Ultrasound on arterial studies

Neurology
A new application for ultrasound. Compared to digital subtraction angiography, results were good just using 3D color-coded duplex sonography to see where the vertebral artery originates. To assess hardening of the vertebral artery (stenosis) , investigators recommend combining with circulation tests, reports the Journal of Ultrasound in Medicine. The test saves time and doesn't require injecting the patient with iodinated contrast agents.