نتایج جستجو برای: background contrast
تعداد نتایج: 1192412 فیلتر نتایج به سال:
Background :Inversion recovery (IR) pulse sequences can generate T1-weighted images with a different range of inversion time (TI) to suppress or null the signal intensity (SI) for a specified tissue. In this study, we aimed to investigate the effect of TI values on the concentration of the contrast agent, which leads to a minimum signal intensity, using an inversion recovery T1-weighted 3-dim...
Background: Magnetic resonance imaging (MRI) contrast agents have an important role to differentiate healthy and diseased tissues. Access and design new contrast agents for the optimal use of MRI are necessary. This study aims to evaluate iron oxide–4A nanocomposite ability to act as a magnetic resonance imaging contrast agent.Materials and Methods: Iron oxide–4A nanocomposite (F4A) was syn...
Background: Today using contrast media in order to diagnose different tissues in radiology section has found a vast range of applications. Thus application of safe procedures and protocols in usage of contrast media to prevent dangerous reactions seems to be of great necessity. That is why in this study we aimed to evaluate the safety of intravenous administration of contrast media in the radio...
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