In the present work, numerical simulations were conducted for a typical end-to-side distal graft anastomosis to assess the effects of inducing secondary flow, which is believed to remove unfavourable flow environment. Simulations were carried out for four models, generated based on two main features of 'out-of-plane helicity' and 'spiral ridge' in the grafts as well as their combination. Follow...

The flame forming process is widely used to manufacture ship hull plates. The saddle-shaped surfaces have different curvatures in perpendicular angles of planes and the manufacturers face an anti-clastic curvature. In this article, the manufacturing of saddle-shaped surfaces utilizing the flame forming process is investigated. The spiral irradiating scheme is used for forming. In order to study...

Although the excellent spatial resolution of multislice spiral computed tomography (MSCT) enables the coronary arteries to be visualized, its limited temporal resolution results in poor image reproducibility because of cardiac motion artifact (CMA) and hence limits its widespread clinical use. A novel retrospectively ECG-gated reconstruction method has been developed to minimize CMA. In 88 cons...

Sandra V. Ashton, Guy St. J. Whitley, Philip R. Dash, Mark Wareing, Ian P. Crocker, Philip N. Trophoblasts Through Fas/FasL Interactions Uterine Spiral Artery Remodeling Involves Endothelial Apoptosis Induced by Extravillous Print ISSN: 1079-5642. Online ISSN: 1524-4636 Copyright © 2004 American Heart Association, Inc. All rights reserved. Greenville Avenue, Dallas, TX 75231 is published by the...

Background First-pass contrast-enhanced myocardial perfusion CMR is a useful non-invasive technique for evaluating coronary artery disease. 3D perfusion imaging provides images at the same cardiac phase which may be advantageous for quantifying ischemic burden, but current techniques have limited spatiotemporal resolution. We previously presented a 3D stack-of-spiral (SoS) perfusion method, how...

We describe the case of a 72-year-old man presenting with endocarditis and clinical signs of acute myocardial ischemia after biological aortic valve replacement. A comprehensive cardiac dynamic multislice spiral computed tomography demonstrated: (1) an endocarditic vegetation of the aortic valve; (2) a subvalvular leakage feeding a paravalvular pseudoaneurysm based on an aortic root abscess wit...

We present the case of a 28-year-old woman admitted to our department with respiratory distress, profound hypotension, and tenderness in the left upper abdominal quadrant and left calf. Ultrasound examination revealed left lower extremity thrombus as well as a floating thrombus in the right atrium attached to a patent foramen ovale. Spiral computed tomography revealed bilateral pulmonary artery...

Background Quantitative first-pass CMR can assess the severity of microvascular coronary dysfunction(MCD) in subjects with signs and symptoms of ischemia but without obstructive coronary artery disease(CAD). In patients with MCD, abnormalities of myocardial perfusion reserve (MPR) occur globally but may also vary in their transmural extent. Thus, high spatial resolution quantitative CMR perfusi...