METHOD, DEVICE AND SYSTEM OF ULTRASOUND VISUALIZATION OF BRAIN STRUCTURES THROUGH THICK SKULL BONES Russian patent published in 2017 - IPC A61B8/12 

FIELD: medicine.

SUBSTANCE: method for obtaining of ultrasound images of brain structures through thick skull bones includes installation of one or more multi-element ultrasonic sensors on the patient's head, with a possibility of mechanical movement, each of these multi-element ultrasonic sensors emits pulses in the form of a spherical wave with a specified focal length in the transmitting mode in the given view sector, which are accepted by the elements of this ultrasonic sensor from at least one brain structure tissue located at a given focal length, and based on the echo signals from the ultrasonic sensor, the image of the brain tissue structure is reconstructed by Fourier-Fresnel conversion, taking into account the time delay compensation of the reflected ultrasonic signal from various thicknesses of skull bones and formation of a flat wave front. Device for ultrasonic transcranial scanning is performed as a helmet-shaped structure containing a body with at least two curved guides located at the helmet-shaped structure top with a possibility of movement. The main multielement one-dimensional or two-dimensional ultrasonic sensor, at least one radiation sensor operating in the radiation mode and positioning sensors are installed on the guides, at that, the mentioned main multielement ultrasonic sensor is located at a fixed distance L from the radiation sensor and the positioning sensors are made with a possibility of measurement of rotation angles and positions of the main ultrasonic sensor and at least one radiation sensor. The system for brain structure ultrasound visualization contains a device for ultrasonic transcranial scanning, preamplifier units (PUs), each containing a plurality of reception channels, ADC and FPGA, a multichannel amplifier, containing DAC and a computer containing at least one processor, i/o interfaces and memory associated via the interface of digital signal processing with the PUs and MA.

EFFECT: accuracy of the data obtained increases during transcranial ultrasound studies.

19 cl, 11 dwg, 1 tbl