the method is selective for the diagnosis of recent deep venous thrombosis : 83 % correlation between impedance and phlebography , 16 % false positive and 1 % false negative , reliability at the level of the thigh in 98 % of cases , lesser reliability in the calf though the score can be improved and touch 94 % by comparison of the two legs ( franco ) .
C0039866
thigh
C1140621
legs