Changes in perfusion parameters and tumour volume during preoperative chemotherapy.

Perfusion parameters and tumour volume before, after first series of chemotherapy and after third series of chemotherapy grouped by clinical response. Reported values are median values and interquartile range.*Odds ratio and 95% confidence intervals are reported on both absolute changes and changes in percentage using logistic regression. Significant p-values are highlighted.**Although the median is higher after first series of chemotherapy versus baseline, the median change is negative.