Common carotid artery wall properties in Takayasu's arteritis.
1996
The vessel wall properties of the common carotid artery have been noninvasively and quantitatively assessed with an ultrasonic instrument. Stiffness parameter β, which repre sents the mechanical properties of the vessel, was calculated from the relationship between blood pressure and the diameter of the artery. There are no reports that quan titatively assess wall properties in Takayasu's arteritis.The authors compared, in vivo, the vessel wall properties of the common carotid artery in 14 patients with Takayasu's arteritis versus those in 60 normal subjects (controls). They measured changes in the inner diameter of the artery between systole and diastole with an ultrasonic, phase-locked, echo-tracking system. β was significantly higher in Takayasu's arteritis than in normal subjects (better than a 99% confidence interval). The findings for each decade were as follows: 3rd decade (20s): 35.7 ±28.9 vs 5.01-6.46, P=0.0001; 4th decade (30s): 19.5 ±9.71 vs 6.09-7.80, P=0.02; 5th decade (40s): 26.2 ±11.3 vs 7....
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