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Efficiency of different imaging methods in detecting ocular foreign bodies
Tongjie Cheng1,2,3, Hongmei Zhao1,2,3, Qian Chen1,2,3
1Department of Ophthalmology and Visual Science, Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai, People's Republic of China.
Medical Physics
|December 6, 2023
Summary
Ultrasound biomicroscopy (UBM) is superior for detecting ocular foreign bodies (OFBs), especially plant-based or small ones. Conventional imaging like CT and X-ray struggle with these challenging OFBs.
Area of Science:
- Ophthalmology
- Medical Imaging
- Ocular Trauma
Background:
- Ocular foreign bodies (OFBs) are common in eye injuries and pose a significant risk to vision.
- Accurate identification and localization of OFBs are crucial for surgical removal but remain challenging.
Purpose of the Study:
- To evaluate and compare the diagnostic efficiency of various imaging modalities for detecting and localizing ocular foreign bodies.
Main Methods:
- Retrospective analysis of 134 patients with ocular trauma and OFBs between 2016-2022.
- Compared detection rates of ultrasound biomicroscopy (UBM), computed tomography (CT), X-ray, and ocular B-scan ultrasonography (B-scans).
Main Results:
- CT and X-ray showed lower detection rates for plant-based, small (<1.00 mm), and sclera-located OFBs.
- B-scans were less effective for plant-based and sclera-located OFBs.
- UBM was confirmed as the primary detection method in surgical cases.
Conclusions:
- Conventional imaging methods (CT, X-ray, B-scans) have limitations in detecting specific types of OFBs.
- Ultrasound biomicroscopy (UBM) is suggested as a more suitable imaging modality for suspected ocular foreign bodies, particularly plant-based or small ones.
