corona

(redirected from Corona radiata)
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Synonyms for corona

the outermost region of the sun's atmosphere

(botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower

one or more circles of light seen around a luminous object

(anatomy) any structure that resembles a crown in shape

a long cigar with blunt ends

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References in periodicals archive ?
(A) Representative photomicrographs: (a) score 0, no expansion; (b) score 1, no cumulus cell expansion but cells appear as spherical; (c) score 2, only the outermost layers of cumulus cells have expanded; (d) score 3, all cell layers have expanded except the corona radiata; (e) score 4, expansion has occurred in all cell layers including the corona radiata.
Caption: FIGURE 1: Axial contrast enhanced T1WI brain MRI demonstrating rim enhancing lesions in the right peritrigonal white matter and left corona radiata.
Caption: Figure 1: Brain MRI showing left corona radiata and parietal ischemic lesion on T2-weighted MRI (a, c) and diffusion-weighted imaging (DWI, (b), (d)).
Caption: Figure 3: Brain MRI performed on the third day revealed (a) high signal intensity on DW image and (b, c) well-defined rounded cystic lesion on the T2-weighted and T1-weighted images involving in the right corona radiata and basal ganglia, compressing the right lateral ventricle with midline shift to left, suggestive of an early stage of brain abscess.
Particularly, a somatotopic organization of motor fibers in corona radiata and rostral pons is relatively well known.
Even in the absence of stroke-like episodes, MRI of patient 1 showed widespread hyperintensity on T2-weighted images of the bilateral frontal lobe, bilateral parietal lobe, basal ganglia, and corona radiata, indicating cerebral ischaemia, lacunar infarction, and cerebral atrophy.
Legends: Primary oocytes (PO), primordial follicles cells (PFH), Epithelial cells (E), tunica albuginea (TA), theca interna (TI), theca eksterna (TE), zona pellucida (ZP), antrum (A), granuloza cells (GH), Secondary oocytes (PO), corona radiata (CR), cumulus oophorus (CO).
The other 4patients of Behcet's disease presenting with headache, 2 (50%) had normal MRI, 1 (25%) brainstem hyperintensities and 1 (25%) ischemic changes in left insular cortex and corona radiata. Byung-Sik Cho et al found that the brainstem is the most commonly involved region (55%) in neuro-behcet19.
A non-contrast CT scan of the head reveals foci of low attenuation in the left frontal corona radiata. Follow-up MRI of the brain, with and without contrast, shows extensive supratentorial and infratentorial demyelinating lesions consistent with multiple sclerosis (MS).
The overlapping lesions of the brain included the putamen, thalamus, internal capsule, corona radiata, and primary and premotor cortices (Figure 1: the color represents the frequency of overlap).
CT features in early infantile Krabbe disease are increased attenuation in cerebellum, brainstem, thalami, caudate nuclei and corona radiata on non-contrast CT.
The ROIs were placed bilaterally (except for the corpus callosum) at the following anatomical locations: the posterior limb of the internal capsule, the centrum semiovale anterior, the posterior corona radiata anterior and posterior, the splenium and the genu of the corpus callosum, the thalamus, and the caudate nucleus (Figure 1).