1. Understanding Vascular Ultrasonography
JAMES H. STEWART, M.D 
Mayo Clinic Proceedings 
Volume 67, Issue 12, Pages (December 1992)
DOI: /S (12)
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Fig. 1
M-mode ultrasound study of heart (echocardiogram), showing mitral valve (MV) movements.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

3. Fig. 2
B-mode ultrasound image of normal carotid bifurcation, showing common carotid artery (right) at its bifurcation into internal and external carotid arteries (left). Jugular vein lies above bifurcation.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

4. Fig. 3
Color flow Doppler image of Figure 2. This view of carotid bifurcation is possible in only a few cases.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

5. Fig. 4
Normal Doppler velocity waveforms from common carotid (A), internal carotid (B), and external carotid (C) arteries.
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Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

6. Fig. 5
Velocity waveform display (A) at a left internal carotid artery (LT ICA) with more than 80% stenosis. Note high velocity (450 cm/s) and spectral broadening. Color flow Doppler image (B) with color changes indicating high velocity at stenosis.
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Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

7. Fig. 6
Venous duplex ultrasonography, showing normal common femoral vein (left) at bifurcation into superficial femoral vein (with valve) and profunda femoral vein.
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Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

8. Fig. 7
Venous duplex ultrasonography, showing deep venous thrombosis in longitudinal (A) and transverse (B) views with venous flow (blue) around clot. Light pressure with probe (arrows) failed to compress thrombosed vein (C). A = artery; V C COMP = vein with compression.
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Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

9. Fig. 8
Color flow Doppler image of common femoral artery bifurcation, showing superficial femoral artery (SFA) and profunda femoral artery (PROF A).
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions