Magnetic resonance imaging apparatus

Details Magnetic resonance imaging apparatus Magnetic resonance imaging apparatus

2006-12-26

2010-12-07

Koval, Melissa J (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

Reexamination Certificate

active

07847549

ABSTRACT:
A magnetic resonance imaging apparatus comprises object placing means for placing an object in an imaging space, translating means for translating the object in a given direction by translating the object placing means in the given direction continuously or step-wise, magnetic field generating means for exciting the desired region of the object by generating a static magnetic field, a gradient magnetic field in the imaging space, and a high-frequency magnetic field in the imaging space, signal detecting means for detecting a magnetic resonance signal from the object, and control unit for controlling the translating means, magnetic field generating means and the signal detecting means, and translating the object continuously or stepwise to a predetermined position at a predetermined speed so as to capture a magnetic resonance image of the object.The magnetic resonance imaging apparatus further comprises translation error detecting means for detecting an error of the position or the set value of the speed, and correcting means for correcting the error detected by the positional error detecting means.

REFERENCES:
patent: 2003/0216637 (2003-11-01), Ho et al.
patent: 2005/0171423 (2005-08-01), Ho et al.
patent: 2005/0285595 (2005-12-01), Green et al.
patent: 11-276454 (1999-10-01), None
patent: WO02/04970 (2002-01-01), None

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