Search results for " Duplex"

Severity of Asymptomatic Carotid Stenosis and Risk of Ipsilateral Hemispheric Ischaemic Events: Results from the ACSRS Study

2005

Objectives. This study determines the risk of ipsilateral ischaemic neurological events in relation to the degree of asymptomatic carotid stenosis and other risk factors. Methods. Patients (n = 1115) with asymptomatic internal carotid artery (ICA) stenosis greater than 50% in relation to the bulb diameter were followed up for a period of 6-84 (mean 37.1) months. Stenosis was graded using duplex, and clinical and biochemical risk factors were recorded. Results. The relationship between ICA stenosis and event rate is linear when stenosis is expressed by the ECST method, but S-shaped if expressed by the NASCET method. In addition to the ECST grade of stenosis (RR 1.6; 95% CI 1.21-2.15), histor…

CORROSION RESISTANCE OF DIFFERENT STAINLESS STEEL GRADES IN FOOD AND BEVERAGE INDUSTRY

2020

The southern Tyrrhenian Sea margin an example of lithospheric scale strike-slip duplex

2010

The southern Tyrrhenian Sea margin is dominated by deformations whose kinematics are relatively poorly constrained, and different models have been proposed to account for its recent evolution. Analysis of new structural and space geodesy data, combined with available geophysical information, reveal a deformation field characterised by subhorizontal NW-SE directed shortening and SW-NE directed extension. The main recognised regional-scale structure comprises E-W trending fault zones, namely the Ustica-Eolie Line and the Mt. Kumeta-Alcantara Line, connected by the NW-SE trending Marettimo, Trapani, San Vito, Palermo, Gratteri-Mt. Mufara and Eolie faults. This fault network displays a remarkab…

The "Renocentric Theory" of Renal Resistive Index: Is It Time for a Copernican Revolution?

2020

Ultrasound (US) with duplex Doppler scanning has spread to the capillary level, becoming an irreplaceable tool in daily clinical practice thanks to its characteristics: low cost, repeatability, and noninvasiveness. Moreover, US has become over time more sensitive and accurate; it can be considered an extension of the clinician’s hand. For this reason, it currently represents the ideal tool for first-level diagnostic use in several fields, and is the simplest and most flexible instrument for obtaining morphological and functional information on different organs, including the kidneys. In this issue of The Journal , Gigante, et al 1 propose to assess renal involvement in patients with systemi…

Ultrasound-guided spinal fracture repositioning

1998

The management of narrowing spinal fragments in the operative treatment of spinal fractures remains an open question, in particular when the procedure is performed by a posterior approach. This article describes the use of intraoperative ultrasonography during spinal surgery. From 1990 to 1997, 116 spinal fractures were treated operatively at our clinic. Stabilization of the spine was achieved with the AO fixateur interne and the AO USS, respectively (Synthes, D-79224, Umkirch, Germany). For 60 cases who had a fractured posterior vertebral surface dislocated into the spinal canal, we used intraoperative ultrasonography to monitor the repositioning of the narrowing fragments. The patients un…

INFLUENZA DELL’ATEROSCLEROSI CAROTIDEA PRECLINICA SUGLI EVENTI CEREBRO- E CARDIOVASCOLARI IN 5 ANNI DI FOLLOW-UP. INFLUENCE OF PRECLINICAL CAROTID AT…

2009

Introduzione: numerosi studi hanno utilizzato la valutazione dello spessore intima-media carotideo (IMT) come marker di aterosclerosi (ATS) preclinica ed è stato ampiamente dimostrato che l’IMT correla con la presenza di ATS coronarica ed è predittivo di eventi sia cardio- che cerebrovascolari. Scopo dello studio: valutare se in soggetti asintomatici la presenza di ATS carotidea preclinica, ispessimento medio intimale carotideo (IMT) e placca carotidea asintomatica (PCA), aggiunga ulteriori informazioni nella stratificazione del rischio permettendo di individuare soggetti che potrebbero beneficiare di un trattamento più aggressivo, anche farmacologico, dei fattori di rischio presenti. Mater…