Patent Number: 6,294,788

Title: Randoms correction in positron imaging

Abstract: In positron emission imaging, coincident gamma ray pairs are acquired and processed to generate an image. Random gamma ray pairs in the acquired coincidence data degrade the quality of the resultant image. The coincident gamma ray pairs are re-paired to generate non-coincident gamma ray pairs. The non-coincident pairs are used to correct for randoms in the acquired coincidence data. Alternately, singles gamma rays may be detected and paired with non-coincident single gamma rays to generate non-coincident pairs. These pairs may be used to correct for randoms in the acquired coincidence data.

Inventors: Cooke; Steven E. (Garfield Heights, OH), Matthews; Christopher G. (Lyndhurst, OH), Vesel; John F. (Christina Dr., OH)

Assignee: Marconi Medical Systems, Inc.

International Classification: G01T 1/00 (20060101); G01T 1/172 (20060101); G01T 1/29 (20060101); G01T 001/172 ()

Expiration Date: 09/25/2018