DEVELOPMENT AND EVALUATION OF IMAGE RECONSTRUCTION ALGORITHMS FOR A NOVEL DESKTOP SPECT SYSTEM

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

ZERAATKAR NAVID; RAHMIM ARMAN; SARKAR SAEED; AY MOHAMMAD REZA

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Asia Oceania Journal of Nuclear Medicine & Biology Year:2017 | Volume:5 | Issue:2 Page(s): 120-133

Download Full-Text

View:

243

Download:

138

Cites:

Information Journal Paper

Title

DEVELOPMENT AND EVALUATION OF IMAGE RECONSTRUCTION ALGORITHMS FOR A NOVEL DESKTOP SPECT SYSTEM

Author(s)

ZERAATKAR NAVID | RAHMIM ARMAN | SARKAR SAEED | AY MOHAMMAD REZA | Issue Writer Certificate

Keywords

ART

IMAGE RECONSTRUCTION

MLEM

OSEM

PERSPECT

Abstract

Objective(s): Various iterative reconstruction algorithms in nuclear medicine have been introduced in the last three decades. For each new imaging system, it is wise to select appropriate IMAGE RECONSTRUCTION algorithms and evaluate their performance. In this study, three approaches of IMAGE RECONSTRUCTION were developed for a novel desktop open-gantry SPECT system, PERSPECT, to assess their performance in terms of the quality of the resultant reconstructed images.Methods: In the present work, a proposed IMAGE RECONSTRUCTION algorithm for the PERSPECT, referred to as quasi-simultaneous multiplicative algebraic reconstruction technique (qSMART), together with two popular IMAGE RECONSTRUCTION methods, maximum-likelihood expectation-maximization (MLEM) and ordered-subsets EM (OSEM), were implemented and compared. Analytic and Monte Carlo simulations were applied for data acquisition of various phantoms including a micro-Derenzo phantom. All acquired data were reconstructed by the three algorithms using different number of iterations (1-40). A thorough set of figures-of-merit was utilized to quantitatively compare the generated images.Results: OSEM depicted reconstructed images of higher (or matching) quality in comparison to qSMART. MLEM also reached nearly similar quality as OSEM but at higher number of iterations. The graph of data discrepancy revealed that the ranking of the three approaches in terms of convergence speed is as qSMART, OSEM, and MLEM. Furthermore, bias-versus-noise curves indicated that optimal bias-noise results were achieved using OSEM.Conclusion: The results showed that although qSMART can be applied for IMAGE RECONSTRUCTION if being halted in the early iterations (up to 5), the best achievable quality of images is obtained using the OSEM.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

APA: Copy

ZERAATKAR, NAVID, RAHMIM, ARMAN, SARKAR, SAEED, & AY, MOHAMMAD REZA. (2017). DEVELOPMENT AND EVALUATION OF IMAGE RECONSTRUCTION ALGORITHMS FOR A NOVEL DESKTOP SPECT SYSTEM. ASIA OCEANIA JOURNAL OF NUCLEAR MEDICINE AND BIOLOGY, 5(2), 120-133. SID. https://sid.ir/paper/342144/en

Vancouver: Copy

ZERAATKAR NAVID, RAHMIM ARMAN, SARKAR SAEED, AY MOHAMMAD REZA. DEVELOPMENT AND EVALUATION OF IMAGE RECONSTRUCTION ALGORITHMS FOR A NOVEL DESKTOP SPECT SYSTEM. ASIA OCEANIA JOURNAL OF NUCLEAR MEDICINE AND BIOLOGY[Internet]. 2017;5(2):120-133. Available from: https://sid.ir/paper/342144/en

IEEE: Copy

NAVID ZERAATKAR, ARMAN RAHMIM, SAEED SARKAR, and MOHAMMAD REZA AY, “DEVELOPMENT AND EVALUATION OF IMAGE RECONSTRUCTION ALGORITHMS FOR A NOVEL DESKTOP SPECT SYSTEM,” ASIA OCEANIA JOURNAL OF NUCLEAR MEDICINE AND BIOLOGY, vol. 5, no. 2, pp. 120–133, 2017, [Online]. Available: https://sid.ir/paper/342144/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops