| 摘要 |
The invention relates to medicine, in particular to paraclinical methods of diagnosis and can be used for visualization of the stenotic segment of the left subclavian artery in the left vertebral arterial steal syndrome. Summary of the invention consists in that it is carried out the colour Doppler Duplex echography with a sector gauge of 2...4 MHz with the identification of a blood flow of reverse direction at the level of the left vertebral artery, of a reduced arterial caliber and a blood flow of low resistance at the level of homolateral subclavian artery and a blood flow of collateral type at the level of homolateral brachial artery, then the gauge is applied to the left supraclavicular region and is rotated the gauge indicator toward the left shoulder in the lower-posterior direction, there are performed rotatory movements with a scanning plane of 30...60? with the axis of the neck up to the visualization of the mouth of the common left carotid artery and left subclavian artery with the stenotic segment.
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