RT Journal Article
SR Electronic
T1 Magnetic susceptibility artifacts in gradient-recalled echo MR imaging.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1149
OP 1155
VO 9
IS 6
A1 Czervionke, L F
A1 Daniels, D L
A1 Wehrli, F W
A1 Mark, L P
A1 Hendrix, L E
A1 Strandt, J A
A1 Williams, A L
A1 Haughton, V M
YR 1988
UL http://www.ajnr.org/content/9/6/1149.abstract
AB Artifacts related to magnetic susceptibility differences between bone and soft tissue are prevalent on gradient-recalled echo images, particularly when long echo delay times are used. These susceptibility artifacts spatially distort and artifactually enlarge bone contours. This can alter the apparent shape of the spinal canal and exaggerate the degree of spinal stenosis seen in patients with cervical spondylosis. The effects of magnetic susceptibility artifacts in gradient echo imaging were studied in a phantom model and the results were correlated with MR images obtained in patients with cervical spondylosis.