RT Journal Article
SR Electronic
T1 Improved MR Imaging of the Orbit at 1.5 T with Surface Coils
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 193
OP 196
VO 6
IS 2
A1 John F. Schenck
A1 Howard R. Hart, Jr.
A1 Thomas H. Foster
A1 William A. Edelstein
A1 Paul A. Bottomley
A1 Rowland W. Redington
A1 Christopher J. Hardy
A1 Robert A. Zimmerman
A1 Larissa T. Bilaniuk
YR 1985
UL http://www.ajnr.org/content/6/2/193.abstract
AB A method for obtaining localized high-resolution magnetic resonance (MR) images of the eye and orbit is demonstrated. The method uses modified surface receiver coils placed immediately adjacent to the anatomy to detect the MR signal. Surface coils provide enhanced sensitivity for imaging voxels close to the surface of the body while limiting the received patient-generated noise. The resulting improvement in signal-to-noise ratio allows for a reduction in the imaging voxel size to about 0.5 × 0.5 × 5 mm in scan times of 3.4–5 min. At this level of resolution, anatomic detail in the orbital region previously unobservable in MR images is seen.