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<bold>Figure 2.53.</bold> Schematic drawing of the blood flow in the vertebral and basilar arteries, as well in the circle of Willis, where the left proximal subclavian artery is occluded. In some individuals the blockage of the left subclavian artery causes a "subclavian steal syndrome" with neurologic symptoms. Note the direction of blood flow indicated by the arrows. Similar situation may be encountered with occlusion of the right subclavian artery and reversal of flow in the right vertebral a...
<bold>Figure 2.53.</bold> Schematic drawing of the blood flow in the vertebral and basilar arteries, as well in the circle of ...
Figure 18-24 <bold>RIGHT-SIDED SUBCLAVIAN STEAL SYNDROME. A. Initial Digital-Subtraction Angiogram, Right Subclavian.</bold> Observe the focal stenosis (<italic>arrow</bold>) with post stenotic dilatation (<italic>arrowhead</bold>) of the subclavian (SC) artery. Note the lack of vertebral artery opacification compared with the normal common carotid artery (C). There is coexistent stenosis at the origin of the internal carotid artery (<italic>crossed arrow</bold>). <b>B. Delayed 15-SecDigital-Subtraction Angiogram, Right...
Figure 18-24 <bold>RIGHT-SIDED SUBCLAVIAN STEAL SYNDROME. A. Initial Digital-Subtraction Angiogram, Right Subclavian.</bold> O...