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Related Experiment Video

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X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
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Female gonadal shielding with automatic exposure control increases radiation risks.

Summer L Kaplan1,2, Dennise Magill3, Marc A Felice3

  • 1Department of Radiology, The Children's Hospital of Philadelphia, 34th Street & Civic Center Boulevard, Philadelphia, PA, 19104, USA. kaplans2@email.chop.edu.

Pediatric Radiology
|October 20, 2017
PubMed
Summary
This summary is machine-generated.

Female gonadal shielding during pelvic X-rays with automatic exposure control (AEC) increases radiation dose to sensitive organs like the colon, stomach, and ovaries. This practice may be inadvisable due to increased radiation risks.

Keywords:
Automatic exposure controlGonadal shieldGonadsOvariesRadiation doseRadiographyShielding

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Area of Science:

  • Radiology
  • Medical Physics
  • Radiation Protection

Background:

  • Gonadal shielding is a common practice in radiography.
  • Current gonadal radiation risk estimates are lower than those for the colon and stomach.
  • Female gonadal shields can interfere with automatic exposure control (AEC) sensors.

Purpose of the Study:

  • To evaluate the impact of female gonadal shielding on dose-area product (DAP) and organ dose during pelvis radiography with AEC.
  • To quantify changes in radiation dose when using gonadal shielding in conjunction with AEC.

Main Methods:

  • Pelvis radiography was performed on adult and pediatric dosimetry phantoms using AEC.
  • Dose-area product (DAP) and milliampere-seconds (mAs) were recorded.
  • Organ absorbed dose was measured at internal sites using film dosimetry, with and without a female gonadal shield.

Main Results:

  • Female gonadal shielding with AEC significantly increased DAP (63-147%) and absorbed organ dose to unshielded organs (colon, stomach, ovaries) (17-100%).
  • Shielding decreased absorbed dose under the shield (16-67%), but this was offset by increases elsewhere.
  • The adult phantom experienced greater increases in DAP and organ dose compared to the pediatric phantom.

Conclusions:

  • Combining female gonadal shielding with AEC in pelvic radiography increases radiation dose to radiosensitive organs and unshielded ovaries.
  • Improper use of gonadal shields is a known issue.
  • The findings suggest that female gonadal shielding may be inadvisable due to the increased radiation risks it poses.