Fig. 3From: Comparative study between duplex ultrasound and 160-multidetectors CT angiography in assessment of chronic lower limb ischemiaFemale patient aged 57 years, diabetic, not hypertensive, cardiac, or smoker. a Bilateral below-knee intermittent opacification. b Multiple athermanous plaques below the knee that cause stenosis but less than 50%. c Attenuated right side PTA with weak venous-like waveform. d Attenuated left side PTA with multiple athermanous plaquesBack to article page