Hemorrhagic infarct with T2 blackout

Discussion:

T2 blackout is essentially the opposite effect to T2 shine through, namely the extremely low signal on T2* images results in loss of signal on DWI and ADC. This clearly does not reflect actual diffusion characteristics of the tissue. 

With no signal in a voxel on B=0 images, the DWI value will also be 0 (black) and ADC will be undefined (manipulating the DWI equation with B=0 results in a natural logarithm of 0/0, which is undefined - twice in fact). 

 

    Create a new playlist
Loading...