Siemens Aktiengesellschaft

Siemens Healthcare Gmbh

Siemens Healthineers Ag

Sven Heggen

Michael Frank

Nikolaus Demharter

Ernst Mustafa

Jürgen Röβler

Jürgen Rössler

Bernd Assmann

Markus Vester

Stephan Biber

Jan Bollenbeck

Martin Nisznansky

A device for recovering a temporal reference in a free-running magnetic resonance tomography (MRT) receive chain includes a time reference encoder and a time reference decoder. The time reference encoder is configured to generate a modulation signal as a function of a reference clock, where the modulation signal is configured for a correlation with a temporal resolution less than a maximum predetermined phase deviation and a maximum that may clearly be identified. The time reference decoder is configured to receive, via the first signal input, a receive signal as a function of the modulation signal, perform a correlation with a reference signal, and generate a signal as a function of a temporal reference of the modulation signal in the receive signal in relation to the reference signal.

Device and method for recovering a temporal reference in free-running MR receive chains

A measuring device is provided. The measuring device has at least one sensor unit for capturing a cardiac signal, a postprocessing unit and a signal transfer unit for signal transfer between the at least one sensor unit and the postprocessing unit. The at least one sensor unit has at least one acoustic sensor element.

Measuring device and magnetic resonance device comprising a measuring device

A measuring device for a magnetic resonance device is provided. The measuring device has a sensor unit. The sensor unit includes at least one acoustic sensor element for detecting heart sounds of a patient. The sensor unit also includes a resonating body unit. The resonating body unit has a hollow space for filtering interfering signals emitted by the magnetic resonance device from the heart sounds of the patient.

Measuring device and a magnetic resonance device with the measuring device

The invention relates to a correction method for correcting interference due to gradient injections in ECG signal data records recorded in a magnetic resonance device by an ECG measuring device. A first correction data record is determined with the ECG measuring device located in a first position. A second correction data record is determined by the ECG measuring device located in a second position. An ECG signal data record is measured by the ECG measuring device located in a defined position. A modified correction data record is defined as a function of the first correction data record and the second correction data record and the first and second position and the defined position of the ECG measuring device. The ECG signal data record is corrected based on the modified correction data record.

Correction method and magnetic resonance device

The invention relates to a method for checking ECG signals measured by an ECG measuring device having at least three electrodes for the presence of interference errors. At least three voltages are measured on a closed circulation path across the electrodes of the ECG measuring device. A monitoring value is calculated from the three measured voltages. A presence of an error is checked by determining a deviation of the monitoring value from a reference value. An error signal is outputted if an error is presented. The ECG measuring device has a further processing unit for processing voltage signals between a different pair of electrodes and a monitoring unit for calculating the monitoring value.

Method for checking ECG signals and ECG measuring device

The invention relates to a correction method for correction of noise resulting from gradient artifacts in ECG signal data records recorded in a magnetic resonance device by an ECG measuring apparatus. A first correction data record is determined with a reference point of the ECG measuring apparatus located at a first position in the magnetic resonance device. An ECG signal data record is measured with the reference point of the ECG measuring apparatus located at a second position in the magnetic resonance device. A modified correction data record is specified as a function of the first correction data record and the first and second position of the reference point. The ECG signal data record is corrected based on the modified correction data record.

The invention relates to an EKG measurement device. The EKG measurement device comprises a number of EKG electrodes and a common-mode measurement unit connected on its input side to the EKG electrodes. Inventively an EKG trigger unit is connected on its input side to the EKG electrodes and to the common-mode measurement unit.

Growing community of inventors

Erlangen, Germany

Sven Heggen