IPG and OIP waveforms recorded from a patient (RS-37/F) with deep vein thrombosis in the left leg. Values of IPG parameters in this patient are as shown below. The value of BFI (ele) in the left leg is significantly decreased with significant increase in the value of CVS. These observations are suggestive of deep vein thrombosis in the left leg. OIP in this patient shows decreased MVO in the left leg and corroborates IPG observations. The venogram in this patient is shown in Fig. 2.