Fig. 5.

Relationship between the lymphocyte radiosensitivity term, α, and the ALC nadir difference when increasing the dose rate (fractionation kept constant at 15 fractions) (A, left) and the relationship between the number of days to recovery to 80% ALC baseline (in log scale) and the ALC nadir difference when shortening fractionation from 15 to 5 fractions (beam-on time kept constant at 120 seconds) (B, right). The P value was determined from the Pearson correlation coefficient. Crosses denote a negative ALC nadir difference, whereas the circles denote a positive ALC nadir difference. Abbreviation: ALC = absolute lymphocyte count.