Krishnan L, St George F J, Mansfield C M, Krishnan E C
Med Phys. 1983 Jan-Feb;10(1):96-9. doi: 10.1118/1.595279.
The effect of a silicone gel breast prosthesis on the absorbed dose distribution of 9-20 MeV electron beams and 1.25-15 MV photon beams was studied. Compared to water measurements, at depths smaller than the practical range of the electron beams, the central axis depth dose values below the prosthesis were lower for all energies by as much as 3.5%. However, at depths near the practical range, the central axis depth dose values for the prosthesis were greater than that of water by as much as 33%. Since this occurs near the end of the electron range, the resultant difference may not be clinically significant. Results of the effect of breast prosthesis on photon depth dose distributions reveal that no clinically significant perturbation is produced by the breast prosthesis using Co-60, 6- and 15-MV radiations.
研究了硅胶凝胶乳房假体对9 - 20 MeV电子束和1.25 - 15 MV光子束吸收剂量分布的影响。与水模测量相比，在小于电子束实际射程的深度处，假体下方所有能量的中心轴深度剂量值比水模低多达3.5%。然而，在接近实际射程的深度处，假体的中心轴深度剂量值比水模高多达33%。由于这种情况发生在电子射程末端附近，因此产生的差异可能在临床上不显著。乳房假体对光子深度剂量分布影响的结果表明，使用钴 - 60、6 MV和15 MV辐射时，乳房假体不会产生临床上显著的干扰。
