Development of a handheld blood flow measurement system using laser speckle flowgraphy

A new handheld blood flow measurement system using laser speckle flowgraphy was developed for easy measurement of blood flow. The developed system features a small display unit that allows measurement results to be viewed without a PC. The system is miniaturized, integrated with a microcontroller, a line sensor, and a laser unit. Our experiment was carried out to confirm the usefulness of the developed system to measure the blood flow variation.