Siemens Medical Solutions Usa, Inc.

Shikui Yan

Vladimir Y Panin

Mehmet Aykac

Brian Kelly

Ziad Burbar

Shaun S Gleason

Sam Griffin

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

A device for imaging system warp correction includes an object including an imaging phantom, the object being configured for placement of the imaging phantom adjacent a scanning interface of a detector, and a mounting cap coupled to the object and configured to be secured to the detector to establish the placement of the imaging phantom adjacent the scanning interface of the detector. The mounting cap includes a plurality of alignment features configured to align the object and the mounting cap.

Imaging system warp correction with phantom assembly

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Knoxville, TN, United States of America

Shikui Yan