RIU 436 Lecture Notes - Lecture 32: Aortic Arch, Carotid Artery Dissection, Aorta
22 Jul 2020
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Stenotic flow profiles may be noted in true lumen (2)false lumen will demonstrate high resistance flow patterns unless thrombosed (3) Reversed flow may also be noted in the false lumen (4) 10. b-mode images of the dissections should be taken in both long and trans planes, using multiple approaches. 11. doppler waveforms and velocities should be recorded from the false and true lumens. 12. color images can be used to demonstrate: location of dissection, proximal and distal ends of dissection, open or thrombosed lumens, tapering and length of stenosis, arterial thrombosis. 10. takayasu: affects: (1)aortic arch (2)brachiocephalic (3) (4) Subclavian: signs and symptoms: (1)claudication of arms (2)no radial pulses (3) (4) multiple bruits. Tia and stroke symptoms: typically affects younger individuals, sonographic examination techniques (1)suspected in young women (2)may result in carotid and/or renal artery evaluation (3) Lesions tend to appear as long, smooth, homogenous narrowing (general wall thickening) (4) obtain doppler waveforms as far proximal as possible (5)
