Total number of accredited labs 1653 Total number of accredited sites 2736 Testing areas: Extracranial 1498 (90%) Intracranial 83 (5%) Venous 1197 (72%) Arterial 1187 (71%) Visceral 370 (22%) Screening…
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 arrow) The…
is normally 0.55–0.70 (Fig. 46.1) [7]. Fig. 46.1 Hepatic artery waveform. (a) Color Doppler image of porta hepatis demonstrating high flow in the hepatic artery (arrow, HA) adjacent to the…
Fig. 6.1 An illustration showing the aortic arch and its branches: (1) brachiocephalic trunk, (2) right subclavian artery, (3) right vertebral artery, (4) right common carotid artery, (5) right external…
Classification RAR PSV PST Normal <3.5 <120 cm/s Absent <60% stenosis ≤3.5 >180 cm/s Absent >60% stenosis >3.5 >180 cm/s Present Occlusion N/A N/A N/A Low velocity, low amplitude parenchymal…
Agent Company Gas Shell Approval First generation, nontranspulmonary vascular Free microbubbles Schering Air None Europe Echovist (SHU 454) Air Galactose Second–generation, transpulmonary vascular, short half–life (<5 min) Albunex Molecular biosystems…
Fig. 54.1 (a) 3D gray scale (colorized) image of carotid artery atherosclerotic disease in the distal CCA with a small surface ulceration. (b) Corresponding B-mode (2D) image showing small plaque…
Fig. 29.1 Raynaud’s attack in a 46-year-old female Patients with Raynaud’s syndrome are divided into two groups. Raynaud’s disease is a term used to describe an idiopathic benign form of…
Fig. 4.1 Sequential image generation (Reprinted from Miele 2008. ©2008 Miele Enterprises, LLC. With permission) Absorption To further understand the ultrasound image, it is important to discuss the mechanical interaction…
Fig. 49.1 Lateral view demonstrating the typical ostial location of most atherosclerotic lesions in the main mesenteric vessels. There is a severe stenosis of both the celiac (larger arrow) and…
