RT Journal Article
SR Electronic
T1 Magnetic susceptibility effects secondary to out-of-plane air in fast MR scanning.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 439
OP 442
VO 9
IS 3
A1 Schick, R M
A1 Wismer, G L
A1 Davis, K R
YR 1988
UL http://www.ajnr.org/content/9/3/439.abstract
AB Areas of signal loss in brain overlying air-containing structures at the skull base are commonly observed on axial fast MR images. The nature of this effect, which can mimic the appearance of cerebral hemorrhage, is investigated in a phantom study and in a normal volunteer. The magnitude of the signal loss is found to be inversely related to the distance of the scanning plane from the air-containing structure and directly related to the echo time.