Doppler ultrasound exam of an arm or leg

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Doppler ultrasonography of an extremity

Overview Risks Results

Doppler ultrasound exam of an arm or leg

• The vessels show no evidence of narrowing or closure.
• The arteries have normal systolic and diastolic components.
• Blood pressure is normal.
• The ankle-to-brachial arterial blood pressure index (comparison of the pressure at the ankle to that of the brachial artery in the arm) is 0.85 or greater.

• In the veins:
  • Venous occlusion (closing of vein)
  • Blood clots
• In the arteries:
  • Arterial occlusive disease
  • Spastic arterial disease (arterial contractions brought on by cold or emotion)
  • Embolic arterial occlusion (obstruction in the artery by a blood clot, a fat globule, or an air bubble)

Additional conditions under which Doppler ultrasound may be performed include the following:

• Aortic dissection
• Arteriosclerosis of the extremities
• Coarctation of the aorta
• Deep venous thrombosis
• Stroke secondary to carotid stenosis
• Superficial thrombophlebitis
• SVC obstruction
• Thromboangiitis obliterans
• Vascular tumors of the extremities

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