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[Radiation Dose Considerations for Breast Sonographers Following 99mTc-HMDP Bone Scan Administration].
Ryota Tsukada1, Kei Wagatsuma2, Hiroaki Suzuki3
1Department of Radiology, The Jikei University School of Medicine, Daisan Hospital.
Radiation exposure to breast sonographers from patients undergoing bone scans is linked to the time between radiopharmaceutical administration and sonography, exam duration, and radioactivity levels. Shorter intervals, longer exams, and higher radioactivity increase sonographer radiation dose.
Area of Science:
- Nuclear medicine and diagnostic imaging.
- Radiation safety in healthcare settings.
Context:
- Patients administered radiopharmaceuticals for bone scans can pose radiation exposure risks to healthcare professionals.
- Breast sonographers performing ultrasounds on these patients may receive occupational radiation doses.
Purpose:
- To identify factors contributing to radiation exposure in breast sonographers.
- To investigate the relationship between patient radiopharmaceutical administration and sonographer radiation dose.
Summary:
- This study measured radiation exposure in six sonographers during breast sonography of 59 patients who received 99mTc-HMDP.
- Radiation dose was correlated with the time from radiopharmaceutical administration to sonography, sonography examination time, and estimated radioactivity.
- Increased sonographer exposure was associated with shorter time intervals, longer examination times, and higher radioactivity levels.
Impact:
- Findings highlight key variables influencing sonographer radiation exposure during breast sonography.
- Suggests the need for education among physicians and sonographers regarding radiation safety protocols in nuclear medicine.
- While current exposure levels were below limits, proactive measures can further minimize risks.
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