WebWe studied ventricular CSF pulsation artifact (VCSFA) on axial FLAIR images and its relationship to age and ventricular size. Methods: Fast FLAIR axial images were obtained on a 1.5-T unit (8000/150/2 [TR/TE/ excitations], inversion time = 2200, field of view = 24 cm, matrix = 189x256, and 5-mm interleaved sections). Two observers rated VCSFA ... WebApr 1, 2000 · Third ventricular CSF pulsation artifact in two subjects. A and B, Contiguous FLAIR axial images of a 67-year-old man referred for dizziness. The patient has a grade 2 third ventricular VCSFA in ...
Hyperintensity in the Subarachnoid Space on FLAIR MRI
WebNormal CSF flow is a consequence of both transmitted choroidal arterial pulsations and bulk flow resulting from continuous CSF production. Radionuclide CSF FS, or so-called radionuclide ventriculography, provides a safe physiological assessment of the functional anatomy of the various CSF compartments and constitutes the technique of choice to … WebJan 1, 2012 · Abstract and Figures. One of the major limitations of FLAIR imaging is the ventricular CSF pulsation artifact (VCSFA). This artifact could compromise the study of ventricular abnormalities by ... how many people have the name trace
Truncation Artifact in MR Ima~es of the Internal Auditory Canal
WebAug 3, 2024 · The sequences were qualitatively evaluated for overall image quality, general artifact, cerebrospinal fluid (CSF)-related artifact, and grey-white matter differentiation. The two sequences were compared for the total and two age groups (< 24 months vs. ≥ 24 months). Compressed sensing application in 3D T2-weighted imaging resulted in 8.5% ... WebAll discrete foci were confined to the noncallosal supratentorial white matter. The other nonfocal hyperintensities (anterior and posterior periventricular capping, diffuse parenchymal hyperintensity, septal hyperintensity, corticospinal tract hyperintensity, and CSF flow artifacts) were generally more common and prominent at 3T than at 1.5T. WebOct 1, 2001 · The authors compared high-signal-intensity flow-related artifacts present with a conventional two-dimensional (2D) fluid-attenuated inversion recovery (FLAIR) sequence with those seen with a single-slab, three-dimensional (3D) FLAIR sequence. Four readers graded the subarachnoid space and intraventricular artifacts, the pulsation artifacts, … how can lupus affect the lungs