Vascular Echography (Vessel Imaging) - 09.02.15
Vascular Echography (Vessel Imaging) evaluates the changes in central and peripheral blood vessel wall properties (thickness and compliance) and cross sectional areas of long-duration ISS crewmembers during and after long-term exposure to microgravity. Science Results for Everyone
Information Pending Experiment Details
OpNom: Vessel Imaging
Philippe Arbeille, Universite Francois-Rabelais, Tours, France
Richard Lee Hughson, Ph.D., University of Waterloo, Waterloo, Ontario, Canada
Joel Kevin Shoemaker, Ph.D., University of Western Ontario, London, Ontario, Canada
Dag Linnarsson, Karolinska Institute, Stockholm, Sweden
Pierre Denise, University of Caen Basse Normandie, Caen, France
Sponsoring Space Agency
European Space Agency (ESA)
ISS Expedition Duration 1
March 2010 - March 2011; September 2011 - September 2013
Previous ISS Missions
- A Lower Body Negative Pressure (LBNP) program will be run in parallel to Vessel Imaging.
- Flow velocity changes in the aorta and the middle cerebral and femoral arteries will be used to quantify the cardiovascular response to fluid shift.
- Vessel Imaging aims to optimize the countermeasures used routinely during long-duration space missions.
By improving the understanding of the mechanisms behind changes to the cardiovascular system in space we in turn can develop more effective countermeasures, whether pharmacological, dietary or exercise-based in order to alleviate such adverse effects and hence improve/maintain the health and performance of astronauts working and living in orbit.
In response to gravitational stress and exercise, human blood vessel diameters change. After spaceflight it seems that vessels that normally should contract to maintain blood pressure do not perform as well as they did before the (long duration) space flight. This research holds significance to similar conditions on earth as they are the same processes that occur in elderly patients. As such findings from this experiment will help in improving and maintaining the health and well-being of an elderly population and provide insight into other cardiovascular conditions on earth that encompass a similar impaired cardiovascular function.
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Arbeille P, Provost R, Zuj K, Vincent N. Measurements of jugular, portal, femoral, and calf vein cross-sectional area for the assessment of venous blood redistribution with long duration spaceflight (Vessel Imaging Experiment). European Journal of Applied Physiology. 2015 May 20; epub. DOI: 10.1007/s00421-015-3189-6. PMID: 25991027.
Ground Based Results Publications