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A camera-type diameter gauge applicable to small blood and lymph vessels
Pflugers Archiv : European Journal of Physiology
|December 1, 1980
Summary
A novel camera-based diameter gauge precisely measures tiny blood and lymph vessels. This innovative tool allows for simultaneous measurements of two vessels, advancing physiological research.
Area of Science:
- Physiological measurement
- Biomedical engineering
- Microcirculation research
Background:
- Accurate measurement of small vessel diameters is crucial for understanding physiological processes.
- Existing methods may lack precision or the ability for simultaneous measurements.
Purpose of the Study:
- To develop and validate a camera-type diameter gauge for precise physiological measurements.
- To enable simultaneous diameter measurements of multiple small vessels.
Main Methods:
- A camera-type diameter gauge was constructed using a single-lens reflex camera with extension tubes and an image sensor.
- The gauge was designed to measure outer diameters of blood and lymph vessels.
- Simultaneous measurements were achieved using independent window signals within video scans.
Main Results:
- The gauge can measure outer diameters of vessels as small as 100 micrometers.
- Diameter changes as small as 12 micrometers can be distinguished.
- Simultaneous measurement of two different vessels is feasible.
Conclusions:
- The developed camera-type diameter gauge offers high precision for measuring small vessel diameters.
- The ability for simultaneous measurements enhances its utility in complex physiological studies.
- This tool has potential applications in microcirculation research and diagnostics.