Continuous bed motion acquisition with axially short phantom for pet imaging system setup and quality control
Номер патента: EP4026103A1
Опубликовано: 13-07-2022
Автор(ы): Brian Kelly, Mehmet Aykac, Shikui Yan, Vladimir Panin
Принадлежит: Siemens Medical Solutions USA Inc
Опубликовано: 13-07-2022
Автор(ы): Brian Kelly, Mehmet Aykac, Shikui Yan, Vladimir Panin
Принадлежит: Siemens Medical Solutions USA Inc
Реферат: An improved method for time alignment (TA) procedure and crystal efficiency (CE) normalization estimation procedure for a PET scanner system is disclosed. In the TA procedure modeled time-of-flight (TOF) data are compared against the measured TOF data from an axially short cylinder phantom in order to find individual detector's time offsets (TOs). Then the TOs are estimated simultaneously by matching the TOF center of mass between the modeled and measured TOF data. In the CE estimation, TOF reconstruction of CBM data on the axially short cylinder phantom is performed. Alternating between TOF image reconstruction and CE updates eventually lead to the correct estimation of activity and CE component.
Continuous bed motion acquisition with axially short phantom for pet imaging system setup and quality control
Номер патента: US20240273783A1. Автор: Brian Kelly,Mehmet Aykac,Vladimir Panin,Shikui Yan. Владелец: Siemens Medical Solutions USA Inc. Дата публикации: 2024-08-15.