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Real-time navigation method and system for ultrasonic transducer

A technology of an ultrasonic transducer and a navigation system, which is applied in the field of real-time navigation methods and systems of ultrasonic transducers, can solve problems such as offset and neglect, and achieve the effect of convenient expansion.

Active Publication Date: 2019-08-23
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these infrared optical navigation systems used for transcranial magnetic stimulation do not take into account the influence of brain tissues such as the skull on the sound field, and it is difficult to avoid the shift of the focal area of ​​the transcranial sound field caused by the skull (compared to the case without the skull) , it is difficult to achieve high spatial precision navigation for TUS

Method used

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  • Real-time navigation method and system for ultrasonic transducer
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  • Real-time navigation method and system for ultrasonic transducer

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Embodiment Construction

[0033] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solutions claimed in the claims of the present application can also be realized.

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0035] Some concepts explained:

[0036] TUS, Transcranial Ultrasound Stimulation, Transcranial Ultrasound Stimulation, refers to the stimulation of intracranial brain tissue by ultrasonic waves emitted by focused ultrasonic transducers or planar ultrasonic transducers passing through the scalp and skull

[0037] MRI, Magnetic Resonance Ima...

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Abstract

The application discloses a real-time navigation method and system for an ultrasonic transducer. The navigation method comprises the following steps: building a sound field calculation module for ultrasonic waves passing through a skull, and calculating the placing position and angle of the ultrasonic transducer based on ultrasonic time inversion symmetry; acquiring the coordinates of the ultrasonic transducer under a coordinate system of space positioning equipment, and converting the coordinates into coordinates under a coordinate system of a three-dimensional model of the head under test; and correcting the position and angle of the ultrasonic transducer in real time.

Description

technical field [0001] The invention relates to the technical field of transcranial ultrasound stimulation nerve regulation, and in particular to a real-time navigation method and system of an ultrasound transducer. Background technique [0002] Several neuromodulation techniques have been developed over the past few decades, such as methods such as transcranial magnetic stimulation (TMS), transcranial ultrasound stimulation (TUS), deep brain stimulation (DBS), and transcranial direct current stimulation (TDCS) . These neuromodulation technologies implement the detection of brain function or the treatment of brain diseases by applying specific patterns of physical stimulation to specific parts of the brain. Among them, transcranial ultrasound stimulation (TUS) uses low-frequency and low-intensity pulsed focused ultrasound to penetrate the skin, skull and other head tissues, focusing on a small intracranial area to achieve Modulation (enhancement or inhibition) of neural ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00A61N7/00G06T17/00G16H30/20
CPCA61N7/00G01C21/00G06T17/00G06T2207/10081G16H30/20
Inventor 孙俊峰施政恺刘凯童善保
Owner SHANGHAI JIAO TONG UNIV