|
FIG 1. Conventional FLAIR images showing artifacts in the cerebellopontine angle cistern (A) and in the third ventricle (B). By combining the information from two reverse-ordered sequences, Scan 1 (C, D) and Scan 2 (E, F), the FAIS-FLAIR images result in a conspicuous absence of flow-related FLAIR artifacts (G, H). It is a simple summation of images, which are processed automatically in line with the image-array processor. Note flow-related artifacts lessen on Scan 1 and Scan 2, but image contrast is not constant. On Scan 1, signal intensity is increasing from C to D, whereas on Scan 2, it is decreasing from E to F.
|