A multi-dimensional imaging system of blood flow information based on ultrasound

Abstract

The invention relates to the field of ultrasonic imaging, in particular to a blood flow information multi-dimensional imaging system based on ultrasound. According to the blood flow information multi-dimensional imaging system provided by the invention, acquired IQ signals are subjected to sub-sampling and dividing by virtue of N sub-sampling windows which cover the full-depth range of blood vessels, and furthermore, the IQ signals in each of the sub-sampling windows undergo such operations as time domain combination, frequency domain conversion and the like, so that blood flow velocity information of various parts in the full-depth range of the blood vessels is obtained, and the shortcomings of conventional D-mode imaging that doctors need to continuously move the sub-sampling windows and the parts, only located within the sub-sampling windows, of the blood vessels can be detected are overcome; and with the application of the imaging system which can simultaneously sample the sub-windows within the full-depth range of the blood vessels so as to acquire the blood flow information of various positions within the full-depth range of the blood vessels, a user can chose to simultaneously view the blood flow information distribution of the entire blood vessels or to view the blood flow information on any depth moment or within any time period of the blood vessels, so that detection time is shortened, a detection efficiency is improved and a detection difficulty is reduced.

Description

technical field [0001] The invention relates to the field of ultrasound imaging, in particular to an ultrasound-based multidimensional imaging system for blood flow information. Background technique [0002] In traditional ultrasound blood diagnosis, doctors usually use ultrasound B-mode imaging results or D-mode imaging (also known as pulse wave Doppler spectral imaging) results to diagnose diseases, but because many blood flow diseases cannot be observed by B-mode imaging (such as vascular sclerosis and early diseases of the vessel wall), so D-mode imaging has been more and more widely used; however, due to technical limitations, most of the existing D-mode imaging only contains 1 sub-sampling window, and the range of the sub-sampling window Very small (in D mode, only the blood flow velocity information in the sub-sampling window can be observed), the doctor needs to constantly move the sub-sampling window to observe the blood flow information at different depths and diff...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem of low detection efficiency caused by only one sub-sampling window in the existing D-mode imaging (pulse wave Doppler spectral imaging) technology, and to provide a method that includes full-depth information of blood vessels. Blood flow information imaging system with multiple sub-sampling windows

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