Understanding Vascular Ultrasonography

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Understanding Vascular Ultrasonography JAMES H. STEWART, M.D Mayo Clinic Proceedings Volume 67, Issue 12, Pages 1186-1196 (December 1992) DOI: 10.1016/S0025-6196(12)61150-1 Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

Fig. 1 M-mode ultrasound study of heart (echocardiogram), showing mitral valve (MV) movements. Mayo Clinic Proceedings 1992 67, 1186-1196DOI: (10.1016/S0025-6196(12)61150-1) Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

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 1992 67, 1186-1196DOI: (10.1016/S0025-6196(12)61150-1) Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

Fig. 3 Color flow Doppler image of Figure 2. This view of carotid bifurcation is possible in only a few cases. Mayo Clinic Proceedings 1992 67, 1186-1196DOI: (10.1016/S0025-6196(12)61150-1) Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

Fig. 4 Normal Doppler velocity waveforms from common carotid (A), internal carotid (B), and external carotid (C) arteries. Mayo Clinic Proceedings 1992 67, 1186-1196DOI: (10.1016/S0025-6196(12)61150-1) Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

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. Mayo Clinic Proceedings 1992 67, 1186-1196DOI: (10.1016/S0025-6196(12)61150-1) Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

Fig. 6 Venous duplex ultrasonography, showing normal common femoral vein (left) at bifurcation into superficial femoral vein (with valve) and profunda femoral vein. Mayo Clinic Proceedings 1992 67, 1186-1196DOI: (10.1016/S0025-6196(12)61150-1) Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

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. Mayo Clinic Proceedings 1992 67, 1186-1196DOI: (10.1016/S0025-6196(12)61150-1) Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

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 1992 67, 1186-1196DOI: (10.1016/S0025-6196(12)61150-1) Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions