Scientists from Sechenov University, together with colleagues from the Burdenko National Medical Research Center for Neurosurgery, have developed a device for assessing cerebral blood flow during surgical operations. They applied the principle of laser speckle contrast imaging (LSCI), the university's press service reported.
The device has been patented, tested on phantoms and laboratory animals, and the local ethics committee of the Center for Neurosurgery has approved its use on patients.
How the device works
Laser speckle contrast light radiation is directed at the patient's head, and a highly sensitive camera is installed nearby. With its help, it is possible to illuminate the blood vessels of the brain and record the movement of red blood cells.
Since the patient is fixed during the operation, the device works without interference. Blood flow is displayed on the monitor in the form of a heat map – from dark blue to red. The brighter the shade, the higher the speed of red blood cell movement.
The device has already been tested at the Burdenko National Medical Research Center for Neurosurgery. Clinical specialists say that it is simple and easy to operate. The developers hope to establish mass production of the device in the future.
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