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(2005-04-15 18:45:49) 下一個
Continuous Wave Doppler: Suprasternal Notch Transducer Postion

NC021a-2.jpg

CW Beam in the Ascending Aorta

CW Beam:    In the Ascending Aorta
Normal Flow:    Systolic
Abnormal Findings:
  1. Increased systolic flow velocity and spectral broadening due to aortic or subaortic stenosis.
  2. Retrograde diastolic flow due to aortic insufficiency.


NC021b-3.jpg

CW Beam in the Descending Aorta

CW Beam: In the Descending Aorta
Normal Flow: Systolic
Abnormal Finding: Increased systolic flow velocity and spectral broadening due to coarctation of the  aorta.


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