Why the study?
Do directional doppler ultrasound techniques provide a safe and atraumatic method of assessing patients with symptoms of extracranial occlusive arterial disease compared to direct percutaneous carotid angiography and arch aortography?
Do directional doppler ultrasound techniques provide a safe and atraumatic method of assessing patients with symptoms of extracranial occlusive arterial disease compared to direct percutaneous carotid angiography and arch aortography?
Directional Doppler ultrasound provides a safe, non-invasive alternative to angiography for assessing extracranial occlusive arterial disease.
May support non-invasive assessment of extracranial disease; leaves open validation against angiography in prospective studies.
Three diagnostic techniques based on the use of directional doppler ultrasound have been evaluated in comparison with direct percutaneous carotid angiography and arch aortography. The results indicate that the non-invasive techniques provide a safe, atraumatic method of assessing patients with symptoms of extracranial occlusive arterial disease.
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Prichard et al. (1979) studied this question.
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