(19)
(11) EP 4 193 195 A1

(12)

(43) Date of publication:
14.06.2023 Bulletin 2023/24

(21) Application number: 21759216.1

(22) Date of filing: 09.08.2021
(51) International Patent Classification (IPC): 
G01T 1/29(2006.01)
A61B 5/00(2006.01)
(52) Cooperative Patent Classification (CPC):
G01T 1/2985; A61B 5/7267; A61B 5/055; G01R 33/481
(86) International application number:
PCT/US2021/071139
(87) International publication number:
WO 2022/056508 (17.03.2022 Gazette 2022/11)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 09.09.2020 WO PCT/US2020/070506
21.12.2020 US 202063199332 P

(71) Applicant: Siemens Medical Solutions USA, Inc.
Malvern, PA 19355 (US)

(72) Inventors:
  • BHARKHADA, Deepak
    Knoxville, Tennessee 37923 (US)
  • PANIN, Vladimir
    Knoxville, Tennessee 37922 (US)
  • TEIMOORISICHANI, Mohammadreza
    Knoxville, Tennessee 37922 (US)
  • CONTI, Maurizio
    Knoxville, Tennessee 37919 (US)
  • SARI, Hasan
    3012 Bern (CH)

(74) Representative: Horn Kleimann Waitzhofer Patentanwälte PartG mbB 
Ganghoferstraße 29a
80339 München
80339 München (DE)

   


(54) SYSTEM AND METHOD TO ESTIMATE ATTENUATION CORRECTION FOR REPEATED SCANS AND LOW DOSE SCANS IN LONG AXIAL FOV PET SCANNERS