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[Dosimetry with thermoluminescence during mammography]
D S Tahiri1, J P Gérard, C Ginestet
1Centre de Médecine nucléaire, Hôpital neurocardiovasculaire de Lyon.
Journal De Radiologie
|January 1, 1990
Summary
This study measured mammography radiation doses in patients using lithium fluoride thermoluminescence (TL) dosimeters. Results show radiation doses are very low, minimizing risks associated with breast cancer detection.
Area of Science:
- Medical Physics
- Radiological Dosimetry
Context:
- Mammography is a crucial tool for breast cancer screening.
- Accurate in vivo dosimetry is essential for assessing patient radiation exposure during mammography.
- Understanding radiation doses helps balance diagnostic benefits against potential risks.
Purpose:
- To evaluate the in vivo radiation dose received by patients during mammography procedures.
- To measure skin entrance, skin exit, and midplane doses using lithium fluoride thermoluminescence (TL) dosimeters.
- To compare measured doses with existing literature and assess their safety.
Summary:
- A dosimetry study was conducted on 34 patients undergoing mammography.
- Lithium fluoride TL dosimeters measured radiation doses in cranio-caudal and medio-lateral views with compression.
- Skin entrance doses ranged from 0.15 to 1.75 cGy, skin exit doses from 0.001 to 0.21 cGy, and midplane doses from 0.07 to 0.48 cGy.
Impact:
- The study confirms that mammography doses are generally low, comparable to other findings.
- Low radiation doses are critical for reducing potential long-term risks in breast cancer screening.
- This research supports the safety and efficacy of mammography in early breast cancer detection.