Classification RAR PSV (cm/s) PST Normal <3.5 <120 Absent <60% stenosis <3.5 >180 Absent >60% stenosis >3.5 >180 Present Occlusion N/A N/A N/A Low-velocity, low-amplitude parenchymal signals RAR renal-aortic velocity…
Fig. 7.1 Color duplex ultrasound image of an internal carotid artery showing calcified plaque where a very dense acoustic signal is registered (arrow) with acoustic shadowing (underneath the arrrow) The…
is normally 0.55–0.70 (Fig. 48.1) [7]. Fig. 48.1 Hepatic artery . (a) Color Doppler image of porta hepatis demonstrating color Doppler aliasing corresponding to high-velocity flow in the hepatic artery…
Fig. 6.1 An illustration showing the aortic arch and its branches: (1) brachial-cephalic trunk, (2) right subclavian artery, (3) right vertebral artery, (4) right common carotid artery, (5) right external…
Agent Company Gas Shell Approval First-generation, non-transpulmonary vascular Free microbubbles Echovist (SHU 454) Schering Air Air None Galactose Europe Second-generation, transpulmonary vascular, short half-life (<5 min) Albunex Levovist (SHU 508…
Indications Number Upper extremity venous duplex to rule out thrombosis 191 Upper extremity dialysis evaluations 142 Upper extremity radial artery bypass harvest 16 Upper extremity graft surveillance 35 Evaluation for…
Fig. 56.1 (a) 3-D grayscale (colorized) image of carotid artery atherosclerotic disease in the distal CCA with a small surface ulceration. (b) Corresponding B-mode (2-D) image showing small plaque ulceration…
Fig. 60.1 Percutaneous insertion of needle into the jugular vein Fig. 60.2 Color flow Doppler of jugular vein and carotid artery in short-axis plane. Carotid artery (red) jugular vein (blue)…
Fig. 21.1 A normal right arterial tree (except for occlusion of the right common iliac artery) beginning with the common iliac artery down to the pedal branches. The left side…
Fig. 54.1 Cross-sectional B-mode image showing the widest diameter of the residual aneurysm sac , outer wall to outer wall measurement. (1) anterior/posterior and (2) longitudinal measurement Fig. 54.2 Transducer…
