Evaluation of a prototype dual-energy computed tomographic apparatus. I. Phantom studies.
We report the evaluation of a prototype dual-energy implementation using rapid kVp switching on a clinical computed tomographic scanner. The method employs prereconstruction basis material decomposition of the dual-energy projection data. Each dual-energy scan can be processed into conventional single-kVp images, basis material density images, and monoenergetic images. Phantom studies were carried out to qualitatively and quantitatively evaluate and validate the approach.
D001699:Biometry; D005069:Evaluation Studies as Topic; D006283:Health Physics; D006801:Humans; D008953:Models, Anatomic; D009038:Motion; D011856:Radiographic Image Enhancement / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*