Injury of optic radiation and visual field defect in a patient with aneurysmal subarachnoid hemorrhage

  title={Injury of optic radiation and visual field defect in a patient with aneurysmal subarachnoid hemorrhage},
  author={Sung Ho Jang and Jeong Pyo Seo},
Rationale: Little is known about optic radiation (OR) injury following aneurysmal subarachnoid hemorrhage (SAH). In the current study, we report on a patient who showed a visual field defect and injury of the OR following aneurysmal SAH, using diffusion tensor tractography (DTT). Patient concerns: At 4 weeks from onset, when a 62-year old female started rehabilitation, she complained of a visual field defect. Peripheral field defects were detected on both eyes using the Humphrey visual field… 

Diffusion Tensor Imaging Studies on Spontaneous Subarachnoid Hemorrhage-Related Brain Injury: A Mini-Review

Accurate diagnosis of the presence and severity of neural injury in patients with subarachnoid hemorrhage (SAH) is important in neurorehabilitation because it is essential for establishing

White Matter Abnormalities in Traumatic Subarachnoid Hemorrhage: A Tract-Based Spatial Statistics Study

The results demonstrated abnormalities of white matter in traumatic subarachnoid hemorrhage patients, and the abnormality locations are compatible with areas that are vulnerable to diffuse axonal injury.

Midbrain Injury in Patients With Subarachnoid Hemorrhage: A Diffusion Tensor Imaging Study

The anterior ventral midbrain was the most severely injured among four regions of the midbrain and a pathophysiological mechanism of these neural injuries might be related to the occurrence of a subarachnoid hematoma.



Damage to the Optic Radiation in Patients With Mild Traumatic Brain Injury

  • S. JangJ. Seo
  • Medicine
    Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society
  • 2015
Diffusion tensor imaging (DTI) demonstrated injury of the OR using DTI in 2 patients who showed visual field defects after mild TBI.

Diffusion Tensor Imaging Findings of Optic Radiation in Patients with Putaminal Hemorrhage

The result suggests that patients with putaminal hemorrhage are at high risk of OR injury, as indicated by any abnormality of OR in the affected hemisphere on DTI.

Late ophthalmological assessment of patients with subarachnoid hemorrhage and clipping of cerebral aneurysm

Damage to the visual pathway correlates with the severity of SAH and timing of aneurysmal surgery, and visual field defects and VEP deterioration are frequent late ocular manifestations ofSAH treated withAneurysm clipping.

Bilateral Homonymous Quadrantanopsia due to Optic Radiation Injury in a Patient with Traumatic Brain Injury.

It seems that diffusion tensor tractography for the OR is a useful technique for detection of an OR injury in patients with traumatic brain injury.

Ischemic Optic Neuropathy Associated with Subarachnoid Hemorrhage after Rupture of Anterior Communicating Artery Aneurysm

Two clinical cases in which ischemic optic neuropathy (ION) occurred after subarachnoid hemorrhage (SAH) are reported and the incidence appears to be attributable to an insufficient blood supply to arteries distributed in the posterior part of the optic nerve as a result of SAH.

Subarachnoid hemorrhage in the subacute stage: elevated apparent diffusion coefficient in normal-appearing brain tissue after treatment.

SAH and its treatment may cause global mild vasogenic edema in white matter and deep gray matter that is undetectable on T2- Weighted and diffusion-weighted MR images but is detectable by measuring the ADC value in the subacute stage of SAH.

Unilateral visual loss due to ischaemic injury in the right calcarine region: a functional magnetic resonance imaging and diffusion tension imaging follow-up study

Functional recovery of a patient with cerebrovascular injury using combined functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) and analysis of acute-phase DTI data disclosed that a reduction of fractional anisotropy in the right optic radiation had almost resolved after 1 month.

Resolution of Homonymous Visual Field Loss Documented with Functional Magnetic Resonance and Diffusion Tensor Imaging

  • Masaki YoshidaM. Ida E. Cabanis
  • Medicine
    Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society
  • 2006
Abstract:A 68-year-old man developed right homonymous hemianopic paracentral scotomas from acute infarction of the left extrastriate area. He was studied over the ensuing 12 months with visual

Reconstruction and Dissection of the Entire Human Visual Pathway Using Diffusion Tensor MRI

T tractography of the entire visual pathway was achieved in six healthy subjects at high spatial accuracy, that is, at 1.8 mm isotropic spatial resolution, without susceptibility-induced distortions, and in direct correspondence to anatomic MRI structures.

Homonymous hemianopia caused by occipital lobe infarction in heparin-induced thrombocytopenia and thrombosis syndrome.

This is the first report to document the clinical and imaging features of a HITTS stroke and the first to describe a stroke presumptively caused by a low molecular weight heparin, emphasizing that HITTS may cause stroke even when the platelet count is normal.