2017
GATE simulation of a new design of pinhole SPECT system for small animal brain imaging
Ozsahin D, Bläckberg L, Fakhri G, Sabet H. GATE simulation of a new design of pinhole SPECT system for small animal brain imaging. Journal Of Instrumentation 2017, 12: c01085-c01085. DOI: 10.1088/1748-0221/12/01/c01085.Peer-Reviewed Original ResearchFWHM spatial resolutionDetector modulesSPECT systemNEMA NU-4 protocolImage quality simulationsIntrinsic detector resolutionSpatial resolutionPinhole SPECT systemSmall-animal SPECT imagingAnimal SPECT imagingStationary SPECT systemAnimal brain imagingSmall animal brain imagingSmall animal imagingDetector resolutionSPECT detectorGATE simulationsDetector sizeSystem sensitivityPhantom evaluationResolution recoveryFOV sizeDetectorAnimal imagingFWHM
2005
Performance of a novel collimator for high‐sensitivity brain SPECT
Fakhri G, Ouyang J, Zimmerman R, Fischman A, Kijewski M. Performance of a novel collimator for high‐sensitivity brain SPECT. Medical Physics 2005, 33: 209-215. PMID: 16485427, DOI: 10.1118/1.2143140.Peer-Reviewed Original ResearchConceptsSphere activity concentrationNPW-SNRStandard collimatorSphere-to-background activity ratiosAttenuation of countsPhantom centerActivity concentrationsPoint spread functionCentral regionCollimatorPhantom studyStriatal phantomCylindrical backgroundResolution recoveryPhantomSpherical lesionsRamp filterCrystal surfaceSpread functionSignal-to-noise ratioCentral brain structuresFitting imageHealthy volunteersBrain SPECTSphere activity