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Intraoperative OCT system may improve posterior, anterior segment surgeries
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A spectral-domain OCT system integrated into a surgical microscope may improve the quality of posterior and anterior segment procedures, according to a study.
The retrospective single-center case series evaluated initial clinical experience of the Rescan 700 intraoperative OCT system (iOCT, Carl Zeiss Meditec) in 40 consecutive cases.
The time burden was an average of 2 minutes 36 seconds, which could lead to fewer anesthesia-related problems, the study authors said.
Average imaging time varied from 117 seconds for anterior segment surgeries, 128 seconds for posterior segment surgeries and 182 seconds for combined procedures.
There were two instances of additional information gain and no cases of altered decision-making reported in the nine anterior segment surgeries.
iOCT imaging provided additional information in 23 of the 31 posterior segment or combined surgeries, with 13 cases resulting in altered decision-making.
The system was also usable when combined with chromovitrectomy dyes and tamponades.
“[Retinal detachment] surgery may benefit most from iOCT imaging, especially when utilizing PFCL (perfluorocarbon liquid), since the optical image is altered by PFCL,” the study authors said. “Additionally, an accordion-like microarchitectural alteration within the outer layers of the retina and persistent subretinal fluid were detectable using iOCT imaging in RD surgery, which subsided within the first day post-surgery.” – by Kristie L. Kahl
Disclosure: The authors report no relevant financial disclosures.
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Pfau M, et al. Ophthalmic Surg Lasers Imaging Retina. 2015;doi:10.3928/23258160-20151027-03.
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