METHOD FOR PRODUCING ULTRASONIC IMAGES OF BRAIN Russian patent published in 2005 - IPC

FIELD: medicine; medical engineering.

SUBSTANCE: method involves forming and transforming electric pulses into probing ultrasonic signals, scanning brain structure by means of multiunit transceiver transducer mounted on patient head, receiving and transforming reflected echo-signals into electrical ones and building visualization images on their basis. Adjustment piezo-transducer of aperture close to pin-hole aperture is coaxially arranged on patient head side opposite to the mounted multiunit transceiver transducer. Preliminary reception adjustment is carried out with probing pulses being produced and pulse emission as pulsating ultrasonic signal from the adjustment piezo-transducer being included. Received signal delays and phase shifts are measured on particular elements of the multiunit transceiver transducer and saved in memory. Transmission adjustment is carried out with probing pulses being produced and sequentially emitted with particular multiunit transceiver transducer elements having appropriate delays and phase shifts measured when carrying out reception adjustment; mutual differences in delays and phase shifts of signals received with adjustment transducer being measured and saved. The differences are introduced as adjustments when scanning brain structures.

EFFECT: high resolution and quality of produced ultrasonic images; high reliability and objectiveness in studying brain state.

4 cl, 2 dwg