Monitoring 3D dose distributions in proton therapy by reconstruction using an iterative method

Young Hak Kim; Changyeon Yoon; Wonho Lee

doi:10.1016/j.apradiso.2016.05.005

Monitoring 3D dose distributions in proton therapy by reconstruction using an iterative method

Young Hak Kim, Changyeon Yoon, Wonho Lee

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

Abstract

The Bragg peak of protons can be determined by measuring prompt γ-rays. In this study, prompt γ-rays detected by single-photon emission computed tomography with a geometrically optimized collimation system were reconstructed by an iterative method. The falloff position by iterative method (52.48 mm) was most similar to the Bragg peak (52 mm) of an 80 MeV proton compared with those of back-projection (54.11 mm) and filtered back-projection (54.91 mm) methods. Iterative method also showed better image performance than other methods.

Original language	English
Pages (from-to)	33-39
Number of pages	7
Journal	Applied Radiation and Isotopes
Volume	114
DOIs	https://doi.org/10.1016/j.apradiso.2016.05.005
Publication status	Published - 2016 Aug 1

Bibliographical note

Publisher Copyright:
© 2016 Elsevier Ltd.

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

Keywords

Bragg peak
Iterative reconstruction method
Prompt γ-Rays
Proton therapy
Single-Photon Emission Computed Tomography (SPECT)

ASJC Scopus subject areas

Radiation

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10.1016/j.apradiso.2016.05.005

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title = "Monitoring 3D dose distributions in proton therapy by reconstruction using an iterative method",

abstract = "The Bragg peak of protons can be determined by measuring prompt γ-rays. In this study, prompt γ-rays detected by single-photon emission computed tomography with a geometrically optimized collimation system were reconstructed by an iterative method. The falloff position by iterative method (52.48 mm) was most similar to the Bragg peak (52 mm) of an 80 MeV proton compared with those of back-projection (54.11 mm) and filtered back-projection (54.91 mm) methods. Iterative method also showed better image performance than other methods.",

keywords = "Bragg peak, Iterative reconstruction method, Prompt γ-Rays, Proton therapy, Single-Photon Emission Computed Tomography (SPECT)",

author = "Kim, {Young Hak} and Changyeon Yoon and Wonho Lee",

year = "2016",

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doi = "10.1016/j.apradiso.2016.05.005",

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T1 - Monitoring 3D dose distributions in proton therapy by reconstruction using an iterative method

AU - Kim, Young Hak

AU - Yoon, Changyeon

AU - Lee, Wonho

PY - 2016/8/1

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N2 - The Bragg peak of protons can be determined by measuring prompt γ-rays. In this study, prompt γ-rays detected by single-photon emission computed tomography with a geometrically optimized collimation system were reconstructed by an iterative method. The falloff position by iterative method (52.48 mm) was most similar to the Bragg peak (52 mm) of an 80 MeV proton compared with those of back-projection (54.11 mm) and filtered back-projection (54.91 mm) methods. Iterative method also showed better image performance than other methods.

AB - The Bragg peak of protons can be determined by measuring prompt γ-rays. In this study, prompt γ-rays detected by single-photon emission computed tomography with a geometrically optimized collimation system were reconstructed by an iterative method. The falloff position by iterative method (52.48 mm) was most similar to the Bragg peak (52 mm) of an 80 MeV proton compared with those of back-projection (54.11 mm) and filtered back-projection (54.91 mm) methods. Iterative method also showed better image performance than other methods.

KW - Bragg peak

KW - Iterative reconstruction method

KW - Prompt γ-Rays

KW - Proton therapy

KW - Single-Photon Emission Computed Tomography (SPECT)

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VL - 114

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JO - Applied Radiation and Isotopes

JF - Applied Radiation and Isotopes

ER -

Monitoring 3D dose distributions in proton therapy by reconstruction using an iterative method

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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