The Food and Drug Administration cleared the DRI OCT Triton imaging platform from Topcon almost a year ago, but at his clinic in Brazil, Daniel Lavinsky, MD, has been using the device for some time, and reports that it has helped to improve his workflow and decision-making by providing “almost every crucial information necessary for my diagnosis and therapeutic decision.”
Dr. Lavinsky, who practices at the Federal University of Rio Grande do Sul in Porto Alegre, Brazil, explains that Triton has improved the way he images the retina, “because it incorporates color fundus imaging, high resolution wide-field optical
coherence tomography and OCT
angiography to my clinical practice in a quick and objective way.” He notes that previous technologies he’s used could acquire either high-resolution scans or fast scans, but lacked OCTA until recently.
DRI OCT Triton Features
The DRI OCT Triton features a 1-µm, 1,050-nm light source with a scanning speed of 100,000 A-scans/second. It incorporates a built-in retinal camera, eye tracking for selected scans, OCT imaging, color, red-free, fluorescein angiography and fundus autofluorescence imaging with swept-source OCT.
|A readout from the DRI OCT Triton showing spectral domain vs. swept source optical coherence tomography scans, and the device itself (below) showing the operator screen. |
Topcon also notes the DRI OCT Triton can visualize deeper pathology, penetrating the choroid and even the sclera, without being obscured by media opacities or hemorrhage. The DRI OCT Triton can visualize from the vitreous through to the sclera with high sensitivity and speed, the company says. The instantaneous capture of a high-density data cube, composed of 512 B-scans, reduces interpolation between slices, revealing imagery. The instrument also features wide-field OCT scanning (12 x 9 mm) with a reference database.
“The most striking advantage of SS-OCT is speed and depth,” Dr. Lavinsky says. “With Triton OCT, we are able to quickly acquire wide-field OCT with high-quality scans. And we are able to analyze the optic disc, macula and retinal vasculature with just one cube.”
Going to Greater Depth
He also notes that, in his experience, the Triton achieves greater depth than other OCT platforms he’s used. “With SS-OCT we are capable of acquiring high-resolution images of the vitreous down to the sclera with details that we were not able to get previously with other technologies,” Dr. Lavinsky says.
The instrument has also had an impact on his workflow. “It hastens and improves my workflow, since it provides posterior and anterior high-quality OCT scans, performs OCTA, autofluorescence and fluorescein angiography in one instrument, quickly and precisely,” he says.
Dr. Lavinsky also uses the
IMAGEnet 6 software that enables dynamic viewing of the OCT data, providing two- and three-dimensional and fundus images simultaneously.
Triton also enhances viewing through media opacities. “It is very important to be able to view and image through media opacities such as cataract and vitreous hemorrhages, especially for deciding treatment of macular edema and before cataract surgery,” Dr. Lavinsky says.
He’s found Triton to be particularly helpful in managing chronic central serous chorioretinopathy, “since we now are able to detect the pachychoroidal spectrum, from epitheliopathy through to choroidal neovascularization, with precision and without the need of intravenous contrasts.”
Dr. Lavinsky disclosed he is a consultant to Topcon.