Hyperintense Optic Nerve due to Diffusion Restriction: Diffusion-Weighted Imaging in Traumatic Optic Neuropathy

Bodanapally, Uttam K.; Shanmuganathan, Kathirkamanathan; Shin, Robert K.; Dreizin, David; Katzman, Lee; Reddy, Ramachandra P.; Mascarenhas, Daniel

doi:10.3174/ajnr.a4290

Cited by 37 publications

(26 citation statements)

References 14 publications

(13 reference statements)

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“…2a) [31]. Traumatic optic neuropathy (TON) can be confirmed using MRI as hyperintensity of the optic nerve due to diffusion restriction can serve as a specific imaging marker and when paired with reduced ADC values, an important surrogate for visual acuity [32].…”

Section: Facial Anatomy and Landmarksmentioning

confidence: 99%

Facial fractures: classification and highlights for a useful report

et al. 2020

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In patients with facial trauma, multidetector computed tomography is the first-choice imaging test because it can detect and characterize even small fractures and their associated complications quickly and accurately. It has helped clinical management and surgical planning, so radiologists must communicate their findings to surgeons effectively. In Le Fort fractures, there is a breach between the pterygoid plates and the posterior maxilla. These fractures are classified in three basic patterns that can be combined and associated with various complications. Conceptualized when low-speed trauma was predominant, the Le Fort classification system has become less relevant giving more importance on maxillary occlusion-bearing segments. The classification of naso-orbito-ethmoid depends on the extent of injury to the attachment of the medial canthal tendon, with possible complications like nasofrontal duct disruption. Displaced fractures of the zygomaticomaxillary complex often widen the angle of the lateral orbital wall, resulting in increased orbital volume and sometimes in enophthalmos. Severe comminution or angulation can lead to wide surgical exposure. In orbital fractures, entrapment of the inferior rectus muscles can lead to diplopia, so it is important to assess its positioning and morphology. Orbital fractures can also result in injuries to the globe or infraorbital nerve. Frontal sinus fractures that extend through the posterior sinus wall can create a communication with the anterior cranial fossa resulting in leakage of cerebrospinal fluid, intracranial bleeding. It is essential to categorize fracture patterns and highlight features that may affect fracture management in radiology reports of facial trauma.

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Section: Facial Anatomy and Landmarksmentioning

confidence: 99%

Facial fractures: classification and highlights for a useful report

et al. 2020

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“…Accordingly, results of this study were also regarded to be suggestive of disruption in the optic nerve. Despite several number of studies that investigated the relationship between MS and optic nerve disruption on DWI have been conducted (6,16,(21)(22)(23)29), there have not been any previous study in the literature that investigated the changes at the optic nerve head/intraorbital segment in patients with MS. With DWI, there can have difficulties in evaluating the canalicular and intracranial segments of the optic nerve due to anatomical localization, but intraorbital segment and the optic nerve head can be examined with higher precision (30). Seeger et al (30) reported that it is possible to detect optic neuritis, with high sensitivity, in the intraorbital segment without the need for contrast.…”

Section: Discussionmentioning

confidence: 99%

Apparent Diffusion Coefficient Variabilities of the Optic Nerve in Multiple Sclerosis: Optic nerve head and Intraorbital segment

Şahan¹,

İnal²,

Asal³

et al. 2019

Eastern J Med

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“…VA was converted into a logarithm of the minimum angle of resolution (logMAR) units (On-line Table 3) to provide a numeric scale for statistical analysis. 11,12 Diagnostic performance of the strongest CT predictor derived from the regression analysis was further analyzed by receiver operating characteristic curves after converting the visual outcome into a binary variable (VA Յ LP and VA Ն LP). The data excluded from regression analysis were used as a test set to validate the results because all the patients had admission facial CT scans.…”

Section: Discussionmentioning

confidence: 99%

Prognostic Predictors of Visual Outcome in Open Globe Injury: Emphasis on Facial CT Findings

Bodanapally¹,

Addis

Dreizin³

et al. 2017

AJNR Am J Neuroradiol

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Hyperintense Optic Nerve due to Diffusion Restriction: Diffusion-Weighted Imaging in Traumatic Optic Neuropathy

Abstract: Hyperintensity of the optic nerve due to diffusion restriction can serve as a specific imaging marker of traumatic optic neuropathy. When paired with reduced ADC values, this finding may be an important surrogate for visual acuity.

Cited by 37 publications

References 14 publications

Facial fractures: classification and highlights for a useful report

Facial fractures: classification and highlights for a useful report

Apparent Diffusion Coefficient Variabilities of the Optic Nerve in Multiple Sclerosis: Optic nerve head and Intraorbital segment

Prognostic Predictors of Visual Outcome in Open Globe Injury: Emphasis on Facial CT Findings

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