CT Number Accuracy and Association With Object Size: A Phantom Study Comparing Energy-Integrating Detector CT and Deep Silicon Photon-Counting Detector CT
A. M. Salyapongse, Sean D. Rose, Perry J. Pickhardt, Meghan G. Lubner, Giuseppe V. Toia, Robert Bujila, Zhye Yin, Scott Slavic, Timothy P. Szczykutowicz
Abstract
BACKGROUND. Variable beam hardening based on patient size causes variation in CT numbers for energy-integrating detector (EID) CT. Photon-counting detector (PCD) CT more accurately determines effective beam energy, potentially improving CT number reliability.
Topics & Concepts
Imaging phantomMedicineDetectorNuclear medicineEnergy (signal processing)Photon countingPhotonSiliconOpticsMedical physicsPhysicsOptoelectronicsQuantum mechanicsAdvanced X-ray and CT ImagingRadiation Dose and ImagingMedical Imaging Techniques and Applications