MRI apparatus and method using sample filtering based on...

Details MRI apparatus and method using sample filtering based on... MRI apparatus and method using sample filtering based on...

2008-03-31

2009-12-01

Shrivastav, Brij B. (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

Reexamination Certificate

active

07626387

ABSTRACT:
An MRI apparatus includes a filtering control unit that filters discrete MR-signal values. A filter-coefficient setting unit sets a plurality of filter coefficients with respect to each point of sampling time, based on time-shift amounts corresponding to variations in an MR-signal frequency arising from temporal variations in the magnetic field strength. A product-sum operating unit filters the MR-signal values by performing a product-sum operation between the filter coefficients and the MR-signal values. An image-data creating unit creates image data based on the MR-signal values on which the filtering processing is performed.

REFERENCES:
patent: 5084675 (1992-01-01), Reinfelder et al.
patent: 5560361 (1996-10-01), Glusick
patent: 6771067 (2004-08-01), Kellman et al.
patent: 3112926 (2000-09-01), None

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