3D/4D Reconstruction and Quantitative Total Body Imaging

Jinyi Qi; Samuel Matej; Guobao Wang; Xuezhu Zhang

doi:10.1016/j.cpet.2020.09.008

3D/4D Reconstruction and Quantitative Total Body Imaging

PET Clin. 2021 Jan;16(1):41-54. doi: 10.1016/j.cpet.2020.09.008.

Authors

Jinyi Qi¹, Samuel Matej², Guobao Wang³, Xuezhu Zhang⁴

Affiliations

¹ Department of Biomedical Engineering, University of California, One Shields Avenue, Davis, CA 95616, USA. Electronic address: qi@ucdavis.edu.
² Department of Radiology, University of Pennsylvania, 3620 Hamilton Walk, John Morgan Building, Room 156A, Philadelphia, PA 19104-6061, USA.
³ Department of Radiology, University of California Davis Medical Center, Lawrence J. Ellison Ambulatory Care Center Building, Suite 3100, 4860 Y Street, Sacramento, CA 95817, USA.
⁴ Department of Biomedical Engineering, University of California, One Shields Avenue, Davis, CA 95616, USA.

Abstract

Total-body PET image reconstruction follows a similar procedure to the image reconstruction process for standard whole-body PET scanners. One unique aspect of total-body imaging is simultaneous coverage of the entire human body, which makes it convenient to perform total-body dynamic PET scans. Therefore, four-dimensional dynamic PET reconstruction and parametric imaging are of great interest in total-body imaging. This article covers some basics of PET image reconstruction and then focuses on three- and four-dimensional PET reconstruction for total-body imaging. Methods for image formation from raw measurements in total-body PET are described. Challenges and opportunities in total-body PET image reconstruction are discussed.

Keywords: Data corrections; Direct parametric reconstruction; Kernel reconstruction; Long axial FOV; PET reconstruction; Time of flight.

3D/4D Reconstruction and Quantitative Total Body Imaging

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