RT Journal Article
SR Electronic
T1 "Truncation" artifact in MR images of the internal auditory canal.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 793
OP 794
VO 8
IS 5
A1 Daniels, D L
A1 Czervionke, L F
A1 Breger, R K
A1 Strandt, J A
A1 Hendrix, L E
A1 Falk, R
A1 Pojunas, K W
A1 Williams, A L
A1 Haughton, V M
YR 1987
UL http://www.ajnr.org/content/8/5/793.abstract
AB Dry skulls and a phantom were studied to determine whether an intracanalicular dark band in MR images of some acoustic neuromas could be artifactual. A "truncation" artifact was detected in the internal auditory canals of the dry skulls and in a simulated internal auditory canal of the phantom when the width of the canal approximately equaled 4 X (field of view) /N, where N equals 128 or 256, depending on the number of gradient steps chosen. The "truncation" artifact should not be confused with CSF between normal nerves when a canal contains tumor.