Figure 031_5745. Abnormal spectrum of blood flow velocity in the subclavian artery in a woman with Takayasu arteritis and severe aortic regurgitation. Note the long retrograde flow phase (absent in patients without regurgitation). Figure courtesy of Dr Marek Krzanowski. - McMaster Textbook of Internal Medicine

Figure 031_5745.
Abnormal spectrum of blood flow velocity in the subclavian artery in a woman with Takayasu arteritis and severe aortic regurgitation. Note the long retrograde flow phase (absent in patients without regurgitation). Figure courtesy of Dr Marek Krzanowski.

Figure 031_5745. Abnormal spectrum of blood flow velocity in the subclavian artery in a woman with Takayasu arteritis and severe aortic regurgitation. Note the long retrograde flow phase (absent in patients without regurgitation). Figure courtesy of Dr Marek Krzanowski.