High resolution 3D imaging of the inner ear with a modified fast spin-echo pulse sequence

✍ Scribed by James N. Lee; Brian D. King; Dennis L. Parker; Henry R. Buswell; H. Ric Harnsberger

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 375 KB
• Volume: 6
• Category: Article
• ISSN: 1053-1807
• DOI: 10.1002/jmri.1880060139

✦ Synopsis

A fast spin-echo pulse requence is described that producer high resolution images of the Inner ear Without suoceptibility artifacts. It uses thin overlapping slices that can be reformatted in multiple projections to provide a view of the 3D geometry of Inner ear structures, such aa the cochlea, vestibule, semicircular canals, and internal auditory canal. It has proven useW in screening adults for the presence of acowth schwanin children With sensorineural hearing loss. noma end h identifyine 6truCtUd congenital 1eSiOns Index tcrmm: Fast spin echo schwannoma Sensorlneural hearing loss JyRl 1 -1:223-225 lnner ear * SusceptIbUty arUfact * Acoustlc Abbrch-FSE = fast spin ccho. MlP = maximum Intensity projection, DTPA = dlethylenetriamine pentaacetlc actd. RF = radiofrequency, SNR = signal-to-noise ratlo. NEX = number of excitations, GRASS = gradlent-recalled acquisition in the steady state, CPA = ccrebellopontlne angle, IAC = Internal auditmy canal. From the Medlcal Imaging Research Lab. AC 213 School of Medlcine. Unlversity of Utah. Salt Lake City, Utah 84132.