SYSTEM AND METHOD TO IMPROVE IMAGE QUALITY OF EMISSION TOMOGRAPHY WHEN USING ADVANCED RADIONUCLIDES

摘要

A method and system for acquiring a series of medical images includes a plurality of detectors configured to be arranged to acquire gamma rays emitted from a subject as a result of an advanced radionuclide administered to the subject and communicate signals corresponding to acquired gamma rays. A data processing system is configured to receive the signals from the plurality of detectors, determine double coincidence event dataset and a multiple coincidence event dataset, separate the multiple coincidence event dataset into at least one of a standard lines of response dataset and a nonstandard lines of response dataset, and apply a background correction to the double coincidence event dataset based on the non-standard lines of response dataset and/or the standard lines of response dataset to obtain a standard coincidence dataset.

主权项

1. An emission tomography system for acquiring a series of medical images of a subject after administration of a radionuclide to the subject, wherein the radionuclide decays emitting positrons and at least one prompt gamma ray, the system comprising:
a plurality of detectors configured to be arranged about the subject to acquire gamma rays emitted from the subject as a result of the radionuclide administered to the subject and communicate signals corresponding to acquired gamma rays; a data processing system configured to
receive the signals from the plurality of detectors,determine, from the signals from the plurality of detectors, a double coincidence event dataset and a multiple coincidence event dataset,separate the multiple coincidence event dataset into a standard lines of response dataset and a non-standard lines of response dataset,apply a correction to the double coincidence event dataset based on at least one of the non-standard lines of response dataset and the standard lines of response dataset to obtain a standard coincidence dataset; and a reconstruction system configured to receive the standard coincidence dataset and reconstruct therefrom a series of medical images of the subject.