Joint motion in an open MR unit using MR tracking.
A system for active scan plane guidance during kinematic magnetic resonance (MR) examination of joint motion was developed utilizing an external tracking coil and MR tracking software. In a phantom study and during upright, weight-bearing, physiologic knee flexion, the external tracking coil maintained the scan plane through desired structures. Thus, MR tracking provides a robust method to guide the scan plane during MR imaging of active joint motion.
Department of Diagnostic Radiology, Stanford University School of Medicine, California 94305, USA.
A D
AD
Pearle
B L
BL
Daniel
A G
AG
Bergman
C F
CF
Beaulieu
P
P
Lang
C L
CL
Dumoulin
R D
RD
Darrow
A M
AM
Norbash
C L
CL
Napper
W
W
Hurtak
K
K
Butts
D001696:Biomechanical Phenomena; D006801:Humans; D007596:Joints / Q000502:physiology*; D007719:Knee Joint / Q000502:physiology*; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods*; D019047:Phantoms, Imaging