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[CO2 angiography: measuring blood flow with injected gas bubbles]
H Pott1, T Schmitz-Rode, J H Besgen
1Institut für hydraulische und pneumatische Antriebe und Steuerungen der RWTH Aachen.
Biomedizinische Technik. Biomedical Engineering
|November 1, 1992
Summary
Carbon dioxide (CO2) gas is now easier to use for visualizing blood vessels. New research shows CO2 can also diagnose blood flow issues, moving beyond just imaging vessel structure.
Area of Science:
- Medical Imaging
- Biomedical Engineering
- Fluid Dynamics
Context:
- Mechanical injection of carbon dioxide (CO2) gas has improved its use as a contrast medium for blood vessel visualization.
- The development of a gas metering device is crucial for precise CO2 delivery.
- Previous applications focused primarily on morphological imaging.
Purpose:
- To explore the potential of CO2 gas beyond visualizing blood vessel morphology.
- To evaluate the diagnostic capability of CO2 for assessing haemodynamics within blood vessels.
- To investigate the behavior of injected CO2 gas bubbles in vitro and in vivo.
Summary:
- In vitro experiments using an artery simulation model were conducted to analyze the behavior of injected CO2 gas bubbles.
- The study examined how CO2 gas interacts within simulated arterial environments.
- Findings from the in vitro phase were subsequently applied to animal experiments.
Impact:
- This research expands the application of CO2 gas in medical diagnostics.
- It paves the way for using CO2 for both structural and functional vascular assessments.
- The findings contribute to the advancement of minimally invasive diagnostic techniques.