2014
Attenuation Correction for Flexible Magnetic Resonance Coils in Combined Magnetic Resonance/Positron Emission Tomography Imaging
Eldib M, Bini J, Calcagno C, Robson PM, Mani V, Fayad ZA. Attenuation Correction for Flexible Magnetic Resonance Coils in Combined Magnetic Resonance/Positron Emission Tomography Imaging. Investigative Radiology 2014, 49: 63-69. PMID: 24056110, PMCID: PMC4011564, DOI: 10.1097/rli.0b013e3182a530f8.Peer-Reviewed Original ResearchConceptsMagnetic resonance coilVolume splineResonance coilsMR coilPhantom experimentsSuch coilsUniform cylindrical water phantomMR/PET systemAttenuation propertiesCoilLocal overestimationAttenuation mapFlexible coilCylindrical water phantomPhantom findingsLocal underestimationRegistration methodAccurate measurementField of viewCT-based attenuation mapPhantom scansWater phantomAttenuation correctionSurfaceNovel method
2013
Preclinical Evaluation of MR Attenuation Correction Versus CT Attenuation Correction on a Sequential Whole-Body MR/PET Scanner
Bini J, Izquierdo-Garcia D, Mateo J, Machac J, Narula J, Fuster V, Fayad ZA. Preclinical Evaluation of MR Attenuation Correction Versus CT Attenuation Correction on a Sequential Whole-Body MR/PET Scanner. Investigative Radiology 2013, 48: 313-322. PMID: 23296082, PMCID: PMC3638002, DOI: 10.1097/rli.0b013e31827a49ba.Peer-Reviewed Original ResearchConceptsPET scannerPositron emission tomography (PET) systemsEmpirical attenuation coefficientsEmission tomography systemAttenuation correctionPET attenuation correctionCTAC methodsTomography systemPhoton attenuationAnimal bedAttenuation coefficientProton densityDirect informationMR/PET imagesCT attenuation correctionLarge bone structuresSUV maximumCoregistered CT imagesAttenuation mapPET imagesQuantitative PETCorrectionScannerMagnetic resonanceTomographic images
2012
Radial k-space Acquisition Improves Robustness of MR-based Attenuation Maps for MR/PET Quantification in an Animal Imaging Study of the Abdomen
Bini J, Robson P, Calcagno C, Millon A, Lobatto M, Fayad Z. Radial k-space Acquisition Improves Robustness of MR-based Attenuation Maps for MR/PET Quantification in an Animal Imaging Study of the Abdomen. 2012, 1-6. DOI: 10.1109/spmb.2012.6469451.Peer-Reviewed Original ResearchMR/PET systemAttenuation mapRadial k-space acquisitionCartesian k-space trajectoriesReconstructed PET imagesAnimal imaging studiesK-space trajectoriesK-space acquisitionInterest-based comparisonPhoton attenuationPET systemPreclinical imagingAccurate segmentationPositron emission tomographyAttenuation correctionStandard segmentation algorithmsCartesian acquisitionExhibit artifactsPET quantificationQuantitative measurementsQuantitative positron emission tomography