US 11,684,322 B2
Positron emission tomography apparatus, method, and storage medium
Kanji Watanabe, Nasushiobara (JP)
Assigned to CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed by CANON MEDICAL SYSTEMS CORPORATION, Tochigi (JP)
Filed on Mar. 22, 2022, as Appl. No. 17/655,894.
Claims priority of application No. 2021-081528 (JP), filed on May 13, 2021.
Prior Publication US 2022/0361827 A1, Nov. 17, 2022
Int. Cl. A61B 6/03 (2006.01); G01T 1/29 (2006.01); A61B 6/00 (2006.01)
CPC A61B 6/037 (2013.01) [A61B 6/4275 (2013.01); A61B 6/585 (2013.01); A61B 6/586 (2013.01); G01T 1/2985 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A positron emission tomography apparatus comprising:
a plurality of Positron Emission Tomography (PET) detector entities arranged in a ring formation; and
processing circuitry configured
to obtain, with respect to each of the plurality of PET detector entities, state information indicating a state of the PET detector entity,
to detect an abnormality when an index value indicating a state of any individual or a whole of the plurality of PET detector entities exceeds a first threshold value on a basis of the state information, and
to detect a state in which the abnormality is not detected on the basis of the state information, but an index value indicating states of at least two of the plurality of PET detector entities is different from an index value indicating states of at least two other PET detector entities.