Collimators for medical imaging systems and image reconstruction methods thereof

Abstract

According to various embodiments, the present disclosure provides a collimator for medical imaging. The collimator includes a perforated plate with a top surface and a bottom surface and holes distributed on the perforated plate. The holes are arranged in a plurality of groups. The plurality of groups forms a first coded aperture pattern and the holes in each of the plurality of groups form a second coded aperture pattern.

Description

[0001] priority [0002] This application claims priority to U.S. Patent Application Serial No. 16 / 792,730, filed February 17, 2020, which claims the benefit of U.S. Provisional Patent Application Serial No. 62 / 807,106, filed February 18, 2019, which The entire disclosure content of is incorporated herein by their reference. Background technique [0003] In molecular medical imaging (sometimes called nuclear medicine), images representing the distribution of radiopharmaceuticals can be generated for use in medical diagnosis. Prior to imaging, a radiopharmaceutical is injected into an imaging subject, such as a patient. Radiopharmaceuticals emit radioactive photons that can travel through the body to be detected by photon detectors. Based on the information from the received photons, the photon detector can then determine the distribution of the radiopharmaceutical inside the patient. Their distribution is indicative of a patient's physiological function, and images of thei...

AI Technical Summary

Problems solved by technology

For example, existing imaging systems are often limited by background noise and non-uniform artifacts

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