Fig. 1.
A 57-year-old woman with a suspicion of endolymphatic hydrops. Three dimensional real inversion recovery (3D-real IR) images obtained at pre- (a), 5 min after (b) and 4 h after intravenous administration of single dose gadolinium-based contrast agent (IV-SD-GBCA) (c). (d) Subtracted image (b–a). (e) Subtracted image (c–a). At 5 min after IV-SD-GBCA, the peri-venous enhancement appears along the cortical veins (arrows in b–d). The areas of enhancement spread into the surrounding cerebrospinal fluid (CSF) space (arrows in c and e).