Figure Legends
Fig. 1 An example of the region of interest (ROI) setting on a
contrast-enhanced 3D-FLAIR image. The ROI (the area ofROI =
1mm2) for the cochlear fluid signal intensity
measurement is manually drawn around the basal turn of the cochlea.
Circular ROIs for the signal intensity measurement of the brainstem (the
area ofROI = 4mm2) and the cerebellopontine angle (the
area ofROI = 4mm2) are set in the most artefact-free
area of the brainstem center and the ipsilateral cerebellopontine angle.
Fig. 2 A 39-year-old male Ménière’s disease. Fig. a 3D-FLAIR images at
the left cochlear basal turn level were obtained 4 h, 6 h ,8 h and 10 h
after the administration of GBCM. Signal intensity of the cochlear fluid
in the basal turn is highest on the images obtained 6 h after contrast
administration (arrows). Fig. bThe signal intensity ratio between the
cochlea and the brainstem on 3D-FLAIR image were plotted for the
patient. The signal intensity ratio (SIR) was highest at 6 h after
contrast administration.
Fig. 3 A 52-year-old male Ménière’s disease. Fig. aThescan angle with
the anterior skull base in the sagittal position was 10.8 degrees. When
scanned at this angle, we get Fig. b. Fig. b The 3D FLAIR image display
the relative maximum areas of the saccule (solid arrows), utricle
(dotted arrows) and the lateral semicircular canal (arrowheads) on the
same level. Fig. cThescan angle with the anterior skull base in the
sagittal position was 0 degrees. When scanned at this angle, we get Fig.
d. Fig. d The 3D FLAIR image display the saccule (solid arrows), utricle
(dotted arrows), but the posterior part of the lateral semicircular
canal (arrowheads) is not shown on the same level simultaneously.