Radiation doses to children during modified barium swallow studies

Area of Science:

• Pediatric radiology
• Medical imaging safety

Background:

• Limited data exists on radiation doses for infants and children undergoing modified barium swallow (MBS) studies.
• Accurate dose assessment is crucial for pediatric radiation protection.

Purpose of the Study:

• To quantify screening times, dose area product (DAP), and effective doses in children undergoing MBS.
• To identify factors influencing screening times and effective dose in pediatric MBS.

Main Methods:

• Prospective recording of fluoroscopic data (screening time, DAP, kVp) for 90 consecutive MBS studies using pulse fluoroscopy.
• Calculation of effective dose and analysis of correlations with patient and procedural variables.

Main Results:

• Mean effective dose was 0.0826 mSv, with significant variations across age groups (P < 0.001).
• Effective dose correlated with screening time, DAP, swallow presentations, younger age, female gender, and height.
• Screening time correlated with swallow presentations and DAP.

Conclusions:

• This study presents screening times, DAP, and effective doses for pediatric MBS.
• Identified factors associated with higher effective doses in children undergoing MBS, aiding in radiation dose optimization.