloch-Siegert and Magnetization Transfer Effects. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2022 DOI: 10.58530/2022/0621.Peer-Reviewed Original Research
2016
Adiabatic RF Pulses
de Graaf R. Adiabatic RF Pulses. 2016, 1003-1014. DOI: 10.1002/9780470034590.emrstm1443.Peer-Reviewed Original ResearchAdiabatic RF pulsesRF pulsesImmunity to RF inhomogeneityAdiabatic full passage pulsesRadio frequency pulsesOuter volume suppressionRF inhomogeneityVolume suppressionBroadband decouplingRefocusing propertiesFrequency pulsesFrequency modulation functionPulseAdiabatic conditionsAmplitude-Spatial localizationMagnetizationInhomogeneityModulation functionFrequency offsetFrequencyRefocusingRotationDecouplingCHAPTER 4 B 0 Shimming Technology
de Graaf R, Juchem C. CHAPTER 4 B 0 Shimming Technology. New Developments In NMR 2016, 166-207. DOI: 10.1039/9781782623878-00166.Peer-Reviewed Original Research
2015
SU‐E‐T‐661: Quantitative MRI Assessment of a Novel Direction‐Modulated Brachytherapy Tandem Applicator for Cervical Cancer
Soliman A, Elzibak A, Fatemi A, Safigholi H, Han D, Leung E, Ravi A, Song W. SU‐E‐T‐661: Quantitative MRI Assessment of a Novel Direction‐Modulated Brachytherapy Tandem Applicator for Cervical Cancer. Medical Physics 2015, 42: 3488-3488. DOI: 10.1118/1.4925024.Peer-Reviewed Original ResearchDirection modulated brachytherapyWater phantomLine profilesBrachytherapy of cervical cancerMulti-channel receiver coilsMRI-guided brachytherapyTurbo spin echoCervical cancerMR image qualityImage guided brachytherapyBackground inhomogeneityFull-widthPhantomTandem applicationsFWHMT2-weighted imagesT2-weighted sequencesBody coilSusceptibility artifactsQuantitative MRI assessmentReceiver coilClinical imaging protocolsMRI scanning protocolMR scannerInhomogeneity
2013
Intramolecular zero‐quantum‐coherence 2D NMR spectroscopy of lipids in the human breast at 7 T
de Graaf R, Klomp D, Luijten P, Boer V. Intramolecular zero‐quantum‐coherence 2D NMR spectroscopy of lipids in the human breast at 7 T. Magnetic Resonance In Medicine 2013, 71: 451-457. PMID: 23468435, DOI: 10.1002/mrm.24701.Peer-Reviewed Original ResearchConceptsMagnetic field homogeneityZero-quantum coherencesMagnetic field inhomogeneityField homogeneityField inhomogeneityNavigator echo correctionHuman breastEcho correctionSusceptible boundariesSpectra in vivoHuman breast tissueLipid profileInhomogeneityBreast tissueBreastIn vivoIn vitroLipid signalingSpectraNMR spectraMRSSubjectsNMR
2011
Multislice 1H MRSI of the human brain at 7 T using dynamic B0 and B1 shimming
Boer VO, Klomp DW, Juchem C, Luijten PR, de Graaf RA. Multislice 1H MRSI of the human brain at 7 T using dynamic B0 and B1 shimming. Magnetic Resonance In Medicine 2011, 68: 662-670. PMID: 22162089, PMCID: PMC3306521, DOI: 10.1002/mrm.23288.Peer-Reviewed Original ResearchConceptsMagnetic fieldRadio frequency power depositionHigh magnetic fieldsMagnetic field shimmingRadio frequency controlUltra-high fieldMagnetic field inhomogeneityChemical shift resolutionMagnetic field homogeneityField shimmingPower depositionSpectroscopic imaging sequenceField inhomogeneityNew acquisition strategyField homogeneitySpectroscopic imagingShimmingInhomogeneityFieldDynamic B0Nutation angleHigh sensitivityB0ImagingImaging sequence
2009
SUSCEPTIBILITY, ECHO TIME SHIFTS, AND T2* CONSIDERATIONS FOR FUNCTIONAL MAGNETIC RESONANCE IMAGING
Sutton B, Zhuo Y. SUSCEPTIBILITY, ECHO TIME SHIFTS, AND T2* CONSIDERATIONS FOR FUNCTIONAL MAGNETIC RESONANCE IMAGING. 2009, 710-713. DOI: 10.1109/isbi.2009.5193146.Peer-Reviewed Original ResearchEffect on BOLD Sensitivity Due to Susceptibility-induced Echo Time Shift in Spiral-in Based Functional MRI
Zhuo Y, Sutton B. Effect on BOLD Sensitivity Due to Susceptibility-induced Echo Time Shift in Spiral-in Based Functional MRI. Annual International Conference Of The IEEE Engineering In Medicine And Biology Society (EMBC) 2009, 2009: 4449-4452. PMID: 19964630, DOI: 10.1109/iembs.2009.5333815.Peer-Reviewed Original ResearchConceptsEffective echo timeBOLD sensitivityEcho time shiftsSusceptibility gradientsSpiral-in trajectoryMagnetic field inhomogeneityBOLD functional magnetic resonance imagingEcho timeSusceptibility artifactsSpiral-inAir/tissue interfacesField inhomogeneityFunctional magnetic resonance imagingIn-planeBlood oxygen levelReconstructed imagesGeometric distortionSignal lossTime shiftsVentral brainBOLDInhomogeneityShiftOrbitofrontal cortex
2005
SU‐FF‐T‐352: An Analytic Algorithm for Dose Calculation in An Inhomogeneous Medium
Fan Y, Nath R. SU‐FF‐T‐352: An Analytic Algorithm for Dose Calculation in An Inhomogeneous Medium. Medical Physics 2005, 32: 2031-2031. DOI: 10.1118/1.1998081.Peer-Reviewed Original ResearchScatter doseDose distributionPoint kernelsCollapsed cone convolutionCalculated dose distributionsInhomogeneous mediaMonte Carlo resultsSuperposition/convolution algorithmPENELOPE codePhoton directionBone inhomogeneitiesDose calculationDensity scalingHomogeneous mediumAnalytical algorithmAnalytical calculationsLung materialLung inhomogeneityMonte CarloScatteringInhomogeneityPrimary doseScale factorTotal doseMonteBrain Tissue Segmentation Based on Corrected Gray-Scale Analysis
Wang J, Qiu M, Papademetris X, Constable R. Brain Tissue Segmentation Based on Corrected Gray-Scale Analysis. Annual International Conference Of The IEEE Engineering In Medicine And Biology Society (EMBC) 2005, 2005: 3027-3030. PMID: 17282881, DOI: 10.1109/iembs.2005.1617112.Peer-Reviewed Original Research
2000
Electron Beam Commissioning for Monte Carlo Dose Calculation
Deng J, Jiang S, Pawlicki T, Li J, Ma C. Electron Beam Commissioning for Monte Carlo Dose Calculation. 2000, 431-433. DOI: 10.1007/978-3-642-59758-9_163.Peer-Reviewed Original ResearchMonte Carlo methodPencil beam algorithmCarlo methodElectron beam dose calculationsBeam algorithmVariance reduction techniquesPhoton dose calculationsMonte Carlo dose calculationsDose calculationsPresence of inhomogeneitiesInhomogeneous phantomsReduction techniquesAccurate approachBeam commissioningTreatment planning systemCalculationsAlgorithmDose modelElectronsElectron transportComputer technologyInhomogeneityLarge discrepanciesPlanning system
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