نتایج جستجو برای: contrast improvement
تعداد نتایج: 692741 فیلتر نتایج به سال:
Background: Due to the obvious differences in the natural course of rheumatoid arthritis (RA) and osteoarthritis (OA),different functional outcomes might be expected after Total Knee Arthroplasty (TKA) in these distinct patients. Althoughseveral studies have reported the objective outcome of TKA in RA and OA patients, few studies have compared postoperativepatient-satisfaction levels.Methods: I...
BACKGROUND Despite successful reperfusion therapy of acute myocardial infarction and complete restoration of infarct-related artery patency, the improvement of systolic function in long-term outcome depends on preserved microvasculature integrity. Myocardial contrast echocardiography (MCE) is a useful technique for identification of viable myocardium. AIM To assess the value of real-time myoc...
In recent years, to reduce the complexity of implementation, the use of 2D arrays with restricted row-column addressing has been considered for 3D ultrasound imaging. In this paper, two methods of adaptive beamforming based on the minimum variance method are represented in such a way that the computational load is much less than using the full adaptive beamforming method. In both proposed metho...
BACKGROUND AND PURPOSE Our aim was to evaluate the relationship of pain reduction, after intradiskal lidocaine administration during provocation lumbar diskography, to the presence of contrast leakage on postdiskographic imaging. MATERIALS AND METHODS Intradiskal lidocaine was injected at 182 significantly painful disk levels in 111 patients. The clinical records and imaging studies were revi...
background: mammography is the primary imaging technique for detection and diagnosis of breast cancer; however, the contrast of a mammogram image is often poor, especially for dense and glandular tissues. in these cases the radiologist may miss some diagnostically important microcalcifications. in order to improve diagnosis of cancer correctly, image enhancement technology is often used to enha...
The goal of hyptensive anesthesia is the safe reduction of intraoperative blood loss, thus reducing transfusion risks. Previous hypotensive technics had a narrow margin of safety in that cardiac output was usually reduced in proportion to the degree of induced hypotension. This is in contrast to the results of our study, in which Sodium Nitroprusside was used as the sole hypotensive agent. Ni...
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