Isoeffect curve for radiation myelopathy.

摘要: In a previous publication on the effect of X-ray dose fractionation total required to produce radiation myelopathy in rats, we showed that slope Strandqvist-type isoeffect curve between one and 30 fractions cervical or lumbar cord was 0.4 (White Hornsey, 1978). This good agreement with observation Van der Kogel (1977) different strain rat, who obtained value 0.44 20 fractions. The slopes these curves are all steeper than for skin damage which is 0.34, decreasing 0.27 as increased (Fowler, 1971). four given same overall treatment time, gives exponent N Ellis formula (total αNαTβ, 1969), 0.35 There no indication reducing increasing number at least up seen both ...