A Non-Invasive Detection and Monitoring of Intracranial Pressure Using Ultrasound Sensors

Derek Kwaku Pobi Asiedu, Kyoung-Jae Lee

Abstract


Background: Intracranial pressure (ICP) measurement is an extremely important part of the neurosurgical healthcare. Existing methods used for monitoring ICP are mainly grouped into invasive and non-invasive methods. Research into techniques for ICP monitoring is now gearing towards non-invasive methods to eliminate complications associated with invasive methods. The goal of this work was to propose an effective method for ICP monitoring.

Method: The work presents a model-based approach for the analysis and characterization of the proposed method. ICP waveforms and characteristics were generated from mathematical models using computer simulation and various datasets. The simulation model of the proposed ultrasound system and biological system were developed.

Results: The ICP pulse was achieved with a variance of 63.62 Pa from the reference model used. From our results, a minimum of 10 MHz with a minimum pulse width of 80 µs can be used in the development of proposed system. The cut-off frequencies for the pulse generator filter and mixed signal filter values were 40 MHz and 1 MHz respectively.

Conclusion: The present study establishes a reference model for ultrasound system-biological system interaction. The study also proposes a new approach for ICP monitoring. The ICP monitoring approach in this paper has the advantage of being a simple, non-invasive and a direct method for ICP monitoring. The model presented is an effective tool in the field of research, coursework and presentations. The introduced device satisfies both the needs of the patients and that of the health personnel.




J Neurol Res. 2015;5(1-2):167-180
doi: http://dx.doi.org/10.14740/jnr322w



Keywords


Intracranial pressure; Non-invasive; Monitoring; Ultrasound technique; Human neck region

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