Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Reexamination Certificate
2007-05-08
2007-05-08
Shrivastav, Brij B. (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
C324S309000
Reexamination Certificate
active
11280634
ABSTRACT:
A method and apparatus for magnetic resonance (MR) imaging of a moving object, and in particular MR imaging by retrospectively selecting and sorting the MR data acquired with the known prior positions of an orthopedic joint. A mechanical apparatus limits the motion of the joint while an optical or electronic apparatus determines the instantaneous articulation position of the joint, for example its rotational angle. Either partial or complete MR data are acquired asynchronously with respect to various positions of joint movement, and the MR data are then retrospectively selected and sorted to form images of the joint at the various articulated positions. This retrospective selecting and sorting allows sharp images to be acquired using MR data acquired over several flexions and extensions of the joint, regardless of the periodicity or velocity of its motion.
REFERENCES:
patent: 4694837 (1987-09-01), Blakeley et al.
patent: 4710717 (1987-12-01), Pelc et al.
patent: 5154178 (1992-10-01), Shah
patent: 5931781 (1999-08-01), De Boer
patent: 6267733 (2001-07-01), Peterson et al.
patent: 2005/0096543 (2005-05-01), Jackson et al.
Shrivastav Brij B.
Siemens Medical Solutions USA , Inc.
LandOfFree
Method and apparatus for improving the quality of kinematic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for improving the quality of kinematic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for improving the quality of kinematic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3757461