Development of a portable stroke detector based on microwave tomography
Stroke is one of the major threats to life and health of Chinese residents.Existing detection methods such as CT and MRI suffer from problems such as inability to move the patient during the detection process,large size of the equipment,and long detection time,which often result in patients not being able to receive timely treatment in the critical"golden three hours".To address this problem,this research developed a portable stroke detector using microwave imaging technology.The hardware part includes a front-end head-envelope antenna array for acquiring electromagnetic signals from the patient's brain,and a back-end device contains a control module,a channel switching module,and a data acquisition module.A corresponding control program and a full-featured graphical user interface were also developed to enhance the usability.The main function of this stroke detector is to collect electromagnetic signals and image the stroke region based on the inverse scattering imaging algorithm.In the experimental verification part,this study tested the stability and imaging capabilities of the instrument itself,and imaged the cranial brain filling model and human specimens.The test results show that the detector has good performance in terms of detection efficiency,system stability,imaging speed and accuracy,and has the advantages of no ionizing radiation,strong portability,fast detection speed and low cost.It can accurately and quickly identify abnormal areas in the brain and realize real-time and on-site stroke imaging detection.
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