IMAGE QUALITY STUDY OF RADIATION-REDUCED COMBINED CHEST AND ABDOMEN/PELVIS CT COMPARED WITH A STANDARD PROTOCOL.
Journal
Radiation protection dosimetry
ISSN: 1742-3406
Titre abrégé: Radiat Prot Dosimetry
Pays: England
ID NLM: 8109958
Informations de publication
Date de publication:
12 Nov 2021
12 Nov 2021
Historique:
received:
10
09
2021
revised:
10
09
2021
accepted:
15
09
2021
pubmed:
13
10
2021
medline:
20
11
2021
entrez:
12
10
2021
Statut:
ppublish
Résumé
The purpose of this study is to examine radiation doses and image quality of a low-dose (LD) protocol for chest and abdomen/pelvis (CAP) CT compared with a standard (STD) protocol. A total of 361 patients were included between October 2019 and April 2020; 104 patients with LD-protocol (100 kV, ref mAs 80 (chest)/145 (abdomen/pelvis)) and 257 patients with STD-protocol (100 kV, ref mAs 100 (chest)/180 (abdomen/pelvis)) at second-generation dual-source CT. Radiation doses for CTDIvol and DLP, and objective and subjective image qualities of 50 examinations from each group were evaluated. The LD-protocol applied significantly lower radiation doses compared with the STD-protocol (p < 0.001), achieving a dose reduction by 37% for the median DLP in chest, 19% in abdomen/pelvis and 22% in total. Median total DLP was 342 mGy·cm (LD) vs. 436 mGy·cm (STD). The LD-CAP CT protocol achieved a significant dose reduction far below national diagnostic reference levels, ensuring acceptable and good image quality.
Identifiants
pubmed: 34635920
pii: 6389641
doi: 10.1093/rpd/ncab147
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
190-198Subventions
Organisme : University Medicine Essen Academy
Organisme : German Research Foundation
ID : FU356/12-1
Organisme : Faculty of Medicine, University of Duisburg-Essen
Informations de copyright
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