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The radiobiological aspects in the blocking of sensitive structures from the irradiation field

Dubben, H.H.; Herrmann, T.

Strahlentherapie und Onkologie Organ der Deutschen Rontgengesellschaft . 171(4): 214-217; Discussion 218

1995

ISSN/ISBN: 0179-7158
PMID: 7740409
Document Number: 442581
In some cases the total dose has to be reduced in a section of an irradiation field by means of a transmission block. This can be performed in 2 different ways: 1. A part of the planned fractions is blocked. 2. The dose of each fraction is reduced using a transmission block (transmission < 100%). For both methods the biological tumor and normal tissue doses were calculated using the linear-quadratic model. A clinical case is discussed. With transmission blocks a therapeutic gain can be obtained.

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