👉 Tachygraphy is a technique used in medical diagnostics to measure blood flow to specific points on the body. It involves measuring the speed and direction of blood flow through a small tube, known as a tachograph, which is attached to the patient's arm or leg. The tachograph records the amount of blood flowing into and out of the area being measured, which can then be used to determine the patient's overall blood flow rate. This technique has been used in various medical settings
