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:
May. 17, 2016
Filed:
Mar. 28, 2013
National Institute of Radiological Sciences, Chiba-shi, Chiba, JP;
Shimadzu Corporation, Kyoto-shi, Kyoto, JP;
Taiga Yamaya, Chiba, JP;
Takayuki Obata, Chiba, JP;
Mikio Suga, Ichujawa, JP;
Hiroshi Kawaguchi, Funabashi, JP;
Yoshiyuki Yamakawa, Uji, JP;
NATIONAL INSTITUTE OF RADIOLOGICAL SERVICES, Chiba-shi, JP;
SHIMADZU CORPORATION, Kyoto-shi, JP;
Abstract
When an image for PET attenuation correction is generated from an MR image, the MR image captured by MRI is segmented into regions according to pixel values. In a region in which a radiation attenuation coefficient is considered to be uniform, a radiation attenuation correction value is determined by referring to an existing radiation attenuation correction value table. In a region including multiple tissues having different radiation attenuation coefficients, a radiation attenuation correction value is determined by referring to a standard image. In such a manner, an image for PET attenuation correction in which tissues having similar pixel values in the MR image but different attenuation coefficients for radiation can be distinguished and that can accommodate individual differences and an affected area such as a space occupying lesion (for example, a cancer, abscess, or the like) and an organic defect is generated.