|
FIG 3. Effect of MR sequence on visibility of the pulvinar sign.
A, Nonenhanced T1-weighted image. High signal intensity was relatively rarely detected on T1-weighted images, which was thought to be secondary to the T1-shortening effect from marked prion protein deposition. Contrast enhancement was not seen in any case.
B–D, The pulvinar sign was more easily seen on T2-weighted (B) and PD-weighted (C) images, but was clearly visible on FLAIR (D) images.
E, DW image was also positive in one of two available cases.
|