Ultrasonic imaging method and device

Abstract

The invention discloses an ultrasonic imaging method and a device. The method comprises a transmitting and receiving step, an echo signal processing step and a displaying step. In the transmitting and receiving step, Doppler pulses are transmitted to an object to be detected, Doppler scanning is carried out by the aid of the Doppler pulses, and echo signals are received from the object to be detected and are Doppler pulse echo signals; in the echo signal processing step, the echo signals are processed and outputted, the echo signal processing step comprises an imaging step, and the imaging step comprises a parallelly processed two-dimensional image processing step, a blood flow image processing step and a frequency spectrum image processing step; and in the displaying step, output of the echo signal processing step is displayed. A two-dimensional image, a blood flow image and a frequency spectrum image are generated in parallel by means of adopting identical scanning signals; and in an implementation mode, one or a plurality of sampling doors is arranged in the received echo signals, and frequency spectrum image signals corresponding to the sampling doors can be simultaneously obtained.

Description

technical field [0001] The present invention relates to ultrasonic imaging, in particular to an ultrasonic imaging method and device. Background technique [0002] Medical ultrasound equipment generally includes modules such as transducers (or probes), transmitting / receiving circuits, and digital signal processing. Among them, the transducer is composed of multiple array elements, and each array element has an electrical signal and an acoustic signal. Convert function. Driven by the transmitting circuit, each array element in the transducer converts electrical signals into ultrasonic waves and transmits them to human tissues. When ultrasonic waves are transmitted in human tissue, phenomena such as absorption, reflection, refraction, and scattering will occur. Part of the scattered signal will return to the transducer and be converted into an analog electrical signal again. The receiving circuit converts these received analog electrical signals into digital signals. Then t...

AI Technical Summary

Problems solved by technology

In the triplex imaging mode, when performing three different imaging on the same position, it is necessary to use different types of pulses, including B pulse, C pulse and D pulse, to scan the position in time division, and the tissues and organs of the human body are time-sharing. When changing, time-sharing scanning at the same position will cause image mismatch, so the scanning time occupied by each scanning is limited

If you want to have higher spectral quality, you must lose part of the two-dimensional and blood flow image information (usually manifested as a lower two-dimensional and blood flow image frame rate); if you need better two-dimensional and blood flow images quality, it takes a lot of time to perform two-dimensional and blood flow scanning, and the scanning time used for spectral imaging is greatly compressed, which will greatly affect the quality of spectral images (usually manifested as poor continuity or poor time resolution, etc.)

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