Fig. 2.
A) The hypoxic volume determined by hypoxia-PET as a function of tumor volume for the 17 cohorts included in the pooled analysis. Every cohort is presented in a unique color, and each point represents one individual patient. Lines denote the linear regression of each cohort and thick black dashed line illustrates the linear regression of 323 patients (with regression coefficients in the figure, P <.001).