DIAGNOSTIC TECHNIQUE FOR VERTEBRAL ARTERY IRRITATION

摘要

FIELD: medicine.SUBSTANCE: colour Duplex ultrasonography of the vertebral artery is performed. The vertebral artery is imaged in the third and fourth segments. A time-average blood peak flow in the third segment TAMXvand a time-average blood peak flow in the fourth segment TAMXvare determined. An irritation coefficient Cis determined by formula: C=TAMXv:TAMXv. If the value Cis equal to 0.75 and less, the pronounced irritation is diagnosed, while the value falling within the range of 0.76 to 1.09 shows the moderate irritation, and the irritation is diagnosed to be absent if observing the value falling within the range of 1.1 and more.EFFECT: technique enables providing greater reliability and accuracy by the qualitative assessment of the irritation.2 ex