The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 1998
Filed:
Jun. 21, 1996
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A nuclear medicine diagnostic apparatus, particularly involving emission computed tomography, wherein absorption correction is performed by a gamma ray source including a plurality of line sources arrayed in a common plane. Each line source produces a radiation distribution having a peak and defining a half-width distance at which the radiation from the line source is attenuated by one-half. The plurality of line sources are arranged at a pitch equal to the half-width distance or an integral multiple of the half-width distance. In one embodiment, a serpentine line source is used having straight line portions and a plurality of bent portions, with the straight line portions arrayed parallel to each other at a pitch equal to the half-width distance or an integral multiple of the half-width distance.
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