Impact of image formation factors on material discrimination in spectral CT.

ABSTRACT: Objective.The accuracy of material decomposition in spectral computed tomography (CT) depends on the information quality captured in image acquisition, a factor that cannot be adequately assessed using conventional image quality metrologies due to the multi-energy nature of spectral CT. This work used metrologies specific to spectral CT to evaluate the impact of acquisition conditions on the quality of spectral CT images and accuracy of material decomposition techniques.Approach.Computational phantoms were created with cylindrical shapes and variable sizes (20-40 cm), containing inserts of iodine and gadolinium (1-8 mg ml^-1). The phantoms were imaged using a validated CT simulator modeling a clinical photon-counting CT scanner. The acquisitions were done at differe

SUBMITTER: Rajagopal J 

PROVIDER: S-EPMC11736991 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature