PMID- 27830296
OWN - NLM
STAT- MEDLINE
DCOM- 20170911
LR  - 20181113
IS  - 1432-1998 (Electronic)
IS  - 0301-0449 (Linking)
VI  - 47
IP  - 2
DP  - 2017 Feb
TI  - Radiation dose levels in pediatric chest CT: experience in 499 children evaluated 
      with dual-source single-energy CT.
PG  - 161-168
LID - 10.1007/s00247-016-3731-7 [doi]
AB  - 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. MATERIALS AND 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 (CTDIvol(32)) was 0.83 mGy (standard 
      deviation [SD] 0.20 mGy; interquartile range 0.72 to 0.94; median 0.78); the mean 
      DLP(32) was 21.4 mGy.cm (SD 9.1 mGy.cm; interquartile range 15 to 25; median 
      19.0); and the mean size-specific dose estimate (SSDE) was 1.7 mGy (SD 0.4 mGy; 
      interquartile range 1.5 to 1.9; median 1.7). The DLP(32), CTDI(vol32) and SSDE 
      were found to be statistically significant in the five weight categories 
      (P < 0.0001). CONCLUSION: 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 DLP(32), 0.78-1.25 mGy 
      for the CTDI(vol32) and 1.6-2.1 mGy for the SSDE.
FAU - Martine, Remy-Jardin
AU  - Martine RJ
AD  - Department of Thoracic Imaging, Hospital Calmette, CHU Lille (EA 2694) University 
      of Lille, F-59000, Lille, France. martine.remy@chru-lille.fr.
FAU - Santangelo, Teresa
AU  - Santangelo T
AD  - Department of Thoracic Imaging, Hospital Calmette, CHU Lille (EA 2694) University 
      of Lille, F-59000, Lille, France.
AD  - Department of Imaging, Bambino Gesu Children's Hospital, Rome, Italy.
FAU - Colas, Lucie
AU  - Colas L
AD  - Department of Thoracic Imaging, Hospital Calmette, CHU Lille (EA 2694) University 
      of Lille, F-59000, Lille, France.
FAU - Jean-Baptiste, Faivre
AU  - Jean-Baptiste F
AD  - Department of Thoracic Imaging, Hospital Calmette, CHU Lille (EA 2694) University 
      of Lille, F-59000, Lille, France.
FAU - Duhamel, Alain
AU  - Duhamel A
AD  - Department of Biostatistics; CHU Lille, University of Lille (EA 2694) , F-59000, 
      Lille, France.
FAU - Deschildre, Antoine
AU  - Deschildre A
AD  - Department of Pediatric Pulmonology,, CHU Lille - University of Lille, Lille, 
      France.
FAU - Remy, Jacques
AU  - Remy J
AD  - Department of Thoracic Imaging, Hospital Calmette, CHU Lille (EA 2694) University 
      of Lille, F-59000, Lille, France.
LA  - eng
PT  - Journal Article
DEP - 20161109
PL  - Germany
TA  - Pediatr Radiol
JT  - Pediatric radiology
JID - 0365332
SB  - IM
MH  - Adolescent
MH  - Body Weight
MH  - Child
MH  - Child, Preschool
MH  - Female
MH  - Humans
MH  - Infant
MH  - Male
MH  - *Radiation Dosage
MH  - Radiography, Thoracic/*methods
MH  - Retrospective Studies
MH  - Tomography, X-Ray Computed/*methods
OTO - NOTNLM
OT  - Chest
OT  - Children
OT  - Computed tomography
OT  - Dual-source computed tomography
OT  - Lungs
OT  - Peak kilovoltage
OT  - Radiation dose
EDAT- 2016/11/11 06:00
MHDA- 2017/09/12 06:00
CRDT- 2016/11/11 06:00
PHST- 2015/12/31 00:00 [received]
PHST- 2016/10/07 00:00 [accepted]
PHST- 2016/09/24 00:00 [revised]
PHST- 2016/11/11 06:00 [pubmed]
PHST- 2017/09/12 06:00 [medline]
PHST- 2016/11/11 06:00 [entrez]
AID - 10.1007/s00247-016-3731-7 [pii]
AID - 10.1007/s00247-016-3731-7 [doi]
PST - ppublish
SO  - Pediatr Radiol. 2017 Feb;47(2):161-168. doi: 10.1007/s00247-016-3731-7. Epub 2016 
      Nov 9.