Region-Based Partial Volume Correction Techniques for PET Imaging : Sinogram Implementation and Robustness

Joint Authors

Kusano, Maggie
Caldwell, Curtis B.
Poon, Ian
Armstrong, Jennifer
Sattarivand, Mike
Szilagyi, Gregory M.

Source

International Journal of Molecular Imaging

Issue

Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2013-12-17

Country of Publication

Egypt

No. of Pages

12

Main Subjects

Medicine

Abstract EN

Background/Purpose.

Limited spatial resolution of positron emission tomography (PET) requires partial volume correction (PVC).

Region-based PVC methods are based on geometric transfer matrix implemented either in image-space (GTM) or sinogram-space (GTMo), both with similar performance.

Although GTMo is slower, it more closely simulates the 3D PET image acquisition, accounts for local variations of point spread function, and can be implemented for iterative reconstructions.

A recent image-based symmetric GTM (sGTM) has shown improvement in noise characteristics and robustness to misregistration over GTM.

This study implements the sGTM method in sinogram space (sGTMo), validates it, and evaluates its performance.

Methods.

Two 3D sphere and brain digital phantoms and a physical sphere phantom were used.

All four region-based PVC methods (GTM, GTMo, sGTM, and sGTMo) were implemented and their performance was evaluated.

Results.

All four PVC methods had similar accuracies.

Both noise propagation and robustness of the sGTMo method were similar to those of sGTM method while they were better than those of GTMo method especially for smaller objects.

Conclusion.

The sGTMo was implemented and validated.

The performance of the sGTMo in terms of noise characteristics and robustness to misregistration is similar to that of the sGTM method and improved compared to the GTMo method.

American Psychological Association (APA)

Sattarivand, Mike& Armstrong, Jennifer& Szilagyi, Gregory M.& Kusano, Maggie& Poon, Ian& Caldwell, Curtis B.. 2013. Region-Based Partial Volume Correction Techniques for PET Imaging : Sinogram Implementation and Robustness. International Journal of Molecular Imaging،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-472080

Modern Language Association (MLA)

Kusano, Maggie…[et al.]. Region-Based Partial Volume Correction Techniques for PET Imaging : Sinogram Implementation and Robustness. International Journal of Molecular Imaging No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-472080

American Medical Association (AMA)

Sattarivand, Mike& Armstrong, Jennifer& Szilagyi, Gregory M.& Kusano, Maggie& Poon, Ian& Caldwell, Curtis B.. Region-Based Partial Volume Correction Techniques for PET Imaging : Sinogram Implementation and Robustness. International Journal of Molecular Imaging. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-472080

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-472080