Cargando…
Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms
BACKGROUND: When using an anti‐scatter grid, a decrease in receptor dose caused by its X‐ray absorption seems to lead to the misperception that radiation dose needs to be increased even in digital radiography (DR). OBJECTIVE: To demonstrate that there is no need to increase radiation dose in DR with...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10476983/ https://www.ncbi.nlm.nih.gov/pubmed/37491809 http://dx.doi.org/10.1002/acm2.14081 |
_version_ | 1785101050096648192 |
---|---|
author | Kawashima, Hiroki Ichikawa, Katsuhiro Kitao, Azusa Matsubara, Takashi Sugiura, Takumi Kobayashi, Tomohiro Kobayashi, Satoshi |
author_facet | Kawashima, Hiroki Ichikawa, Katsuhiro Kitao, Azusa Matsubara, Takashi Sugiura, Takumi Kobayashi, Tomohiro Kobayashi, Satoshi |
author_sort | Kawashima, Hiroki |
collection | PubMed |
description | BACKGROUND: When using an anti‐scatter grid, a decrease in receptor dose caused by its X‐ray absorption seems to lead to the misperception that radiation dose needs to be increased even in digital radiography (DR). OBJECTIVE: To demonstrate that there is no need to increase radiation dose in DR with a grid, based on a visual evaluation using an adult and a pediatric abdomen phantom (P(AD) and P(PD), respectively). MATERIALS AND METHODS: Phantom images with and without a grid were obtained with exposure parameters determined based on a preliminarily measured signal‐to‐noise ratio improvement factor (SIF), an index for potential dose reduction when using a grid. In visual evaluation, four radiologists compared phantom images with a grid applied at different dose reduction rates (0% [no reduction], 18%, 36%, and 59% for P(AD) and 0% and 11% for P(PD)) against an image without a grid at the baseline dose (as the reference). They graded the overall image quality of the former relative to that of the latter (reference) on a 3‐point scale (3 = better, 2 = almost equal, 1 = worse). RESULTS: The mean scores for dose reduction rates of 0%, 18%, 36%, and 59% were 3.00, 3.00, 2.75, and 1.00, respectively, for P(AD); those for 0% and 11% were 2.13 and 1.63, respectively, for P(PD). These results support the validity of our view that no dose increase is necessary when using an anti‐scatter grid. Actually, there is even a potential for improvement in image quality with dose reduction rates of ≤36% for P(AD). CONCLUSION: It is worth reconsidering the necessity of increasing radiation dose in the DR imaging of the adult and pediatric abdomens with an anti‐scatter grid. |
format | Online Article Text |
id | pubmed-10476983 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-104769832023-09-05 Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms Kawashima, Hiroki Ichikawa, Katsuhiro Kitao, Azusa Matsubara, Takashi Sugiura, Takumi Kobayashi, Tomohiro Kobayashi, Satoshi J Appl Clin Med Phys Technical Notes BACKGROUND: When using an anti‐scatter grid, a decrease in receptor dose caused by its X‐ray absorption seems to lead to the misperception that radiation dose needs to be increased even in digital radiography (DR). OBJECTIVE: To demonstrate that there is no need to increase radiation dose in DR with a grid, based on a visual evaluation using an adult and a pediatric abdomen phantom (P(AD) and P(PD), respectively). MATERIALS AND METHODS: Phantom images with and without a grid were obtained with exposure parameters determined based on a preliminarily measured signal‐to‐noise ratio improvement factor (SIF), an index for potential dose reduction when using a grid. In visual evaluation, four radiologists compared phantom images with a grid applied at different dose reduction rates (0% [no reduction], 18%, 36%, and 59% for P(AD) and 0% and 11% for P(PD)) against an image without a grid at the baseline dose (as the reference). They graded the overall image quality of the former relative to that of the latter (reference) on a 3‐point scale (3 = better, 2 = almost equal, 1 = worse). RESULTS: The mean scores for dose reduction rates of 0%, 18%, 36%, and 59% were 3.00, 3.00, 2.75, and 1.00, respectively, for P(AD); those for 0% and 11% were 2.13 and 1.63, respectively, for P(PD). These results support the validity of our view that no dose increase is necessary when using an anti‐scatter grid. Actually, there is even a potential for improvement in image quality with dose reduction rates of ≤36% for P(AD). CONCLUSION: It is worth reconsidering the necessity of increasing radiation dose in the DR imaging of the adult and pediatric abdomens with an anti‐scatter grid. John Wiley and Sons Inc. 2023-07-25 /pmc/articles/PMC10476983/ /pubmed/37491809 http://dx.doi.org/10.1002/acm2.14081 Text en © 2023 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, LLC on behalf of The American Association of Physicists in Medicine. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Technical Notes Kawashima, Hiroki Ichikawa, Katsuhiro Kitao, Azusa Matsubara, Takashi Sugiura, Takumi Kobayashi, Tomohiro Kobayashi, Satoshi Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms |
title | Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms |
title_full | Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms |
title_fullStr | Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms |
title_full_unstemmed | Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms |
title_short | Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms |
title_sort | radiation dose considerations in digital radiography with an anti‐scatter grid: a study using adult and pediatric phantoms |
topic | Technical Notes |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10476983/ https://www.ncbi.nlm.nih.gov/pubmed/37491809 http://dx.doi.org/10.1002/acm2.14081 |
work_keys_str_mv | AT kawashimahiroki radiationdoseconsiderationsindigitalradiographywithanantiscattergridastudyusingadultandpediatricphantoms AT ichikawakatsuhiro radiationdoseconsiderationsindigitalradiographywithanantiscattergridastudyusingadultandpediatricphantoms AT kitaoazusa radiationdoseconsiderationsindigitalradiographywithanantiscattergridastudyusingadultandpediatricphantoms AT matsubaratakashi radiationdoseconsiderationsindigitalradiographywithanantiscattergridastudyusingadultandpediatricphantoms AT sugiuratakumi radiationdoseconsiderationsindigitalradiographywithanantiscattergridastudyusingadultandpediatricphantoms AT kobayashitomohiro radiationdoseconsiderationsindigitalradiographywithanantiscattergridastudyusingadultandpediatricphantoms AT kobayashisatoshi radiationdoseconsiderationsindigitalradiographywithanantiscattergridastudyusingadultandpediatricphantoms |