TY - JOUR
T1 - Establishment of diagnostic reference levels in computed tomography in two large hospitals in Oman
AU - Bouchareb, Yassine
AU - Al-Maimani, Amal
AU - Al-Balushi, Al Yaqin
AU - Al-Kalbani, Maather
AU - Al-Maskari, Hasina
AU - Al-Dhuhli, Humoud
AU - Al-Kindi, Faiza
N1 - © The Author(s) 2023. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
PY - 2023/10/1
Y1 - 2023/10/1
N2 - This study aimed to estimate diagnostic reference levels (DRLs) for the most frequent computed tomography (CT) imaging examinations to monitor and better control radiation doses delivered to patients. Seven CT imaging examinations: Head, Chest, Chest High Resolution (CHR), Abdomen Pelvis (AP), Chest Abdomen Pelvis (CAP), Kidneys Ureters Bladder (KUB) and Cardiac, were considered. CT dosimetric quantities and patient demographics were collected from data storage systems. Local typical values for DRLs were calculated for CTDIvol (mGy), dose length product (DLP) (mGy·cm) and effective doses (mSv) were estimated for each examination. The calculated DRLs were given as (median CTDIvol (mGy):median DLP (mGy·cm)): Head: 39:657; Chest: 13:451; CHR: 6:228; AP: 12:578; CAP: 20:807; KUB: 7:315, and Cardiac: 2:31. Estimated effective doses for Head, Chest, CHR, AP, CAP, KUB and Cardiac were 1.3, 12.7, 6.3, 12.5, 18.1, 5.8 and 0.8 mSv, respectively. The estimated DRLs will act as guidance doses to prevent systematic excess of patient doses.
AB - This study aimed to estimate diagnostic reference levels (DRLs) for the most frequent computed tomography (CT) imaging examinations to monitor and better control radiation doses delivered to patients. Seven CT imaging examinations: Head, Chest, Chest High Resolution (CHR), Abdomen Pelvis (AP), Chest Abdomen Pelvis (CAP), Kidneys Ureters Bladder (KUB) and Cardiac, were considered. CT dosimetric quantities and patient demographics were collected from data storage systems. Local typical values for DRLs were calculated for CTDIvol (mGy), dose length product (DLP) (mGy·cm) and effective doses (mSv) were estimated for each examination. The calculated DRLs were given as (median CTDIvol (mGy):median DLP (mGy·cm)): Head: 39:657; Chest: 13:451; CHR: 6:228; AP: 12:578; CAP: 20:807; KUB: 7:315, and Cardiac: 2:31. Estimated effective doses for Head, Chest, CHR, AP, CAP, KUB and Cardiac were 1.3, 12.7, 6.3, 12.5, 18.1, 5.8 and 0.8 mSv, respectively. The estimated DRLs will act as guidance doses to prevent systematic excess of patient doses.
UR - http://www.scopus.com/inward/record.url?scp=85178010568&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85178010568&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/3d16f047-e857-319a-bdae-9aa5121f64b5/
U2 - 10.1093/rpd/ncad225
DO - 10.1093/rpd/ncad225
M3 - Article
C2 - 37594414
AN - SCOPUS:85178010568
SN - 0144-8420
VL - 199
SP - 2148
EP - 2155
JO - Radiation Protection Dosimetry
JF - Radiation Protection Dosimetry
IS - 17
ER -