The application of list-mode in 18F-FDG PET/CT emission scan duration optimisation

FENG Hong-bo; ZHANG Yan-jun; ZHANG Shuo

Journal of China Clinic Medical Imaging ›› 2013, Vol. 24 ›› Issue (1) : 32-34.

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The application of list-mode in 18F-FDG PET/CT emission scan duration optimisation

FENG Hong-bo, ZHANG Yan-jun, ZHANG Shuo

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Abstract

Objective: Discussing the feasibility of optimizing the 18F-FDG PET/CT emission scan duration by using the list-mode acquisition. Method: Both the list-mode and sino 18F-FDG PET/CT examinations were performed on 22 patients with a weight-based injected activity(7.4 MBq/kg). PET images of different emission scan durations from 40 s to 180 s were obtained by the list-mode raw data reconstruction. SUVmax and SUVmean of the liver ROIs of different scan durations were analyzed by using SPSS 16. Result: SUVmax and SUVmean declined as the acquisition duration increased. No significant differences were found among the groups which emission scan durations were more than 80 s. Conclusion: Optimized scan duration improved the examination efficiency. The list-mode acquisition which could reflect the dynamic relationship of emission scan duration and image quality would be an effective method to determine the suitable scan duration.

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Positron-emission / tomography

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FENG Hong-bo;ZHANG Yan-jun;ZHANG Shuo. The application of list-mode in 18F-FDG PET/CT emission scan duration optimisation[J]. Journal of China Clinic Medical Imaging. 2013, 24(1): 32-34