[Effect of x-ray spectrum transformation on bone marrow dose]
Summary
Spectral transformation of x-ray radiation in soft tissue impacts absorbed dose calculations. Neglecting this spectral shift leads to underestimation of medullary doses during x-ray procedures.
Area of Science:
- Medical Physics
- Radiation Dosimetry
Context:
- X-ray radiation undergoes spectral transformation when passing through soft tissues.
- Accurate absorbed dose calculation in red bone marrow is crucial for patient safety.
Purpose:
- To analyze spectral transformation of x-ray radiation in soft tissue.
- To develop a method for calculating absorbed dose in red bone marrow considering spectral transformation.
Summary:
- Analyzed 32 Monte Carlo computed and 16 experimentally measured depth spectra.
- Described a method for calculating red bone marrow absorbed dose with spectral transformation.
- Demonstrated that ignoring spectral transformation leads to underestimation of medullary doses.
Impact:
- Neglecting spectral transformation can lead to underestimation of patient medullary doses.
- Errors can reach 40% for local red bone marrow doses and 1-7% for mean medullary doses.
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