نتایج جستجو برای: ultrasound duplex scanning

تعداد نتایج: 280202  

Shamanian, M., Abdolvand, R. , Allafchian, A. , Atapour, M.,

Transient liquid phase bonding of  UNS S32750 super duplex stainless steel to AISI 304 austenitic stainless steel using BNi-2 interlayer was carried out at 1050 oC for 45 min. Microstructure analyses of the joint were carried out using optical microscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Microhardness indentation and shear strength test were performed to as...

Journal: :The Yale Journal of Biology and Medicine 1977
K.J.W. Taylor D. Sullivan J. Simeone A.T. Rosenfield

Isotope examination of the liver depends on the functional activity of the liver phagocytes, while ultrasound and CT scanning display the anatomical structure. Cold areas on an isotope scan may be due to impaired function or space-occupying lesions. The method is nonspecific and does not differentiate between cysts, abscesses and metastases. Both ultrasound and CT scanning can differentiate spa...

2012
Juha Havukumpu Jari Takatalo Göte Nyman Jukka Häkkinen

Ultrasound imaging, which is also called ultrasound scanning or sonography, is conducted by exposing part of the body to high-frequency sound waves to produce a visualization of the inside of the body. Ultrasound scanning is non-invasive, so it is usually painless. It is also widely available, easy-to-use and less expensive than other imaging methods. Because ultrasound imaging uses no ionizing...

Journal: :European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery 1999
R H Geelkerken J H van Bockel

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...

Journal: :Journal of vascular and interventional neurology 2013
Nassir Rostambeigi Rakesh Khatri Ameer E Hassan Adnan I Qureshi

Carotid artery occlusion is a major risk factor for ischemic stroke. Endovascular treatment of carotid artery occlusion in high-risk patients offers a therapeutic option to reduce subsequent ischemic events. The technical success and avoidance of complications of the endovascular recanalization of occluded carotid artery is contingent on proper visualization of the vessel wall. To highlight the...

Journal: :Journal of physics 2022

Abstract Duplex stainless steel has been widely applied to industry. In this paper, nondestructive testing, chemical composition analysis, metallographic hardness test, and scanning electron microscope were used study the causes of crack in butt joint girth weld pipe flange. Both flange are duplex S31803. Through it was judged that a crystalline crack, generated welding process, which related p...

Journal: :European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery 2011
M De Maeseneer O Pichot A Cavezzi J Earnshaw A van Rij F Lurie P C Smith

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

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