Cerebrotech Visor for strokes

1.What is it?

A non-invasive, portable and wireless device which measures real-time brain fluid distribution to help triage severe strokes for endovascular therapy within the 24 hours timeframe.

This device has been FDA approved and uses the Volumetric Impedance Phase-shift Spectroscopy (VIPS) technique for imaging.

2. Why is it important?

Early diagnosis of a severe stroke or an Emergent Large Vessel Occlusion (ELVO) could lead to earlier intervention which leads itself to better patient outcomes and reduced hospital costs in the long term. for example, ELVO patients eligible for thrombectomy would be more likely to receive treatment if there are fewer triaging delays.

According to the VITAL cohort study conducted in the US which recruited 252 subjects with an average age of 62 and 45% male. The Cerebrotech Visor can detect severe strokes with 93% sensitivity (95% CI 83 to 98) and 87% specificity (95% CI 81 to 92).

This is a device which can be implemented in ambulances to help paramedics decipher a high risk patient who required interventional treatment in record time. Hence, this can also be incorporated in community nursing homes, cardiothoracic surgical theatres, cruise ships, aeroplanes as well as less economically developed countries with minimal neuroimaging facilities.

In terms of costs, it is difficult to ascertain total costs incurred due to the various complications that lead to and are a result of a stroke. However, there are around 2,000 patients per year who are eligible for thrombolysis but do not receive the treatment which could save the NHS £8.2 million over 5 years which could potentially be actioned by the use of Cerebrotech Visor.

3. How does it work?

  • place the device on the patient’s head, resting on their ears and forehead
  • the device will communicate with the connected laptop via bluetooth
  • activate the device from the laptop
  • a reading is taken within 5 seconds, 3 readings are taken and the combined average will be displayed within 30 seconds
  • instructions will alert the operator if the device has been poorly positioned to readjust the device for the readings to occur
  • the method involved electromagnetic radio waves which travel from 2 radio transmitters implanted in the headpiece
  • The radiowaves travel through the brain and change frequency when passing through fluids which are reflected back through to the device
  • the fluid difference is calculated for each lobe of the brain which is vital as many neurological conditions cause a fluid difference in the right or left side of the brain
  • a neurologist is currently required to confirm a diagnosis of minor or major stroke
  • however, VITAL 2.0 study is underway to use a new algorithm for an independent diagnosis
  • device parameters can be changed to focus on different intracranial pathologies which could further widen applicability of the Cerebrotech Visor in the future

References

Except from the leading graphic, all other images used in this article belong to Cerebrotech Medical

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