| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Outline of Final Research Achievements |
Recently, it is said that there is the relationship between human’s venous compliance, which corresponds to the ability of veins to stretch, and venous thrombosis. Conventional strain-gauge plethysmograph (SPG) often suffers from errors due to limb movement. Thus, we proposed the non-contact and non-invasive imaging of venous compliance using RGB camera and, from the resulting images, observed the spatial distribution of venous compliance, which correlates with the distribution of veins.
Pulse wave velocity (PWV) has been used as the evaluation index of arteriosclerosis and is on the order of m/s. Currently, tonometry is the conventional methods to measure PWV. However, The direction or pressing force of tonometry sensor affects the measurement of pulse wave. Therefore, the non-contact measurement system based on digital color images of human skin was proposed. The PWV measured using the proposed system is in the order of m/s. The results demonstrate the feasibility of this method.
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