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Pediatric Radiology

, Volume 37, Issue 3, pp 283–290 | Cite as

Radiation doses to children during modified barium swallow studies

  • Kelly A. WeirEmail author
  • Sandra M. McMahon
  • Gillian Long
  • Judith A. Bunch
  • Nirmala Pandeya
  • Kerry S. Coakley
  • Anne B. Chang
Original Article

Abstract

Background

There are minimal data on radiation doses to infants and children undergoing a modified barium swallow (MBS) study.

Objective

To document screening times, dose area product (DAP) and effective doses to children undergoing MBS and to determine factors associated with increased screening times and effective dose.

Materials and methods

Fluoroscopic data (screening time, DAP, kVp) for 90 consecutive MBS studies using pulse fluoroscopy were prospectively recorded; effective dose was calculated and data were analyzed for effects of behavior, number of swallow presentations, swallowing dysfunction and medical problems.

Results

Mean effective dose for the entire group was 0.0826 ± 0.0544 mSv, screening time 2.48 ± 0.81 min, and DAP 28.79 ± 41.72 cGy cm2. Significant differences were found across three age groups (≤1.0, >1.0–3.0 and >3.0 years) for effective dose (mean 0.1188, 0.0651 and 0.0529 mSv, respectively; P  <  0.001), but not for screening time or DAP. Effective dose was correlated with screening time (P = 0.007), DAP (P < 0.001), number of swallow presentations (P = 0.007), lower age (P = 0.017), female gender (P = 0.004), and height (P < 0.001). Screening time was correlated with total number of swallow presentations (P < 0.001) and DAP (P < 0.001).

Conclusion

Screening times, DAP, effective dose, and child and procedural factors associated with higher effective doses are presented for children undergoing MBS studies.

Keywords

Modified barium swallow Videofluoroscopic swallow study Pediatric dosimetry Effective dose 

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Kelly A. Weir
    • 1
    Email author
  • Sandra M. McMahon
    • 2
  • Gillian Long
    • 3
  • Judith A. Bunch
    • 3
  • Nirmala Pandeya
    • 4
  • Kerry S. Coakley
    • 5
  • Anne B. Chang
    • 6
  1. 1.Discipline of Paediatrics and Child Health, School of MedicineUniversity of QueenslandHerstonAustralia
  2. 2.SpeechNet Speech Pathology ServicesBrisbaneAustralia
  3. 3.Department of Medical ImagingRoyal Children’s HospitalHerstonAustralia
  4. 4.Queensland Institute of Medical ResearchHerstonAustralia
  5. 5.Biomedical Technology Services, Royal Brisbane and Women’s HospitalHerstonAustralia
  6. 6.Department of Respiratory MedicineRoyal Children’s HospitalHerstonAustralia

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