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
em Zh
| WPRIM
| ID: wpr-266658
Biblioteca responsável:
WPRO
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.
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Algoritmos
/
Sistemas Computacionais
/
Software
/
Hemorragia Cerebral
/
Diagnóstico
/
Magnetismo
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
Zh
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2015
Tipo de documento:
Article