Full-focus eye-ground color doppler ultrasound imaging method

An ultrasonic imaging method and imaging method technology, applied in eye examination, eye testing equipment and other directions, can solve the problems of low technical content, effective signal cannot be imaged, sound power safety is difficult to meet the task of scanning eyes, etc. safety effect

Active Publication Date: 2012-10-03
CHENGDU YOUTU TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

1. The existing high-frequency ophthalmic ultrasonography uses a single-array element mechanical sector-sweep structure with very low technical content. It cannot realize color Doppler ultrasound scanning without the ability to realize fast and flexible scan line control.
2. Traditional array ultrasound is difficult to meet the task of scanning eyes in terms of sound power safety
With such a low incident energy, the ultrasonic equipment with ordinary structure is not enough to form a detectable ultrasonic echo, causing the effective signal to be overwhelmed by noise and unable to image

Method used

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  • Full-focus eye-ground color doppler ultrasound imaging method
  • Full-focus eye-ground color doppler ultrasound imaging method

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Embodiment Construction

[0017] refer to figure 1 Understand the following:

[0018] It is equivalent to the traditional ultrasonic multiple array elements 1 transmitting simultaneously to generate a single beam with strong energy. The main feature of this technology is that it uses a small aperture for transmission. At the same time, multiple receiving beams 2 are formed around the small aperture for transmission, such as 128 arrays. elements, and the linear density between array elements is 2, a maximum of 256 receiving beams 2 can be formed. If the aperture is as small as a single array element, each image needs to be transmitted 128 times. Usually 64 receiving beams 2 are enough. If each emission forms 64 lines, and each frame emits 128 times, then a total of 128x64 lines are generated, or marked as B(m, n), where m=0~127, marking the emission sequence of the beam in the image, n= 0~63, mark the spatial position where the beam is accepted.

[0019] Like ordinary ultrasound imaging, each frame ...

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Abstract

The invention discloses a full-focus eye-ground color doppler ultrasound imaging method. The method comprises the following steps: using an ultrasonic host system, a video output equipment, an ultrasonic energy converter, a transmitting unit on the ultrasonic energy converter, and an ultrasonic host system as singlechips for signal processing; and implementing the scanning for a frame of image of the eye-grounds according to the following steps: transmitting the ultrasonic signals by the ultrasonic energy converting probe in a manner of spherical-wave transmission from one side to the other side, receiving any received wave beam formed at the periphery of each spherical wave, feeding back the information of the received wave beams to the ultrasonic host system, overlapping the received wave beams by the ultrasonic host system when the former and later spherical waves are transmitted, and obtaining a frame of the image after scanning one frame, wherein the image comprises multiple received wave beams which are overlapped for many times, and the received wave beams are used for the normal imaging process and finally displayed on the video output equipment. The imaging method can realize the ultrasonic scanning through the sound power which is 1 / 64-1 / 128 of that of traditional ultrasound so as to ensure the eye scanning safety.

Description

technical field [0001] The invention relates to a medical diagnostic instrument, which is further described as a fundus color ultrasound imaging method. Background technique [0002] The eye is one of the most delicate and complex organs in the human body. It is self-evident that eye diseases, especially the damage and loss of vision, bring suffering to patients, and the loss to the national economy is also huge. Eye diseases include not only diseases of the optical system in the eye (cornea, iris, lens, vitreous body, etc.), but also diseases that may occur in the orbital fundus (retina, optic nerve, vascular network, fundus tumors, etc.). Existing clinical imaging methods have very limited diagnostic capabilities for the fundus, and the probability of causing secondary damage to the fundus is relatively high. For example: the existing ultra-high frequency ophthalmic ultrasound is all black and white ultrasound for the intraocular optical system. This type of ultrasound ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/10
Inventor 田睦熊佑全
Owner CHENGDU YOUTU TECH
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