Fig 2.

Identifying IPH on CE-MRA mask images in a 72-year-old man with a right cerebral ischemic event. Coronal and reconstructed axial (inset) sections from the mask (A) series show hyperintense signal intensity (arrows) in the right carotid artery wall. The high signal intensity (arrows) is again seen on the corresponding postcontrast images (B) but is removed after the mask images are subtracted from this series (C). (Asterisk indicates the lumen.) MIP images are generated from the subtracted series (D), so IPH information is lost.