نتایج جستجو برای: transient ischemic dilation
تعداد نتایج: 216713 فیلتر نتایج به سال:
Different software tools for quantification of myocardial perfusion SPECT (MPS) studies are routinely used. Several perfusion parameters can be computed automatically. Interpretation of the MPS should start with visual inspection of the rotating planar images, visual analysis of reconstructed SPECT slices and then quantitative analysis to confirm the visual impression. Quantification should be ...
OBJECTIVES This study aimed to separate proposed mechanisms for segmental ischemic mitral regurgitation (MR), including left ventricular (LV) dysfunction versus geometric distortion by LV dilation, using models of acute and chronic segmental ischemic LV dysfunction evaluated by three-dimensional (3D) echocardiography. BACKGROUND Dysfunction and dilation-both mechanisms with practical therapeu...
Ischemic preconditioning elicited by a non-fatal brief occlusion of blood flow has been applied for an experimental therapeutic strategy against a subsequent fatal ischemic insult. In this study, we investigated the neuroprotective effects of ischemic preconditioning (2-minute transient cerebral ischemia) on calbindin D28k immunoreactivity in the gerbil hippocampal CA1 area following a subseque...
Transient ischemic attacks (TIAs) are ominous and call for acute interventions, including hospitalization. TIAs are defined by complete resolution of an acute neurologic deficit, but any amount of recovery is probably the most important defining feature and, paradoxically, is strongly predictive of a subsequent event. Most patients should be hospitalized after a TIA, to provide an opportunity t...
We report new limits on cosmic neutrino fluxes from the test flight of the Antarctic Impulsive Transient Antenna (ANITA) experiment, which completed an 18.4 day flight of a prototype long-duration balloon payload, called ANITA-lite, in early 2004. We search for impulsive events that could be associated with ultrahigh energy neutrino interactions in the ice and derive limits that constrain sever...
We present optical and infrared observations of the soft X-ray transient (SXT) XTEJ2012+381 and identify the optical counterpart with a faint red star heavily blended with a brighter foreground star. The fainter star is coincident with the radio counterpart and appears to show weak Hα emission and to have faded between observations. The RXTE/ASM lightcurve of XTE J2012+381 is unusual for an SXT...
BACKGROUND AND AIM Effective implementation of early treatment strategies for stroke requires prompt admission to hospital. There are several reasons for delayed admission. Good awareness should facilitate early admission. We identified local targets for education. METHODS Four groups, each of 40 people, completed questionnaires to determine their knowledge of stroke symptoms and risk factors...
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