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3D/4D Reconstruction and Quantitative Total Body Imaging.

Jinyi Qi1, Samuel Matej2, Guobao Wang3

  • 1Department of Biomedical Engineering, University of California, One Shields Avenue, Davis, CA 95616, USA.

PET Clinics
|November 21, 2020
PubMed
Summary
This summary is machine-generated.

Total-body positron emission tomography (PET) image reconstruction enables simultaneous full-body scans, advancing dynamic PET imaging. This work explores 3D and 4D reconstruction methods, discussing challenges and opportunities for total-body PET.

Keywords:
Data correctionsDirect parametric reconstructionKernel reconstructionLong axial FOVPET reconstructionTime of flight

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Area of Science:

  • Medical Imaging
  • Nuclear Medicine
  • Image Reconstruction

Background:

  • Standard whole-body PET scanners have limitations in simultaneous coverage.
  • Total-body PET scanners offer simultaneous coverage of the entire human body.
  • This facilitates total-body dynamic PET scans, enhancing imaging capabilities.

Purpose of the Study:

  • To provide an overview of PET image reconstruction basics.
  • To focus on three- and four-dimensional (4D) PET reconstruction for total-body imaging.
  • To discuss methods, challenges, and opportunities in total-body PET image reconstruction.

Main Methods:

  • Describes image formation from raw measurements in total-body PET.
  • Covers fundamental principles of PET image reconstruction.
  • Focuses on advanced 3D and 4D reconstruction techniques.

Main Results:

  • Total-body PET reconstruction shares similarities with standard scanners but enables unique dynamic imaging protocols.
  • Four-dimensional dynamic PET reconstruction and parametric imaging are key areas of interest.
  • Methods for image formation and reconstruction are detailed, highlighting specific considerations for total-body scanners.

Conclusions:

  • Total-body PET imaging presents new possibilities for dynamic scanning and parametric imaging.
  • Further research into 3D and 4D reconstruction is crucial for optimizing total-body PET.
  • Addressing the challenges and leveraging opportunities will advance the field of total-body PET imaging.