Koninklijke Philips Corporation N.V.

David Dennis Salk

Marc Anthony Chappo

Mark Douglas Herold

Kristin A Babroski

Adam S Elkurd

A static charge filter () removes static charge in a cardiac electrical signal. The static charge filter includes a first amplifier () configured to amplify an input signal, which includes the cardiac electrical signal and static charge from an electrode, which is in a path of an X-ray beam. The static charge filter further includes a limiter () configured to limit a maximum voltage of the signal based on a predetermined clamping threshold, producing a voltage clamped signal. The static charge filter further includes a filter () configured to filter high frequency components of the voltage clamped signal, producing a filtered signal. The static charge filter further includes a second amplifier () configured to scale an amplitude of the filtered signal so that cardiac electrical signal in an output signal has a same voltage level as a voltage level of the cardiac electrical signal in the input signal.

Static charge filter for cardiac electrical signals corrupted with static charge and routed to an electrocardiograph (EKG) monitor

An adjustable phantom () includes a base (), an actuator () and a phantom (). The phantom includes first () and second portions (), each having a different value of a physical characteristic measured by a scanner (). The phantom () is movable with respect to the base (). In one embodiment, the phantom is well suited to simulating the arrival of contrast agent in a contrast enhanced imaging examination.

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Parma, OH, United States of America

David Dennis Salk