REDUCTION OF MRI INTERFERENCE FROM THE ELECTROCARDIOGRAM USING LEAD INFORMATION

WIPO Patent Application WO/2013/175349

A3

A circuit (32) for use in an magnetic resonance (MR) system to reduce MR interference of a physiological signal S(f) includes a first summing/subtraction node (36), a high pass filter (40), and a second summing/subtraction node (42). The first summing/subtraction node (36)inputs a first signal (34) including radio frequency magnetic interference N(f) and a physiological signal S(f), and a second signal (38)including the physiological signal S(f) and an error signal E(f), and subtractively combines the second signal with the first signal to generate a difference signal N(f) –E(f). The high pass filter (40) filters the difference signal N(f)-E(f) from the first summing/subtraction node. The second summing/subtraction node (42) subtractively combines the first signal S(f)+N(f) (34) and the filtered signal H(f) * [N(f)-E(f)] from the high pass filter, and generates the second signal S(f)+E(f) (38).

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REY EDUARDO MARIO (NL)
LIS BERNARD (NL)

PCT/IB2013/053947

March 06, 2014

May 15, 2013

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KONINKL PHILIPS NV (NL)

A61B5/00; A61B5/308; A61B5/055; G01R33/28

EP0470764A2	1992-02-12
US6148229A	2000-11-14
US6052614A	2000-04-18
US20090088654A1	2009-04-02

STEFFEN, Thomas et al. (Building 5, AE Eindhoven, NL)

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