SYSTEM AND METHOD FOR CONTROLLING NOISE IN MULTI-ENERGY COMPUTED TOMOGRAPHY IMAGES BASED ON SPATIO-SPECTRAL INFORMATION

摘要

System and methods are provided for producing computed tomography (CT) images. In some aspects, a method includes obtaining medical image data sets acquired using the multiple energies of irradiating radiation and analyzing the medical image data sets for spatial and spectral features. The method also includes comparing the spatial and spectral features of the medical image data sets to identify similarities and using the similarities, weighting the medical image data sets to generate images of the subject having reduced noise compared to images of the subject produced from the medical image data sets without weighting.