Abstract
Examination of echography greatly depends on an operator's expertise and experience. So, Diagnosis and treatment support system is necessary to reduce the doctor's load. Although we had so far developed the diagnosis and treatment support system for echography, the method of evaluating this system quantitatively was not established. On the other hand, although there is much research about measurement of tiredness or stress, there is no research applied to echography. In this paper, we have constructed the diagnostic support system for echography based on a biological signal. First, we have measured electromyograms of wrists and waists of the experimenters at ultrasound probe scanning. Next, we also measured the effect of posture of the experimenter and how to grasp the probe to the body surface. We have analyzed strain of physical base on time-variable average frequency (MNF) of EMG on each condition, and discussed those relations from each time change and correlation chart of MNF. As a result, we have found that it is possible to reduce a physical fatigue of echography by considering the tips of the posture and the probe scan.
