Analysis and Frequency of Computed Tomography Findings in Traumatic Globe Injuries: Are the Anterior Chamber Depth and Optic Nerve Sheath Diameter Affected in Globe Injuries?

Cilt: 7 Sayı: 1 1 Ocak 2021
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Analysis and Frequency of Computed Tomography Findings in Traumatic Globe Injuries: Are the Anterior Chamber Depth and Optic Nerve Sheath Diameter Affected in Globe Injuries?

Abstract

Objective: Our aim was to evaluate the characteristic computed tomography CT findings in globe and other orbital injuries, investigate the changes in the anterior chamber depth ACD , and determine whether globe injuries affect the optic nerve sheath diameter ONSD .Material and Methods: A total of 691 patients who underwent orbital CT due to orbital trauma were retrospectively analyzed. Two radiologists evaluated the CT images and measured the ONSD at 3 mm and 5 mm posterior to the globe for both eyes in addition to the ACD, without knowledge of ophthalmologic examination findings. The reliability of the measurement of the two observers was evaluated by inter-class correlation ICC analyses. Results: There were 486 men and 205 women in the study group. Globe injuries were detected in 55 patients 8% . Blunt traumas constituted 92% of all orbital traumas, and globe injuries were detected in 3.5% of blunt traumas. Lens dislocation and vitreous hemorrhage were the most common CT findings in closed-globe injuries. ICC between the observers was found to be excellent in ONSD and ACD measurements. ACD was lower in globe rupture p=0.001 . The best cut-off value for ACD for detecting globe rupture was 2.475 mm. There was no statistically significant difference between the injured and non-injured globes on ONSD measurement. Conclusion: It is well known that ophthalmologic examination is the key method for the rapid and accurate diagnosis of most ocular injuries. In cases where ophthalmological examination cannot be performed properly such as severe facial injury, radiological imaging becomes a powerful tool in the diagnosis of ocular injury when combined with ophthalmological examination. Globe contours in closed-globe injuries are generally normal, and the identification of changes in the shape and position of the lens and an anterior chamber depth lower than 2.5 mm are significant for globe rupture

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Kaynakça

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Selçuk Parlak Bu kişi benim

Esra Çıvgın Bu kişi benim

Yayımlanma Tarihi

1 Ocak 2021

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Yayımlandığı Sayı

Yıl 2021 Cilt: 7 Sayı: 1

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Vancouver
1.Selçuk Parlak, Esra Çıvgın. Analysis and Frequency of Computed Tomography Findings in Traumatic Globe Injuries: Are the Anterior Chamber Depth and Optic Nerve Sheath Diameter Affected in Globe Injuries? Akd Tıp D [Internet]. 01 Ocak 2021;7(1):103-10. Erişim adresi: https://izlik.org/JA48MT97WS