Monte Carlo-based scatter correction for the SMARTZOOM collimator (2024)

Dietze, M. M. A., Kunnen, B., Stella, M. (2020). Monte Carlo-based scatter correction for the SMARTZOOM collimator. EJNMMI physics, 7(1), Article 49. https://doi.org/10.1186/s40658-020-00318-7

Dietze, Martijn M A ; Kunnen, Britt ; Stella, Martina et al. / Monte Carlo-based scatter correction for the SMARTZOOM collimator. In: EJNMMI physics. 2020 ; Vol. 7, No. 1.

@article{1cd229b0b8bf4296be1a996d65aa8dc8,

title = "Monte Carlo-based scatter correction for the SMARTZOOM collimator",

abstract = "BACKGROUND: Myocardial perfusion imaging is a commonly performed SPECT protocol and hence it would be beneficial if its scan duration could be shortened. For traditional gamma cameras, two developments have separately shown to allow for a shortened scan duration: (i) reconstructing with Monte Carlo-based scatter correction instead of dual-energy window scatter correction and (ii) acquiring projections with the SMARTZOOM collimator instead of a parallel-hole collimator. This study investigates which reduction in scan duration can be achieved when both methods are combined in a single system.RESULTS: The SMARTZOOM collimator was implemented in a Monte Carlo-based reconstruction package and the implementation was validated through image quality phantom experiments. The potential for scan duration reduction was evaluated with a phantom configuration that is realistic for myocardial perfusion imaging. The original reconstruction quality was achieved in 76 ± 8% of the original scan duration when switching from dual-energy window scatter correction to Monte Carlo-based scatter correction. The original reconstruction quality was achieved in 56 ± 13% of the original scan duration when switching from the parallel-hole to the SMARTZOOM collimator. After combining both methods in a single system, the original reconstruction quality was achieved in 34 ± 7% of the original scan duration.CONCLUSIONS: Monte Carlo-based scatter correction combined with the SMARTZOOM collimator can further decrease the scan duration in myocardial perfusion imaging.",

keywords = "Monte Carlo, SPECT, Reconstruction, Scatter, Correction, Myocardial, Perfusion",

author = "Dietze, {Martijn M A} and Britt Kunnen and Martina Stella and {de Jong}, {Hugo W A M}",

year = "2020",

month = jul,

day = "22",

doi = "10.1186/s40658-020-00318-7",

language = "English",

volume = "7",

journal = "EJNMMI physics",

issn = "2197-7364",

publisher = "Springer International Publishing AG",

number = "1",

}

Dietze, MMA, Kunnen, B, Stella, M 2020, 'Monte Carlo-based scatter correction for the SMARTZOOM collimator', EJNMMI physics, vol. 7, no. 1, 49. https://doi.org/10.1186/s40658-020-00318-7

Monte Carlo-based scatter correction for the SMARTZOOM collimator. / Dietze, Martijn M A; Kunnen, Britt; Stella, Martina et al.
In: EJNMMI physics, Vol. 7, No. 1, 49, 22.07.2020.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Monte Carlo-based scatter correction for the SMARTZOOM collimator

AU - Dietze, Martijn M A

AU - Kunnen, Britt

AU - Stella, Martina

AU - de Jong, Hugo W A M

PY - 2020/7/22

Y1 - 2020/7/22

N2 - BACKGROUND: Myocardial perfusion imaging is a commonly performed SPECT protocol and hence it would be beneficial if its scan duration could be shortened. For traditional gamma cameras, two developments have separately shown to allow for a shortened scan duration: (i) reconstructing with Monte Carlo-based scatter correction instead of dual-energy window scatter correction and (ii) acquiring projections with the SMARTZOOM collimator instead of a parallel-hole collimator. This study investigates which reduction in scan duration can be achieved when both methods are combined in a single system.RESULTS: The SMARTZOOM collimator was implemented in a Monte Carlo-based reconstruction package and the implementation was validated through image quality phantom experiments. The potential for scan duration reduction was evaluated with a phantom configuration that is realistic for myocardial perfusion imaging. The original reconstruction quality was achieved in 76 ± 8% of the original scan duration when switching from dual-energy window scatter correction to Monte Carlo-based scatter correction. The original reconstruction quality was achieved in 56 ± 13% of the original scan duration when switching from the parallel-hole to the SMARTZOOM collimator. After combining both methods in a single system, the original reconstruction quality was achieved in 34 ± 7% of the original scan duration.CONCLUSIONS: Monte Carlo-based scatter correction combined with the SMARTZOOM collimator can further decrease the scan duration in myocardial perfusion imaging.

AB - BACKGROUND: Myocardial perfusion imaging is a commonly performed SPECT protocol and hence it would be beneficial if its scan duration could be shortened. For traditional gamma cameras, two developments have separately shown to allow for a shortened scan duration: (i) reconstructing with Monte Carlo-based scatter correction instead of dual-energy window scatter correction and (ii) acquiring projections with the SMARTZOOM collimator instead of a parallel-hole collimator. This study investigates which reduction in scan duration can be achieved when both methods are combined in a single system.RESULTS: The SMARTZOOM collimator was implemented in a Monte Carlo-based reconstruction package and the implementation was validated through image quality phantom experiments. The potential for scan duration reduction was evaluated with a phantom configuration that is realistic for myocardial perfusion imaging. The original reconstruction quality was achieved in 76 ± 8% of the original scan duration when switching from dual-energy window scatter correction to Monte Carlo-based scatter correction. The original reconstruction quality was achieved in 56 ± 13% of the original scan duration when switching from the parallel-hole to the SMARTZOOM collimator. After combining both methods in a single system, the original reconstruction quality was achieved in 34 ± 7% of the original scan duration.CONCLUSIONS: Monte Carlo-based scatter correction combined with the SMARTZOOM collimator can further decrease the scan duration in myocardial perfusion imaging.

KW - Monte Carlo

KW - SPECT

KW - Reconstruction

KW - Scatter

KW - Correction

KW - Myocardial

KW - Perfusion

U2 - 10.1186/s40658-020-00318-7

DO - 10.1186/s40658-020-00318-7

M3 - Article

C2 - 32700063

SN - 2197-7364

VL - 7

JO - EJNMMI physics

JF - EJNMMI physics

IS - 1

M1 - 49

ER -

Dietze MMA, Kunnen B, Stella M, de Jong HWAM. Monte Carlo-based scatter correction for the SMARTZOOM collimator. EJNMMI physics. 2020 Jul 22;7(1):49. doi: 10.1186/s40658-020-00318-7