DECRO External ECG
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Zoom on DECRO external ECG DECRO External ECG The DECRO External Telemetry Solution enables the external monitoring and recording of the heart's electrical activity, providing access to high-quality electrocardiogram (ECG) data with low noise and high resolution (24 bits) and sampling rate (500 Hz) without the need for surgery or anesthesia. Using surface electrodes, placed on the animal’s previously sheared skin, in a single LEAD configuration (I, II or III) and protected by the jacket, the animals remain freely-moving and socially housed. How does it work? ECG electrodes (under the jacket) Small Bluetooth Emitter Cardiac - Skin patches The surface electrodes are used to monitor the ECG signal, which is then recorded by an emitter placed on the backpack of the jacket. This emitter sends the ECG signal wirelessly through Bluetooth to an acquisition unit that includes proprietary analysis software. Note: no receivers are needed under the cage! The software pre-processes the signal by removing noise and eliminating baseline wander. A configurable algorithm is then used to automatically extract features such as amplitudes and intervals from the ECG signal. Algorithm configuration can be done according to the animal species (multi species module) and to the animal activity (resting, running...). Male Wistar rat dressed with DECRO connected jacket during an habituation session on treadmill What are the physiological cardiac parameters that I have access to? Our software uses a probabilistic approach to automatically detect QRS complex and calculates RR intervals in a beat-by-beat mode, resulting in a very robust cardiac cycle detection. The cardiac physiological variables derived from these detections include QRS complex amplitude (mV), RR intervals (ms), and heart rate (bpm), which are all available in our ECG analyzer module (3,4).

Advanced features: ECG delineation module Our software enables a complete ECG analysis with automatic delineation of fiducial points on averaged ECG patterns (configurable parameters). This approach effectively reduces the effects of noise and movement artifacts (1), providing a more robust ECG delineation. Example of ECG cycles (N=60) used to generate the ECG pattern Using a probabilistic approach, our software automatically detects location of P-, Q-, R-, S-, and T-waves, as well as the beginning and end of each wave. If necessary, the software enables the adjustment of event locations or...