A Fast Local Gating Method for TOF-PET

The conventional gating approach creates a dilemma for systems with large field-of-view (FOV) such as the uExplorer system. The motion effect is localized with variable motion amplitude across the whole FOV. A conventional gating approach would increase the noise for regions without motion, or with small motion amplitude. Existing local gating approach that allows optimized locally adaptive gating numbers requires a 4D reconstruction, which is...