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Dual Focusing Ultrasound Probe and Sparse Array Photoacoustic Tomography System

An imaging system and photoacoustic tomography technology, applied in ultrasonic/sonic/infrasonic diagnosis, sonic diagnosis, infrasonic diagnosis, etc., can solve the problems of high cost, low imaging speed, poor imaging quality, etc. Image quality, cost reduction effect

Active Publication Date: 2018-08-14
QUFU NORMAL UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the existing photoacoustic imaging system has high cost, low imaging speed and poor imaging quality under low data acquisition rate

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  • Dual Focusing Ultrasound Probe and Sparse Array Photoacoustic Tomography System
  • Dual Focusing Ultrasound Probe and Sparse Array Photoacoustic Tomography System
  • Dual Focusing Ultrasound Probe and Sparse Array Photoacoustic Tomography System

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Embodiment Construction

[0037] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0039] In a first aspect, the present invention provides a dual-focus ultrasound probe, such as figure 1 As shown, the probe includes a concave detection surface 11, the numerical aperture of the co...

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Abstract

A double-focusing ultrasonic probe (1) and a sparse array photo-acoustic tomography system. The probe (1) comprises a recessed detection face (11), and a numerical aperture of the recessed detection face (11) in a first direction (13) is greater than that in a second direction (12), so that a signal receiving angle of the recessed detection face (11) in the first direction (13) is greater than that in the second direction (12), and the length of a focused area of the recessed detection face (11) in the second direction (12) is greater than that in the first direction (13), wherein the first direction (13) is perpendicular to the second direction (12).

Description

technical field [0001] The invention relates to the technical field of photoacoustic imaging, in particular to a dual-focus ultrasonic probe and a sparse array photoacoustic tomography system. Background technique [0002] Photoacoustic imaging is an emerging non-destructive, in vivo biomedical imaging method in the world. It combines the advantages of both optical and ultrasonic imaging modes, and has the high contrast and spectral specificity of optical imaging. Imaging with high spatial resolution has become one of the fastest growing biomedical imaging techniques. The basic principle of the photoacoustic imaging method is to invert the deposition of light energy in the tissue by detecting the ultrasonic signal generated by the instantaneous thermal expansion after the tissue absorbs the pulsed laser. This imaging method can rely on the light absorption contrast of the tissue itself without any exogenous contrast agent to realize the imaging of some important physiologic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00A61B8/00
CPCA61B5/00A61B8/00
Inventor 孟静宋亮孙明健林日强禹继国
Owner QUFU NORMAL UNIV
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