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Effect of technologist and patient attributes on centering for body CT examinations: Influence of cultural and ethnic factors

There are no published data on the effect of patient and technologist gender and ethnicity attributes on off-centering in CT. Therefore, we assessed the impact of patient and technologist variations on off-centering patients undergoing body CT. With institutional review board approval, our retrospec...

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Autores principales: Aly, Antar, Ebrahimian, Shadi, Kharita, Mohammed H., Heidous, Mahmoud, Ashruf, Mohammad Zaya, Kumar, Davendra, Kalra, Mannudeep K., Al Naemi, Huda Mohd
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9390905/
https://www.ncbi.nlm.nih.gov/pubmed/35984837
http://dx.doi.org/10.1371/journal.pone.0273227
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author Aly, Antar
Ebrahimian, Shadi
Kharita, Mohammed H.
Heidous, Mahmoud
Ashruf, Mohammad Zaya
Kumar, Davendra
Kalra, Mannudeep K.
Al Naemi, Huda Mohd
author_facet Aly, Antar
Ebrahimian, Shadi
Kharita, Mohammed H.
Heidous, Mahmoud
Ashruf, Mohammad Zaya
Kumar, Davendra
Kalra, Mannudeep K.
Al Naemi, Huda Mohd
author_sort Aly, Antar
collection PubMed
description There are no published data on the effect of patient and technologist gender and ethnicity attributes on off-centering in CT. Therefore, we assessed the impact of patient and technologist variations on off-centering patients undergoing body CT. With institutional review board approval, our retrospective study included 1000 consecutive adult patients (age ranged 22–96 years; 756 males: 244 females) who underwent chest or abdomen CT examinations. We recorded patient (age, gender, nationality, body weight, height,), technologist gender, and scan-related (scanner vendor, body region imaged, scan length, CT dose index volume, dose length product) information. Lateral and anteroposterior (AP) diameters were recorded to calculate effective diameter and size-specific dose estimate (SSDE). Off-centering represented the distance between the anterior-posterior centers of the scan field of view and the patient at the level of carina (for chest CT) and iliac crest (for abdomen CT). About 76% of the patients (760/1000) were off-centered with greater off-centering for chest (22 mm) than for abdomen (15 mm). Although ethnicity or patient gender was not a significant determinant of off-centering, technologist-patient gender mismatch was associated with a significantly greater frequency of off-centering (p<0.001). Off-centering below the gantry isocenter was twice as common as off-centering above the gantry isocenter (p<0.001). The latter occurred more frequently in larger patients and was associated with higher radiation doses than those centered below the isocenter (p<0.001). Technologists’ years of experience and patient factors profoundly affect the presence and extent of off-centering for both chest and abdomen CTs. Larger patients are more often off-centered than smaller patients.
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spelling pubmed-93909052022-08-20 Effect of technologist and patient attributes on centering for body CT examinations: Influence of cultural and ethnic factors Aly, Antar Ebrahimian, Shadi Kharita, Mohammed H. Heidous, Mahmoud Ashruf, Mohammad Zaya Kumar, Davendra Kalra, Mannudeep K. Al Naemi, Huda Mohd PLoS One Research Article There are no published data on the effect of patient and technologist gender and ethnicity attributes on off-centering in CT. Therefore, we assessed the impact of patient and technologist variations on off-centering patients undergoing body CT. With institutional review board approval, our retrospective study included 1000 consecutive adult patients (age ranged 22–96 years; 756 males: 244 females) who underwent chest or abdomen CT examinations. We recorded patient (age, gender, nationality, body weight, height,), technologist gender, and scan-related (scanner vendor, body region imaged, scan length, CT dose index volume, dose length product) information. Lateral and anteroposterior (AP) diameters were recorded to calculate effective diameter and size-specific dose estimate (SSDE). Off-centering represented the distance between the anterior-posterior centers of the scan field of view and the patient at the level of carina (for chest CT) and iliac crest (for abdomen CT). About 76% of the patients (760/1000) were off-centered with greater off-centering for chest (22 mm) than for abdomen (15 mm). Although ethnicity or patient gender was not a significant determinant of off-centering, technologist-patient gender mismatch was associated with a significantly greater frequency of off-centering (p<0.001). Off-centering below the gantry isocenter was twice as common as off-centering above the gantry isocenter (p<0.001). The latter occurred more frequently in larger patients and was associated with higher radiation doses than those centered below the isocenter (p<0.001). Technologists’ years of experience and patient factors profoundly affect the presence and extent of off-centering for both chest and abdomen CTs. Larger patients are more often off-centered than smaller patients. Public Library of Science 2022-08-19 /pmc/articles/PMC9390905/ /pubmed/35984837 http://dx.doi.org/10.1371/journal.pone.0273227 Text en © 2022 Aly et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Aly, Antar
Ebrahimian, Shadi
Kharita, Mohammed H.
Heidous, Mahmoud
Ashruf, Mohammad Zaya
Kumar, Davendra
Kalra, Mannudeep K.
Al Naemi, Huda Mohd
Effect of technologist and patient attributes on centering for body CT examinations: Influence of cultural and ethnic factors
title Effect of technologist and patient attributes on centering for body CT examinations: Influence of cultural and ethnic factors
title_full Effect of technologist and patient attributes on centering for body CT examinations: Influence of cultural and ethnic factors
title_fullStr Effect of technologist and patient attributes on centering for body CT examinations: Influence of cultural and ethnic factors
title_full_unstemmed Effect of technologist and patient attributes on centering for body CT examinations: Influence of cultural and ethnic factors
title_short Effect of technologist and patient attributes on centering for body CT examinations: Influence of cultural and ethnic factors
title_sort effect of technologist and patient attributes on centering for body ct examinations: influence of cultural and ethnic factors
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9390905/
https://www.ncbi.nlm.nih.gov/pubmed/35984837
http://dx.doi.org/10.1371/journal.pone.0273227
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