نتایج جستجو برای: in contrast
تعداد نتایج: 16993399 فیلتر نتایج به سال:
Background and purpose: N-Acetylcysteine (NAC) has been found to reduce the risk of Contrast Induced Nephropathy (CIN) in chronic renal insufficiency after CT imaging with contrast enhancement. The purpose of the current study was to evaluate the efficacy of NAC, for the prevention of CIN in normal renal functioning patients undergoing coronary angiography. Materials and Methods: We prospe...
purpose: to investigate the relationship between higher-order aberrations (hoas) and contrast sensitivity function (csf) in myopes. methods: in this cross-sectional study, hoas and csf were measured in myopic eyes over a 6-mm pupil. pupil diameter was measured in photopic condition. the correlation between hoas and csf was investigated using multivariate linear regression analysis. results: sev...
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