A circuit for use in a system for magnetic resonance (MR) to reduce the interference of a physiological signal Mr. s (f); electrocardiogram; and method for use in a system is to reduce interference of a physiological signal Mr. s (f)

摘要

Short circuit for use in a system for magnetic resonance (MR) to reduce the interference of a physiological signal Mr. s (f); electrocardiogram; and method for use in a system for reducing interference Mr. Mr. a signal s (f), a physiological circuit (32) for use in a SIS. The theme of magnetic resonance (MR) to reduce the interference of a physiological signal Mr. s (f) includes a priThe first node addition / subtraction (36), a high pass filter (40), and a second node addition / subtraction (42).The first node addition / subtraction (36) sends a first signal (34) including magnetic interference frequency 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 combines the subtrativamente the second signal with the prime Iro signal to generate a difference signal n (f) and (f).The high pass filter (40) filters the difference signal n (f), and (f) of the first node addition / subtraction. The second node addition / subtraction (42) combines subtrativamente the first signal s (f) + n (f) (34) and the filtered signal H (f) * [n (f), and (f) of the high pass filter, and generates the second signal s (f) + e (f) (38). 1 / 1