In addition, in cases of subclavian steal from the vertebral artery, there is a graded system showing a progressive change in the ipsilateral vertebral artery waveform. Grade I lesions demonstrate ...

The vertebral artery is divided into four segments (V1–V4; Figure 1). The V1 segment originates at the subclavian artery and extends to the transverse foramina of either the fifth or sixth ...

Subclavian Steal Syndrome (SSS ... which can lead to reversed blood flow in the vertebral artery. This reversal occurs as the body attempts to compensate for reduced blood flow to the arm ...

Arteries can be found in every part of the body (except the hairs ... the axillary artery, the subclavian arteries branch into the internal thoracic artery, vertebral artery, costocervical ...