Camber surface wave transmission and bidirectional reception focusing ultrasonic imaging new method

Abstract

The invention discloses a camber surface wave transmission and bidirectional reception focusing ultrasonic imaging new method, which aims to overcome the defects of slow speed, large transmitting dosage and low resolution of the conventional ultrasonic imaging, eliminates the problem of thickness artifact generally exiting in the conventional ultrasonic imaging and belongs to a technical breakthrough in the field of medical ultrasonic imaging. The technical core is that camber surface wave is transmitted in the lateral direction by using an electronic phased array matrix probe by controlling time delay of ultrasonic wave transmitted by each array element, and meanwhile, transmission focusing is performed in the thickness direction, so that a focusing region is positioned at a part which is 1 / 2 the maximum investigation depth; after transmission, dynamic reception focusing in lateral direction and thickness direction is performed on each determined sound wave of a pixel back-scatter probe on a camber surface in the thickness direction from shallow to deep respectively; and pixel information of each layer is acquired and stored for imaging. Through the method, the defects of the conventional ultrasonic imaging can be overcome, the thickness artifact is eliminated, the quality of two-dimensional ultrasonic imaging is greatly improved, and important theoretical significance and practical significance are realized.

Description

Technical field [0001] The patent of the invention relates to a new medical ultrasound imaging method, the purpose of which is to break through the bottleneck of traditional ultrasound imaging, eliminate thickness artifacts, and greatly improve image quality. The invention patent belongs to an important technological breakthrough in the field of medical ultrasound imaging. Background technique [0002] Medical ultrasound imaging technology refers to the use of ultrasonic energy emitted to human tissue, according to the sound energy information scattered back to the probe inside the human tissue, to extract the section or three-dimensional structure image of the internal organs of the human body, which provides extremely important information for clinical diagnosis and treatment of diseases and medical research. Human anatomy and function information. At present, ultrasound imaging technology has become an indispensable and important part of modern medical imaging, and has b...

AI Technical Summary

Problems solved by technology

However, the traditional ultrasound imaging technology still has many defects, and it is far from meeting the needs of clinical diagnosis and medical scientific research.

For example, the ultrasonic imaging technology of the traditional single-point image information acquisition method has low temporal and spatial resolution, and the emitted ultrasonic dose is relatively large, etc.

In addition, the problem of thickness artifacts (ie volume effect) of traditional ultrasound has always existed

However, even so, until now, there is no ultrasound imaging technique that can completely eliminate thickness artifacts worldwide

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