Molecular Imaging 2017

Therapy Response Assessment: DWI

Added value of DWI:  Assessment of CR post CRT  n=40  1.5T  DWI: b0, 1000  Qualitative assessment: Residual high signal intensity?

DWI better than T2 alone:

T2 (%)* Sens Spec Acc PPV NPV 45-55 77-79 70 45-46 79-81 DWI (%)* Sens Spec Acc PPV NPV 82-91 83 82-85 64-67 92-96

* >1 reader

Kim SH et al. Radiology 2009; 253 (1): 116-25