This article is more than 5 years old. Information may no longer be current.
Clinician: Enhanced depth imaging OCT assists in choroidal imaging
Click Here to Manage Email Alerts
Enhanced depth imaging optical coherence tomography produces choroidal imaging, which could offer a new understanding of multiple ocular diseases, including age-related choroidal atrophy, according to a speaker.
"Historically, when we looked at OCT images, we had very good ability to delineate the retinal structures, but the choroid wasn't delineated very well. That's partly because the devices were designed to focus on the retina, not on the vitreous or the choroid," Ocular Surgery News Retina/Vitreous Board Member Peter K. Kaiser, MD, said at the Retina 2011 meeting.
Enhanced depth imaging places the OCT close to the eye, he said.
"The idea behind enhanced depth imaging is just take your regular OCT device and instead of pushing it at the same level you focus on the retina, you focus inward on the choroid," Dr. Kaiser said. "This is a very early stage of looking at the choroid but an exciting stage."
Enhanced depth imaging was first described with a Heidelberg imaging device (Heidelberg Engineering) but can also be used with other imaging devices. Imaging the choroid can track choroidal thickness, vital to the understanding of some ocular diseases, Dr. Kaiser said.
"Where you are in the scan will determine what your thickness is," he said. "We're currently working on looking at a way to do this more automated measurement, just like you measure retinal thickness with a thickness map of the retina — we're doing the same thing now with the choroid. You'll see that software coming relatively soon."
- Disclosure: Dr. Kaiser has received honoraria from Carl Zeiss Meditec and Heidelberg Engineering.
Hawaiian Eye and Retina 2012 will be held January 15-20 at the Grand Wailea Resort & Spa in Maui. Learn more at OSNHawaiianEye.com or RetinaMeeting.com.