Low-field MRI of laser polarized noble gas.
NMR images of laser polarized 3He gas were obtained at 21 G using a simple, homebuilt instrument. At such low fields magnetic resonance imaging (MRI) of thermally polarized samples (e.g., water) is not practical. Low-field noble gas MRI has novel scientific, engineering, and medical applications. Examples include portable systems for diagnosis of lung disease, as well as imaging of voids in porous media and within metallic systems.
Tseng
C H
CH
Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA.
Wong
G P
GP
Pomeroy
V R
VR
Mair
R W
RW
Hinton
D P
DP
Hoffmann
D
D
Stoner
R E
RE
Hersman
F W
FW
Cory
D G
DG
Walsworth
R L
RL
D004058:Diffusion; D055590:Electromagnetic Phenomena; D004867:Equipment Design; D006371:Helium / Q000032:analysis*; D007834:Lasers; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy; D019047:Phantoms, Imaging
D006371:Helium