2022
Roadmap: helium ion therapy
Mairani A, Mein S, Blakely E, Debus J, Durante M, Ferrari A, Fuchs H, Georg D, Grosshans DR, Guan F, Haberer T, Harrabi S, Horst F, Inaniwa T, Karger CP, Mohan R, Paganetti H, Parodi K, Sala P, Schuy C, Tessonnier T, Titt U, Weber U. Roadmap: helium ion therapy. Physics In Medicine And Biology 2022, 67: 15tr02. PMID: 35395649, DOI: 10.1088/1361-6560/ac65d3.Peer-Reviewed Original ResearchConceptsHelium ion beamHeavy ion therapyIon beam therapyHelium ionsIon beamIon therapyRelative biological effectivenessHeavy ion beamsLawrence Berkeley National LaboratoryCarbon ion beamsHelium ion therapyDifferent particle speciesBerkeley National LaboratoryClinical proton beamsCarbon ion therapyLinear energy transferHigh relative biological effectivenessSharp lateral penumbraHigh penetration depthLateral scatteringNeon ionsBeam therapyProton beamParticle speciesTerms of physics
2021
Uncertainty in tissue equivalent proportional counter assessments of microdosimetry and RBE estimates in carbon radiotherapy
Hartzell S, Guan F, Taylor P, Peterson C, Taddei P, Kry S. Uncertainty in tissue equivalent proportional counter assessments of microdosimetry and RBE estimates in carbon radiotherapy. Physics In Medicine And Biology 2021, 66: 155018. PMID: 34252894, DOI: 10.1088/1361-6560/ac1366.Peer-Reviewed Original ResearchConceptsTissue equivalent proportional counterCommon mathematical modelPerturbed valuesMicrodosimetric kinetic modelLow-energy cutMonte Carlo toolkitMathematical modelCounting statisticsCentral beam axisEnergy deposition distributionsStatistic uncertaintyInput parametersTherapeutic carbon beamsLineal energy valuesCarbon beamBeam axisTEPC measurementsSources of uncertaintyWall effectsModel input parametersMicrodosimetric spectraInherent uncertaintyRelative biological effectivenessUncertaintyCarbon radiotherapy
2020
Mapping the Relative Biological Effectiveness of Proton, Helium and Carbon Ions with High-Throughput Techniques
Bronk L, Guan F, Patel D, Ma D, Kroger B, Wang X, Tran K, Yiu J, Stephan C, Debus J, Abdollahi A, Jäkel O, Mohan R, Titt U, Grosshans DR. Mapping the Relative Biological Effectiveness of Proton, Helium and Carbon Ions with High-Throughput Techniques. Cancers 2020, 12: 3658. PMID: 33291477, PMCID: PMC7762185, DOI: 10.3390/cancers12123658.Peer-Reviewed Original ResearchHeidelberg Ion Beam Therapy CenterRelative biological effectivenessCarbon ionsDose-mean lineal energyDose-averaged linear energy transferBiological effectivenessLinear energy transferMonte Carlo systemHelium ionsParticle beamsLineal energyBeam pathBragg peakMaximum relative biological effectivenessEnergy transferProtonsHeliumIonsTherapy CenterBeamExperimental platformSpatial distributionEnergyExperimental resultsSub
2019
Using the Proton Energy Spectrum and Microdosimetry to Model Proton Relative Biological Effectiveness
Newpower M, Patel D, Bronk L, Guan F, Chaudhary P, McMahon SJ, Prise KM, Schettino G, Grosshans DR, Mohan R. Using the Proton Energy Spectrum and Microdosimetry to Model Proton Relative Biological Effectiveness. International Journal Of Radiation Oncology • Biology • Physics 2019, 104: 316-324. PMID: 30731186, PMCID: PMC6499683, DOI: 10.1016/j.ijrobp.2019.01.094.Peer-Reviewed Original ResearchConceptsProton energy spectraMicrodosimetric kinetic modelDose-mean lineal energyRelative biological effectivenessProton irradiation experimentsEnergy spectrumLineal energyLineal energy yIrradiation experimentsLineal energy distributionsDose-averaged linear energy transferBiological effectivenessDifferent proton energiesLinear energy transferRBE modelsProton energyBragg curveEnergy distributionGeant4-DNAProton irradiationRBE data
2017
Optimization of Monte Carlo particle transport parameters and validation of a novel high throughput experimental setup to measure the biological effects of particle beams
Patel D, Bronk L, Guan F, Peeler CR, Brons S, Dokic I, Abdollahi A, Rittmüller C, Jäkel O, Grosshans D, Mohan R, Titt U. Optimization of Monte Carlo particle transport parameters and validation of a novel high throughput experimental setup to measure the biological effects of particle beams. Medical Physics 2017, 44: 6061-6073. PMID: 28880368, DOI: 10.1002/mp.12568.Peer-Reviewed Original ResearchRadiobiological issues in proton therapy
Mohan R, Peeler CR, Guan F, Bronk L, Cao W, Grosshans DR. Radiobiological issues in proton therapy. Acta Oncologica 2017, 56: 1367-1373. PMID: 28826292, PMCID: PMC5842809, DOI: 10.1080/0284186x.2017.1348621.Peer-Reviewed Original ResearchConceptsClinical practiceClinical evidenceProton therapyProton relative biological effectivenessClear clinical evidenceCurrent clinical practiceRelative biological effectivenessIntensity-modulated proton therapyMore patientsTherapeutic ratioUnforeseen toxicityTreatment planTherapyVariable relative biological effectivenessEffective dose distributionRadiation dosePatientsDoseCell typesEstimation of doseDose distributionParticle therapyRadiobiological issuesRBE variabilityEvidence