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