Figure 2.

Example of carotid IPH as evidence by hyperintensity on MPRAGE sequences. (a) 3D reformatted post-gadolinium MRA of the left common, external and internal carotid arteries demonstrating no significant areas of stenosis. (b) Oblique coronal and (c) axial fat-suppressed MPRAGE demonstrating an area of hyperintensity within the left ICA suggesting the presence of IPH (arrows). A normal-appearing ECA is visualized anterior to the area of IPH seen in (c) (dashed arrow). (d) Sagittal reformatted fat-suppressed MPRAGE again showing the presence of IPH in the ICA (solid arrow) with a normal-appearing ECA (dashed arrow) and CCA.

3D: three-dimensional; CCA: common carotid artery; ECA: external carotid artery; ICA: internal carotid artery; IPH: intraplaque hemorrhage; MPRAGE: magnetization prepared–rapid gradient echo; MRA: magnetic resonance angiography.