Wide-field photoacoustic and ultrasonic mammary coronal plane scanning and imaging device and method based on 1024 linear array detection
A technology of scanning imaging and coronal plane, applied in the directions of ultrasound/sonic/infrasonic image/data processing, ultrasound/sonic/infrasonic Permian technology, diagnostic recording/measurement, etc. Difficult, complex process and other issues, to achieve the effect of ensuring repeatability and consistency, avoiding two-dimensional motor scanning, and high penetration depth
Active Publication Date: 2018-01-23
SOUTH CHINA NORMAL UNIVERSITY
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Although the bowl-type photoacoustic imaging scanner mentioned in the patent No. CN 102512202 A "Bowl-type photoacoustic breast imaging scanning and its scanning method" can quickly scan and image the breast, it cannot be compared with the existing B-type ultrasonic imaging device and The data processing system combines, compares and matches, and the process is complex, requiring additional customization of the device and control system of the bowl scanner, which is not conducive to processing production and manufacturing
At the same time, the resolution of the fault direction cannot be obtained.
The photoacoustic imaging system mentioned in the patent number CN 102573621 A needs to attach multiple optical fibers to the ultrasonic sensor, which is difficult to realize
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[0042] combine figure 1 As shown, the wide-field photoacoustic ultrasound breast coronal scanning imaging device based on 1024 linear array detection of the present invention includes a light source excitation system 1, an ultrasound and echo receiving system 2, a 1024 linear array detection system 3, a control system 4, a coronal Surface scanning system 5, processing system 6, image reconstruction display system 7.
[0043] combine figure 2 As shown, the 1024 linear array detection system and the coronal plane scanning system of the present invention include a mechanical arm 8, a packaging shell 9 of PS material, a one-dimensional motor 10, a 1024 array element linear array probe 11, a cylindrical lens 12, and a collimator And homogenizer 13, multimode fiber 14. The manipulator connects the package shell of PS material and the one-dimensional motor to fix the starting position, and the collimator, homogenizer and multimode fiber are connected coaxially in sequence to coupl...
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The invention discloses a wide-field photoacoustic and ultrasonic mammary coronal plane scanning and imaging device and method based on 1024 linear array detection. The device comprises a light sourceexciting system, a 1024 linear array detection system, an ultrasonic and echo receiving system, a processing system, a control system, an image rebuilding and displaying system and a coronal plane scanning system. The light source exciting system is coupled with the 1024 linear array detection system through a multimode optical fiber, a collimator and an equalizer. In the device, the photoacoustic and ultrasonic double-mode imaging technology is applied in the mammary coronal plane scanning and imaging, a super large probe with 1024 array elements is matched with the motor for scanning, it isachieved that a wide-field mammary coronal plane is subjected to scanning, imaging and photoacoustic confocal scanning of different depths, and the high resolution and the high contrast of an image are ensured.
Description
technical field [0001] The invention belongs to the field of imaging technology, in particular to a wide-field photoacoustic ultrasound mammary gland coronal plane scanning imaging device and method based on 1024 linear array detection. Background technique [0002] Photoacoustic imaging technology refers to that the light-absorbing medium irradiated by short-pulse light (pulse width < microseconds) rapidly heats up and expands after absorbing light energy. Since the irradiation time is much shorter than the heat conduction time inside the irradiated medium, instantaneous thermal expansion results. Ultrasonic signals (called photoacoustic signals) are stimulated. The ultrasonic sensor is used to receive the photoacoustic signal stimulated by the medium, and the image is reconstructed through a certain calculation algorithm, which can invert the distribution of light absorption inside the tissue. functional imaging techniques. [0003] As a common disease and frequently-...
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IPC IPC(8): A61B5/00A61B8/08
Inventor 杨思华章伟成刘瑞桉邢达
Owner SOUTH CHINA NORMAL UNIVERSITY