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KMID : 0360220140550030387
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Journal of the Korean Ophthalmological Society
2014 Volume.55 No. 3 p.387 ~ p.390
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Enhanced Depth Imaging Optical Coherence Tomography of Choroidal Nevus : Comparison to B-Scan Ultrasonography
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Kweon Eui-Yong
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Abstract
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Purpose: To evaluate the characteristics of choroidal nevus using the enhanced depth imaging spectral domain optical coherence tomography (EDI SD-OCT), with a comparison to the B scan ultrasound (BUS) findings.
Methods: Medical records of 124 eyes of 124 choroidal nevus patients were reviewed retrospectively. All patients underwent fundus photography (FP), EDI SD-OCT, and BUS.
Results: Of 124 eyes with choroidal nevus examined by EDI SD-OCT, 43 eyes (35%) displayed good images to study. The most common EDI-OCT imaging features included choroidal shadowing, choriocapillary thinning, retinal pigment epithelial changes, and overlying subretinal fluid. The mean nevus thickness was 817 μm (120-1850 μm) by EDI-OCT compared 1295 μm (780-2400 μm) by BUS. The mean difference in the tumor thickness between two techniques was 475 μm (27-1319 μm) (p < 0.05).
Conclusions: These results have suggested that imaging of choroidal nevus with EDI-OCT shows superior measurement of its characteristics compared with ultrasonography. The clinical utility of this modality is emerging. EDI-OCT is useful in distinguishing suspicious nevi from other chorioretinal lesions, detecting tumor re-growth along the treatment margin, and demonstrating retinal or choroid tumor location.
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KEYWORD
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Choroidal Nevus, Enhanced Depth Imaging Optical Coherent Tomography, Ultrasonography
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