Title :

Radiation dose levels in pediatric chest ct: experience in 499 children evaluated with dual-source single-energy ct

Author(s) :

Remy, Martine [Auteur]
Evaluation des technologies de santé et des pratiques médicales - ULR 2694 [METRICS]
Santangelo, Teresa [Auteur]
Colas, Lucie [Auteur]
Faivre, Jean-Baptiste [Auteur]
Duhamel, Alain [Auteur]
Evaluation des technologies de santé et des pratiques médicales - ULR 2694 [METRICS]
Deschildre, Antoine [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Remy, Jacques [Auteur]

Journal title :

Pediatric radiology

Abbreviated title :

Pediatr. Radiol.

Volume number :

47

Pages :

161-168

Publication date :

2017-02-01

ISSN :

0301-0449

English keyword(s) :

Chest
Computed tomography
Dual-source computed tomography
Radiation dose
Lungs
Peak kilovoltage
Children

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

BACKGROUND: The availability of dual-source technology has introduced the possibility of scanning children at lower kVp with a high-pitch mode, combining high-speed data acquisition and high temporal resolution. OBJECTIVE: ...
Show more >BACKGROUND: The availability of dual-source technology has introduced the possibility of scanning children at lower kVp with a high-pitch mode, combining high-speed data acquisition and high temporal resolution. OBJECTIVE: To establish the radiation dose levels of dual-source, single-energy chest CT examinations in children. METHODS: We retrospectively recorded the dose-length product (DLP) of 499 consecutive examinations obtained in children <50 kg, divided into five weight groups: group 1 (<10 kg, n = 129); group 2 (10-20 kg, n = 176); group 3 (20-30 kg, n = 99), group 4 (30-40 kg, n = 58) and group 5 (40-49 kg, n = 37). All CT examinations were performed with high temporal resolution (75 ms), a high-pitch mode and a weight-adapted selection of the milliamperage. RESULTS: CT examinations were obtained at 80 kVp with a milliamperage ranging between 40 mAs and 90 mAs, and a pitch of 2.0 (n = 162; 32.5%) or 3.0 (n = 337; 67.5%). The mean duration of data acquisition was 522.8 ± 192.0 ms (interquartile range 390 to 610; median 490). In the study population, the mean CT dose index volume (CTDIvol323232vol32 CONCLUSIONS: This study establishes the radiation dose levels for dual-source, single-kVp chest CT from a single center. In the five weight categories, the median values varied 15-37 mGy.cm for the DLP32vol32Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CHU Lille
CNRS
Inserm
Institut Pasteur de Lille
Université de Lille

Collections :

• METRICS : Evaluation des technologies de santé et des pratiques médicales - ULR 2694

Submission date :

2019-12-09T18:15:49Z