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Transcranial three-dimensional cerebrovascular imaging method and system

An imaging method and cerebrovascular technology, applied in IT and medical fields, can solve the problems of limited clinical application, unsuitable for multiple detections, and radiation, so as to improve the definition and detection rate, realize three-dimensional scanning and long-term The effect of monitoring and low frequency

Inactive Publication Date: 2018-11-23
SHENZHEN DELICA MEDICAL EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

DSA is the gold standard for the detection of cerebrovascular lesions. CTA is more commonly used, but it is irradiated, invasive, and requires contrast agents. It is not suitable for multiple detections, and there is no hemodynamic data. The clinical application is limited and the cost is high. Continuous monitoring, efficacy evaluation and regular follow-up of stroke patients

Method used

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  • Transcranial three-dimensional cerebrovascular imaging method and system
  • Transcranial three-dimensional cerebrovascular imaging method and system
  • Transcranial three-dimensional cerebrovascular imaging method and system

Examples

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Embodiment 1

[0021] The application provides a transcranial three-dimensional cerebral angiography method, such as figure 1 As shown, the method includes:

[0022] S10. Using the circular array probe controlled by the mechanical device to perform focused ultrasonic scanning of the intracranial, and receive echo signals from each scanning position.

[0023] Specifically, the ring array probe controlled by the mechanical device may include a mechanical device and a ring array transducer, the mechanical device is used to drive the mechanical structure of the ring array probe to swing, and the ring array transducer is used to The focused ultrasonic signal is transmitted internally, and the probe that receives the echo signal of the ultrasonic signal is focused. In this embodiment, the ring array transducer includes several element chips arranged in concentric circles, and the area of ​​each element chip is equal. For example, the ring array transducer includes five array element chips, which...

Embodiment 2

[0054] This embodiment provides a transcranial three-dimensional cerebrovascular imaging method. This implementation is the same as the imaging process in Embodiment 1. The difference lies in the acquisition process of the echo data of each scanning position by the circular array probe, so that the circular array probe here The acquisition process of the echo data of each scanning position by the array probe is described in detail. The ring array probe data acquisition process may specifically include:

[0055] A. Adjust the probe angle and scanning depth according to the preset swing trajectory, and send multi-beam focused ultrasonic signals to the intracranial at the scanning position, respectively receive the echo signals of the multi-beam ultrasonic signals and record the echo signals of the scanning position and each scanning depth ;

[0056] B. Send multiple beams of ultrasonic signals at the scanning position and receive echo signals of multiple ultrasonic signals, and...

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Abstract

The invention discloses a transcranial three-dimensional cerebrovascular imaging method and system. The method comprises the steps that firstly, an annular array probe capable of performing automaticscanning is utilized to send ultrasonic signals with different time delays to intracranial different scanning positions, so that the ultrasonic signals with the different time delays are focused on several preset depths of the beam axial direction to detect the intracranial cerebral vessels through the focused ultrasonic signals and perform digital delay focusing on echo signals of the ultrasonicsignals, the echo signals are enhanced to improve the spatial form, positional accuracy and signal strength of acquired cerebral vessels and / or cerebral blood flow information, thereby improving the definition and detection rate of three-dimensional cerebral vessels and / or cerebral blood flow images. In addition, the annular array probe has the characteristics of fewer channels and small size, andcan replace a TCD monitoring probe to be worn on the head, thereby being capable of achieving three-dimensional scanning and monitoring of the intracranial cerebral vessels.

Description

technical field [0001] The invention relates to the fields of IT and medical technology, in particular to a method and system for transcranial three-dimensional cerebrovascular imaging. Background technique [0002] Stroke is the number one cause of death in China. There is an urgent and huge need to use safe and effective equipment to diagnose patients with cerebrovascular diseases and to screen high-risk groups for stroke. The existing color Doppler ultrasound diagnostic equipment (TCCD) has clear and high-resolution diagnostic images of intracranial blood vessels, but due to the huge attenuation of the skull to ultrasound, the detection rate is low, the operation is difficult, and it is dependent on personnel or equipment powerful. Ultrasound transcranial Doppler (TCD) has a high detection rate, but there is no two-dimensional image, and the operation is blind typing, which is highly dependent on personnel. DSA is the gold standard for the detection of cerebrovascular ...

Claims

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Application Information

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IPC IPC(8): A61B8/06
CPCA61B8/06A61B8/5207A61B8/5215
Inventor 邢英琦杨弋郑永平吴伟文任冠清邹文肖振华
Owner SHENZHEN DELICA MEDICAL EQUIP CO LTD
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