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Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection
BACKGROUND: Evaluation of automated attenuation-based tube potential selection and its impact on image quality and radiation dose in CT (computed tomography) examinations for cancer staging. METHODS: A total of 110 (59 men, 51 women) patients underwent chest-abdomen-pelvis CT examinations; 55 using...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4331833/ https://www.ncbi.nlm.nih.gov/pubmed/25609222 http://dx.doi.org/10.1186/s40644-014-0028-7 |
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author | Beeres, Martin Römer, Marcus Bodelle, Boris Lee, Clara Gruber-Rouh, Tatjana Mbalisike, Emmanuel Kerl, Josef M Wichmann, Julian L Schulz, Boris Vogl, Thomas J Bauer, Ralf W |
author_facet | Beeres, Martin Römer, Marcus Bodelle, Boris Lee, Clara Gruber-Rouh, Tatjana Mbalisike, Emmanuel Kerl, Josef M Wichmann, Julian L Schulz, Boris Vogl, Thomas J Bauer, Ralf W |
author_sort | Beeres, Martin |
collection | PubMed |
description | BACKGROUND: Evaluation of automated attenuation-based tube potential selection and its impact on image quality and radiation dose in CT (computed tomography) examinations for cancer staging. METHODS: A total of 110 (59 men, 51 women) patients underwent chest-abdomen-pelvis CT examinations; 55 using a fixed tube potential of 120 kV/current of 210 Reference mAs (using CareDose4D), and 55 using automated attenuation-based tube potential selection (CAREkV) also using a current of 210 Reference mAs. This evaluation was performed as a single-centre, observer-blinded retrospective analysis. Image quality was assessed by two readers in consensus. Attenuation, image noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) were measured or calculated for objective image evaluation. For the evaluation of radiation exposure, dose-length-product (DLP) values were compared and Size-specific dose estimates (SSDE) values were calculated. RESULTS: Diagnostic image quality was obtained from all patients. The median DLP (703.5 mGy · cm, range 390–2203 mGy · cm) was 7.9% lower when using the algorithm compared with the standard 120 kV protocol (median 756 mGy · cm, range 345–2267 mGy · cm). A reduction in potential to 100 kV occurred in 32 cases; therefore, these patients received significantly lower radiation exposure compared with the 120 kV protocol. CONCLUSION: Automated attenuation-based tube potential selection produces good diagnostic image quality in chest-abdomen-pelvis CT and reduces the patient’s overall radiation dose by 7.9% compared to the standard 120 kV protocol. |
format | Online Article Text |
id | pubmed-4331833 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-43318332015-02-19 Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection Beeres, Martin Römer, Marcus Bodelle, Boris Lee, Clara Gruber-Rouh, Tatjana Mbalisike, Emmanuel Kerl, Josef M Wichmann, Julian L Schulz, Boris Vogl, Thomas J Bauer, Ralf W Cancer Imaging Research Article BACKGROUND: Evaluation of automated attenuation-based tube potential selection and its impact on image quality and radiation dose in CT (computed tomography) examinations for cancer staging. METHODS: A total of 110 (59 men, 51 women) patients underwent chest-abdomen-pelvis CT examinations; 55 using a fixed tube potential of 120 kV/current of 210 Reference mAs (using CareDose4D), and 55 using automated attenuation-based tube potential selection (CAREkV) also using a current of 210 Reference mAs. This evaluation was performed as a single-centre, observer-blinded retrospective analysis. Image quality was assessed by two readers in consensus. Attenuation, image noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) were measured or calculated for objective image evaluation. For the evaluation of radiation exposure, dose-length-product (DLP) values were compared and Size-specific dose estimates (SSDE) values were calculated. RESULTS: Diagnostic image quality was obtained from all patients. The median DLP (703.5 mGy · cm, range 390–2203 mGy · cm) was 7.9% lower when using the algorithm compared with the standard 120 kV protocol (median 756 mGy · cm, range 345–2267 mGy · cm). A reduction in potential to 100 kV occurred in 32 cases; therefore, these patients received significantly lower radiation exposure compared with the 120 kV protocol. CONCLUSION: Automated attenuation-based tube potential selection produces good diagnostic image quality in chest-abdomen-pelvis CT and reduces the patient’s overall radiation dose by 7.9% compared to the standard 120 kV protocol. BioMed Central 2014-09-02 /pmc/articles/PMC4331833/ /pubmed/25609222 http://dx.doi.org/10.1186/s40644-014-0028-7 Text en Copyright © 2014 Beeres et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Beeres, Martin Römer, Marcus Bodelle, Boris Lee, Clara Gruber-Rouh, Tatjana Mbalisike, Emmanuel Kerl, Josef M Wichmann, Julian L Schulz, Boris Vogl, Thomas J Bauer, Ralf W Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection |
title | Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection |
title_full | Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection |
title_fullStr | Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection |
title_full_unstemmed | Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection |
title_short | Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection |
title_sort | chest-abdomen-pelvis ct for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4331833/ https://www.ncbi.nlm.nih.gov/pubmed/25609222 http://dx.doi.org/10.1186/s40644-014-0028-7 |
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