Related Experiment Videos
Intracranial pressure dynamics during simulated microgravity using a new noninvasive ultrasonic technique
T Ueno1, R E Ballard, L M Shuer
1Space Physiology Lab, NASA Ames Research Center, Moffett Field, CA 94035, USA.
Journal of Gravitational Physiology : a Journal of the International Society for Gravitational Physiology
|September 7, 2001
Summary
Intracranial pressure (ICP) may rise in microgravity due to fluid shifts. A new noninvasive ultrasound technique was tested to measure ICP, aiding future spaceflight research.
Area of Science:
- Aerospace Medicine
- Neuroscience
- Biomedical Engineering
Background:
- Fluid shifts toward the head in microgravity may elevate intracranial pressure (ICP).
- Elevated ICP can cause symptoms similar to space adaptation syndrome (SAS), including headache and nausea.
- Current methods for measuring ICP are invasive, posing challenges for spaceflight research.
Purpose of the Study:
- To investigate the effects of posture on intracranial pressure (ICP).
- To evaluate the feasibility of a novel noninvasive ultrasonic device for measuring ICP waveforms.
- To assess the potential of this technology for future spaceflight experiments.
Main Methods:
- Development of a new noninvasive ultrasonic technique to record ICP waveforms.
- Study design focused on understanding postural effects on ICP.
- Assessment of the device's feasibility for in-flight experiments.
Main Results:
- The study successfully demonstrated a new noninvasive ultrasonic method for ICP waveform recording.
- Initial findings support the feasibility of using this device in microgravity environments.
- Postural effects on ICP were investigated, providing baseline data.
Conclusions:
- The developed noninvasive ultrasonic technique offers a promising alternative for ICP monitoring.
- This technology could enable crucial research into ICP changes during spaceflight.
- Further validation is needed to confirm its efficacy in microgravity for understanding space adaptation syndrome.