2020 Volume Annual58 Issue Abstract Pages 458
In the leg vein valve disorder makes deep vein thrombosis, sometimes pulmonary embolism. Therefore, we evaluated the character of the leg vein using bio-impedance. By Foster and the study of Schwan et al., the electric conductivity of the blood is known to be bigger than adipose tissue. The electric current can measure the change of the local blood volume and tissue structure by bio impedance method. The range of frequency of bio-impedance changes between 100~1000Hz. So we decide the 1kHz frequency for measuring of bio-impedance of leg. We attached an electrode on a great saphenous vein, to evaluate leg vein changed by the height of leg. When the change in bio-impedance by raising the leg, the bio-impedance of leg was lower than previous position.
