Dynamic PET Image Reconstruction Using the Wavelet Kernel Method

Zahra Ashouri; Chad R. Hunter; Benjamin A. Spencer; Guobao Wang; Richard M. Dansereau; Robert A. Dekemp

doi:10.1109/NSS/MIC42101.2019.9059890

Dynamic PET Image Reconstruction Using the Wavelet Kernel Method

Zahra Ashouri, Chad R. Hunter, Benjamin A. Spencer, Guobao Wang, Richard M. Dansereau, Robert A. Dekemp

Radiology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Dynamic PET imaging is used to monitor the spatio-temporal distribution of a tracer in a tissue region. Dynamic PET can suffer from high noise; to address this problem, the kernel method has been developed for efficient dynamic PET image reconstruction. Previous kernel approaches used a Gaussian kernel to exploit nonlocal spatial correlations from image priors. The Gaussian kernel, has an undesired effect of smoothing high frequencies. In this work, we propose using a wavelet kernel with good energy compaction to further enhance kernel-based dynamic PET image reconstruction. The oscillation in the wavelet kernel can result in better representation of details in the final reconstructed images. We evaluated the wavelet kernel approach using patient data acquired from dynamic C-11 hydroxyephedrine (HED) PET imaging. Reconstruction results demonstrate that this wavelet kernel approach achieves better image quality than standard reconstruction and the Gaussian kernel approaches.

Original language	English (US)
Title of host publication	2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728141640
DOIs	https://doi.org/10.1109/NSS/MIC42101.2019.9059890
State	Published - Oct 2019
Event	2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019 - Manchester, United Kingdom Duration: Oct 26 2019 → Nov 2 2019

Publication series

Name	2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019

Conference

Conference	2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019
Country	United Kingdom
City	Manchester
Period	10/26/19 → 11/2/19

ASJC Scopus subject areas

Signal Processing
Radiology Nuclear Medicine and imaging
Nuclear and High Energy Physics

Access to Document

10.1109/NSS/MIC42101.2019.9059890

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Cite this

Ashouri, Z., Hunter, C. R., Spencer, B. A., Wang, G., Dansereau, R. M., & Dekemp, R. A. (2019). Dynamic PET Image Reconstruction Using the Wavelet Kernel Method. In 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019 [9059890] (2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSS/MIC42101.2019.9059890

Dynamic PET Image Reconstruction Using the Wavelet Kernel Method. / Ashouri, Zahra; Hunter, Chad R.; Spencer, Benjamin A.; Wang, Guobao; Dansereau, Richard M.; Dekemp, Robert A.

2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 9059890 (2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ashouri, Z, Hunter, CR, Spencer, BA, Wang, G, Dansereau, RM & Dekemp, RA 2019, Dynamic PET Image Reconstruction Using the Wavelet Kernel Method. in 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019., 9059890, 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019, Institute of Electrical and Electronics Engineers Inc., 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019, Manchester, United Kingdom, 10/26/19. https://doi.org/10.1109/NSS/MIC42101.2019.9059890

Ashouri Z, Hunter CR, Spencer BA, Wang G, Dansereau RM, Dekemp RA. Dynamic PET Image Reconstruction Using the Wavelet Kernel Method. In 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. 9059890. (2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019). https://doi.org/10.1109/NSS/MIC42101.2019.9059890

Ashouri, Zahra ; Hunter, Chad R. ; Spencer, Benjamin A. ; Wang, Guobao ; Dansereau, Richard M. ; Dekemp, Robert A. / Dynamic PET Image Reconstruction Using the Wavelet Kernel Method. 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. (2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019).

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