BACKGROUND Mapping of the great saphenous vein is very important for planning of peripheral and coronary bypass surgery. This study investigated mapping of the great saphenous vein as an adjunct to peripheral MR angiography using a blood pool contrast agent in patients who were referred for evaluation of peripheral arterial occlusive disease and bypass surgery. METHODS 38 patients with periph...

Nature of the scan Generally, a follow-up scan after a carotid stenting procedure is performed for the surveillance of the stent, not for monitoring of the untreated contralateral carotid. Hence, if the contralateral artery is not significantly stenosed, we perform ipsilateral scans only (i.e. “targeted US”). Since the distal/cephalic end of the carotid stent can be placed well distal/cephalic ...

BACKGROUND AND PURPOSE The correct detection and quantification of carotid artery disease are of decisive impact on patient prognosis and adequate treatment. In this study, we evaluated the ability of ultrasonography to detect and to grade carotid artery stenosis through a comparison of the in vivo ultrasound findings with the planimetric analysis of the corresponding postmortem specimens. ME...

BACKGROUND AND PURPOSE Vertebral stenosis is associated with a high risk of recurrent stroke, but noninvasive imaging techniques to identify it have lacked sensitivity. Contrast-enhanced MR angiography and CT angiography have been recently developed and appear to have better sensitivity. However, no prospective studies have compared both of these techniques with ultrasound against the gold stan...

OBJECTIVES To examine the value of an intravenous urogram (i.v.U) in patients with abnormal differential (99m)Tc dimercaptosuccinic acid (DMSA) uptake without scarring or ultrasound abnormality. STUDY DESIGN Forty patients (age 0-19 years) were identified over a two year period in whom the differential renal uptake was >10%, who had smooth renal outlines, and had no evidence of scarring. All ...

OBJECTIVES Duplex ultrasound investigation has become the reference standard in assessing the morphology and haemodynamics of the lower limb veins. The project described in this paper was an initiative of the Union Internationale de Phlébologie (UIP). The aim was to obtain a consensus of international experts on the methodology to be used for assessment of veins in the lower limb by ultrasound ...

Renal artery disease is an important cause of both renal failure and hypertension. Duplex ultrasound is a reliable noninvasive method for classifying the severity of renal artery lesions and can be repeated to follow the course of the disease over time. The purpose of this study was to determine the changes in kidney size associated with various degrees of renal artery disease. Serial kidney le...

Title: Cross-sectional area variations of internal jugular veins during supine head rotation in multiple sclerosis patients with chronic cerebrospinal venous insufficiency: a prospective diagnostic controlled study with duplex ultrasound investigation Authors:

Introduction entire vessel is imaged and the most optimal Doppler sample is assessed. The transducer is then repositioned Currently, duplex ultrasound (US) is the preferred in a transverse plane until the ‘‘seagull sign’’, representing both the common hepatic and splenic arteries diagnostic modality for the evaluation of obstructive disease of both the arterial and venous system of the in a sin...