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[Carbon dioxide as an irrigation medium for percutaneous angioscopy]
M Zwaan1, D Kummer-Kloess, H D Weiss
1Institut für Radiologie, Medizinischen Universität, Lübeck.
Bildgebung = Imaging
|December 1, 1993
Summary
Carbon dioxide (CO2) angioscopy offers a bloodless view for percutaneous transluminal angioscopy. This CO2 system provides safe and effective visualization of blood vessels.
Area of Science:
- Vascular Surgery
- Medical Imaging
- Gastroenterology
Context:
- Percutaneous transluminal angioscopy is a promising diagnostic and therapeutic tool.
- Achieving a clear, bloodless field is a major challenge in angioscopy.
- Current liquid-based methods cause issues like hypervolemia and poor visualization.
Purpose:
- To investigate a carbon dioxide (CO2) application system for angioscopy.
- To assess the system's ability to create a bloodless visual field.
- To evaluate the safety and efficacy of CO2 angioscopy.
Summary:
- A CO2 gas injection system was tested in 10 pigs undergoing angioscopy.
- CO2 was injected via a Swan-Ganz catheter with controlled pressure and time.
- Small CO2 volumes (approx. 50 cm3) effectively displaced blood, allowing clear visualization.
Impact:
- CO2 angioscopy enables safe and successful visualization of the aorta and its branches.
- Adjustable gas quantities, pressure, and injection time ensure optimal angioscopic conditions.
- The developed gas injection device reliably meets the requirements for effective CO2 angioscopy.