J Korean Ophthalmol Soc.  2014 Mar;55(3):387-390. 10.3341/jkos.2014.55.3.387.

Enhanced Depth Imaging Optical Coherence Tomography of Choroidal Nevus : Comparison to B-Scan Ultrasonography

• Kweon EY

• KMID: 2218267
• DOI: http://doi.org/10.3341/jkos.2014.55.3.387

Abstract

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 microm (120-1850 microm) by EDI-OCT compared 1295 microm (780-2400 microm) by BUS. The mean difference in the tumor thickness between two techniques was 475 microm (27-1319 microm) (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.

Keyword

Choroidal Nevus; Enhanced Depth Imaging Optical Coherent Tomography; Ultrasonography

MeSH Terms

Choroid*
Humans
Medical Records
Nevus*
Photography
Retinaldehyde
Retrospective Studies
Shadowing (Histology)
Subretinal Fluid
Tomography, Optical Coherence*
Ultrasonography*
Retinaldehyde

Figure

• 

  Figure 1. Color fundus photograph (FP), EDI-OCT and BUS of choroidal nevi. (A) FP showing pigmented choroidal nevus. EDI-OCT showing no drusen, RPE thinning, and thinning of choriocapillaris (CC). (B) FP showing pigmented choroidal nevus. EDI-OCT showing RPE thinning (black arrow), and normal CC. (C) FP showing pigmented choroidal nevus with overlying drusen. EDI-OCT showing drusen, trace subretinal fluid (arrowhead), RPE thinning (black arrow), and marked thinning of CC (white arrow).

Reference

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