Tag Michelle L. Robbin

Peripheral Vessels

Summary of Key Points Key aspects of vascular Doppler imaging include knowledge of anatomy and waveform morphology, scanning technique, and attention to detail. Spectral Doppler velocity criteria can characterize stenosis detected by gray-scale and color Doppler. Doppler evaluation of peripheral…

The Kidneys

Renal Vascular Doppler Ultrasound Ultrasound is the imaging modality of choice for evaluation of the kidneys, especially in patients with borderline renal function, the incidence of which is increasing. In comparison with other modalities, ultrasound has the distinct advantage of…

Haemodialysis Access

Arteriovenous Fistulas and Synthetic Arteriovenous Grafts At the end of 2009, there were 571,414 patients being treated for end-stage renal disease in the United States with 116,395 new cases in that year ; approximately 65% of these patients received haemodialysis.…