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Ir |
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Ir, symbol for the element iridium iridium (ĭrĭd`ēəm), metallic chemical element; symbol Ir; at. no. 77; at. wt. 192.22; m.p. about 2,410°C;; b.p. ..... Click the link for more information. . IR(1) (Industry Remarketer) Same as VAR or VAD. Ir (chemistry)
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Fluid attenuating inversion recovery (FLAIR) MRI sequences may show typical demyelinating lesions in a periventricular location if optic neuritis is related to demyelination. Examination of magnetic resonance imaging fluid-attenuation inversion recovery sequences has already become a routine procedure, and fluid-attenuation inversion recovery is the sequence of choice for subtle, noncontrast-enhancing lesions, such as gliomatosis cerebri, in which its advantages include exquisite sensitivity and lack of the background ventricular and subarachnoid space cerebrospinal fluid signal ''noise'' seen in T2-weighted sequences. nbsp;periventricular area were revealed in every mode of images (fluid-attenuated inversion recovery, T2-weighted intensity, diffusion-weighted images, and T1WI) and were comparable with the patient's symptoms and signs. |
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