Normal Pulse Sounds at Pen Doppler Examination

A 60-year-old smoking male had pain in the right calf, aggravated by walking. At pen Doppler examination the pulse sounds were normal. A triphasic pulse sound is audible over A. tibialis posterior: (1) high-pitched systolic forward flow, (2) short backward flow resulting from elasticity of a normal artery, and (3) slow diastolic forward flow. Only phases 1 and 2 are audible over A. dorsalis pedis. The ankle pressures were normal. In peripheral artery obstruction (video Measurement of Ankle Pressure and Abi) the flow is slower (low-pitched) and monophasic. The cause of the patient's symptom was found elsewhere: the absence of the right patellar reflex suggested lumbar disc herniation. Note: this video has a sound track. If no sound is audible, turn on the audio of your computer.

Normal Pulse Sounds at Pen Doppler Examination