ESTRO 2022 - Abstract Book

S1556

Abstract book

ESTRO 2022

Heterogeneously vascularised tumours showed lower ADC values in poorly vascularised areas, and higher in well- vascularised, similarly to small homogeneously vascularised tumours (Fig. 2). No significant difference was found between ADC values from TSE and EPI-RG (3b) except for small tumours, which can be explained by distortion.

Conclusion Equivalent ADC values can be obtained with DWI-TSE or DWI-EPI if distortion is corrected (RG). The monoexponential approach requires few b-values and the biexponential must be used to consider more b-values. TSE implies longer