The invention discloses a method and a
system for
synchronizing single
event list data in
positron emission
tomography (PET). The method includes that at first, single
event list data of each independent working detecting module is obtained, probability density of an
occurrence time interval of a single event in each detecting module is calculated, and initial parameters are set; then iteration peak seeking and classification time window peak seeking are used for determining initial detecting
time difference values of all detecting modules; and finally the difference values are used for conducting synchronous correction and fitting screening on single
event data in each detecting module. The invention further discloses a
system for
synchronizing the single
event list data in the PET. The
system comprises a data obtaining and
frequency difference compensation module, an initial parameter setting module, a rough time scale fitting module, a fine time scale fitting module and a
data synchronization correction and fitting screening module. The method and the system for
synchronizing the single event
list data in the PET can finish synchronization of the single event
list data effectively and accurately, simultaneously complexity of
system hardware design is greatly simplified, and flexibility, expansibility and adaptability of the system are improved.