OptiRhythm™ OptiRhythm™

The OptiRhythm sensor is primarily an accelerometer, capturing the the audio energy of the heart inside the chest cavity by measuring structural vibrations.

To deliver useful gating data, OptiRhythm's frequency response captures two separate frequency ranges:

  • the very low energy range for structural and heart sounds (20-40 Hz), and
  • a high energy range portion for scanner acoustic noise (greater than 100 dB).

Manipulating these ranges using high and low pass filters makes it possible to retain separation and produce very accurate gating.

The stethoscope is attached to a patient with a simple strap and collects data effectively when worn on top of clothing. Like all Optoacoustics optical fiber sensors, OptiRhythm is completely passive and is immune to EMI/RFI.