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| Color Doppler ultrasound in the study of hemodynamics of descending aorta |
| YE Yi, ZHAO Bao-zhen, TANG Jing-dong |
| Changhai Hospital, Second Military Medical University, Shanghai 200433, China |
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Abstract Objective: To evaluate color Doppler ultrasound in the study of hemodynamics of descending aorta of normal subjects and patients with hypertension to find the role of hemodynamics of descending thoracic aorta in the pathologic mechanism of Stanford B dissecting aneurysm. Methods: The hemodynamic parameters of the descending aorta were measured by the color Doppler ultrasound in 87 normal subjects and 20 hypertensive patients to test Doppler blood stream spectrum of aortic arch at some sites. Results: High blood speed region were found at the descending aorta in both teams. There was significant difference in the peak distance between the two teams, and so it was with blood flow speed of infra-team and intra-team in different sites. And the velocity from inner-wall to outer-wall was descending. Conclusion: The high speed region in descending thoracic aorta may be associated with the pathologic mechanism of dissecting aneurysm.
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Received: 04 September 2006
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2007, Vol. 18 
