نتایج جستجو برای: optic nerve hypoplasia
تعداد نتایج: 201064 فیلتر نتایج به سال:
cochlear nerve (cn) aplasia refers to the absence of a visible cn on oblique sagittal magnetic resonance images of the lateral aspect of the inner auditory canal (iac). magnetic resonance (mr) is the preferred technique in patients with sensorineural hearing loss and/or vertigo; however, computed tomography (ct) is used to evaluate the iac or facial nerve canal. three types of aplasia or hypopl...
PURPOSE Few studies have assessed optic disk and retinal morphology in infants. Here the optic disk and optic disk-to-fovea distance were measured in preterm and full-term infants in vivo. METHODS Optic disk (OD) dimensions and the center-to-center distance between the OD and the macula were measured using digital imaging in infants undergoing routine ophthalmic examinations. Postmenstrual ag...
Although known for almost 80 years, the physiological role of plasmalogens (PLs), the major mammalian ether lipids (ELs), is still enigmatic. Humans that lack ELs suffer from rhizomelic chondrodysplasia punctata (RCDP), a peroxisomal disorder usually resulting in death in early childhood. In order to learn more about the functions of ELs, we generated a mouse model for RCDP by a targeted disrup...
PURPOSE High-resolution magnetic resonance imaging (MRI) can now directly demonstrate innervation to extraocular muscles and quantify optic nerve size. A quantitative MRI technique was developed to study the oculomotor nerve (CN3) and applied to congenital fibrosis of extraocular muscles (CFEOM) and congenital oculomotor palsy. METHODS The subarachnoid portions of the CN3s were imaged with a ...
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