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Constitution of a Real-time Monitoring System of Cerebral Hemorrhage with Magnetic Induction / 生物医学工程学杂志
Journal of Biomedical Engineering ; (6): 440-445, 2015.
Article in Chinese | WPRIM | ID: wpr-266658
ABSTRACT
The real-time monitoring of cerebral hemorrhage can reduce its disability and fatality rates greatly. On the basis of magnetic induction phase shift, we in this study used filter and amplifier hardware module, NI-PXI data-acquisition system and LabVIEW software to set up an experiment system. We used Band-pass sample method and correlation phase demodulation algorithm in the system. In order to test and evaluate the performance of the system, we carried out saline simulation experiments of brain hemorrhage. We also carried out rabbit cerebral hemorrhage experiments. The results of both saline simulation and animal experiments suggested that our monitoring system had a high phase detection precision, and it needed only about 0.030 4s to finish a single phase shift measurement, and the change of phase shift was directly proportional to the volume of saline or blood. The experimental results were consistent with theory. As a result, this system has the ability of real-time monitoring the progression of cerebral hemorrhage precisely, with many distinguished features, such as low cost, high phase detection precision, high sensitivity of response so that it has showed a good application prospect.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Algorithms / Computer Systems / Software / Cerebral Hemorrhage / Diagnosis / Magnetics Type of study: Diagnostic study Limits: Animals Language: Chinese Journal: Journal of Biomedical Engineering Year: 2015 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Algorithms / Computer Systems / Software / Cerebral Hemorrhage / Diagnosis / Magnetics Type of study: Diagnostic study Limits: Animals Language: Chinese Journal: Journal of Biomedical Engineering Year: 2015 Type: Article