Fast iterative image reconstruction method for emission tomography

摘要

A fully analytical fast iterative statistical algorithm for image reconstruction from radiation measurements obtained in emission tomography e.g. in a Positron Emission Tomography scanner, is described in this invention. The method presented here improves the resolution of the reconstructed images and/or decreases the tracer dosage absorbed by a patient during examination and at the same time it maintains the quality of the functional images obtained. These improvements are due to the signals obtained being adapted to the specific statistics of this imaging technique.