SD-OCT produces higher resolution images of choroidal osteoma

Article

Spectral domain-optical coherence tomography (SD-OCT) produces deeper and higher resolution images of choroidal osteoma than time domain-OCT.

Spectral domain-optical coherence tomography (SD-OCT) produces deeper and higher resolution images of choroidal osteoma than time domain-OCT, claims a study in the British Journal of Ophthalmology.

Dr Paul T. Finger et al., The New York Eye Cancer Centre, New York, USA, compiled a retrospective chart review of 11 patients with choroidal osteoma. The imaging included patient, clinical ultrasonographic, photographic and SD-OCT. Statistical analysis was used to measure basal diameters of tumours taken from fundus photographs and ultrasound images.

In two patients SD-OCT hyporeflective tumours were found, in seven patients the tumours were isoreflective and in two patients the tumours were hyper-reflective. In four patients the intrinsic reflectivity of the tumour was inhomogeneous.

The retina presented with degenerative changes in five patients and the tumour compressed the overlying choroid in eight patients. The study could provide new developments into choroidal osteoma's pathophysiology and diagnosis.

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