You searched for "MRI"

221 results found

DTI/MRI results in amblyopia

Diffusion tensor imaging (DTI) is an MRI technique that can evaluate white matter integrity and neuronal connectivity. Normal brain maturation and myelination are associated with reduced water diffusion and increased diffusion anisotropy. The authors aimed to evaluate the anterior optic...

Differentiating orbital tumours on MRI

This is a literature review examining the ability of specific MRI modalities to differentiate between benign and malignant tumours of the orbit. The authors identified 29 articles reporting diffusion weighted image (DWI) values and corresponding apparent diffusion coefficients (ADC) for...

MRI characteristics of NMO, MOG and MS-related ON

This review article examined differences of MRI appearances that can help clinicians assess and manage these important neuro-ophthalmic disorders. It also examined the role of optic nerve MRI as a prognostic indicator in acute optic neuritis (ON). The major findings...

MRI in anisometropic amblyopia

This study recruited patients with anisometropic amblyopia in the right eye and without strabismus. This allowed the authors to reduce the effort exerted in cortex activities by different amblyopic eyes. They used whole brain analysis to find the differences between...

Using MRI to assess normal variation in optic chiasm anatomy

The authors present an MRI study including 61 MRI scans using a 1.5 T with slice thickness of 1 or 5mm and the sequence showing the highest resolution of the chiasm. A predetermined set of measurements were taken in a...

Early diagnosis of pituitary apoplexy using combined MRI findings

The author presents a literature review searching the terms ‘pituitary ring sign’ and ‘sphenoid sinus mucosal thickening’ in the context of pituitary apoplexy from 1990 until the present day. These two findings are both magnetic resonance imaging (MRI) signs of...

Could midbrain volume on MRI be used to guide diagnosis of progressive supranuclear palsy?

The authors present a cohort study, of patients with a likely diagnosis of progressive supranuclear palsy (PSP) using a combination of prospective assessment and retrospective review. The cohort comprised of 14 patients; the data for six patients was obtained through...

A novel way to diagnose optic neuropathies using Bruch’s membrane opening

Differential diagnosis of optic neuropathies can be challenging but is crucial for the correct management of the underlying disease and prevention of further damage. Bruch’s membrane opening (BMO) was recently discovered as the anatomical border of the optic disc. BMO...

Aspheric toric IOL implantation and LRI in eyes with cataracts and astigmatism

This is a prospective study from a single unit to compare the visual outcome of aspheric toric intraocular lens (IOL) implantation and limbal relaxing incisions (LRI) for management of coexisting age-related cataracts and astigmatism. Sixty eyes of 60 patients with...

A case of progressive supranuclear palsy-like syndrome following aortic aneurysm repair

This original article illustrates the case of an 18-year-old woman who developed progressive supranuclear palsy-like syndrome following an uneventful aortic aneurysm repair. The patient was unaffected for the first 48 hours after surgery and then developed dysarthria, dysphagia (requiring a...

Using perimetry to support lesion location in the retrochiasmal visual pathway

The authors present a retrospective case review of patients with homonymous hemianopia from a 30-year period. Inclusion criteria included completion of perimetry within two years of diagnosis and a MRI brain. Data extracted from the records included demographics, diagnosis details...

Morning glory syndrome associated with PHPV

This is a retrospective review of the medical records of 85 eyes / 74 patients diagnosed as morning glory syndrome (MGS) in the clinic between November 2009 and November 2012. Twenty two eyes of 19 patients diagnosed as having MGS...