High-resolution 3DFT MR imaging of the endolymphatic duct and soft tissues of the otic capsule.

ABSTRACT: This study compares the visualization of otic capsule anatomy by thin-section three-dimensional Fourier transformation (3DFT) MR imaging with that by high-resolution CT. The osseous margins of the otic capsule are delineated by high-resolution CT, while MR displays the soft-tissue structures. Routine two-dimensional Fourier transformation (2DFT) spin-echo MR techniques have been limited by slice thickness and signal to noise. Previous longer TE 3DFT gradient-echo MR images of the otic structures have been degraded by magnetic susceptibility effects, which limit spatial resolution and decrease signal to noise. These effects are especially prevalent in the otic capsule, where small soft-tissue structures interface with surrounding air and bone. We developed a high-resolution 3DFT MR techniqu

SUBMITTER: Brogan M 

PROVIDER: S-EPMC8367544 | biostudies-literature | 1991 Jan-Feb

REPOSITORIES: biostudies-literature