Abstract：
PURPOSE:To compare the sensitivities of high-speed Fourier-domain optical coherence tomography (FD-OCT) and conventional time-domain (TD) OCT for the detection of clinical findings important in the management of common vitreoretinal disorders. DESIGN:Prospective, observational study. METHODS:FD-OCT scans (128 B scans x 512 A scans) were obtained using a prototype instrument (3 D-OCT; Topcon, Tokyo, Japan) in 50 eyes of 28 consecutive patients undergoing conventional high-resolution (6 B scans x 512 A scans) TD-OCT imaging (Stratus OCT; Carl Zeiss Meditec, Dublin, California, USA). Each image set was reviewed independently for the presence of clinical findings of interest, and device sensitivities were calculated. RESULTS:The average sensitivity for detection of all features in this study was 94% for FD-OCT and 60% for TD-OCT. Clinical findings were identical between devices in 18% (9/50) of cases. FD-OCT detected features that were not visible on conventional OCT scans in 78% (39/50) of cases. FD-OCT was more sensitive than TD-OCT for the detection of multiple findings, including diffuse intraretinal edema (87% vs 60.9%), subretinal fluid (100% vs 46.2%), large pigment epithelium detachments (100% vs 81%), and subretinal tissue (100% vs 61.5%). CONCLUSIONS:FD-OCT seems to be superior to TD-OCT for the detection of many clinically relevant features of vitreoretinal disease. The greater sensitivity of FD-OCT systems for the detection of intraretinal and subretinal fluid may be of particular importance for the treatment of patients with neovascular age-related macular edema. FD-OCT is likely to supplant TD-OCT as the standard of care for retinal specialists in the near future.
journal_name
Am J Ophthalmoljournal_title
American journal of ophthalmologyauthors
Keane PA,Bhatti RA,Brubaker JW,Liakopoulos S,Sadda SR,Walsh ACdoi
10.1016/j.ajo.2009.03.004subject
Has Abstractpub_date
2009-08-01 00:00:00pages
242-248.e1issue
2eissn
0002-9394issn
1879-1891pii
S0002-9394(09)00159-7journal_volume
148pub_type
杂志文章abstract：:We treated nontraumatic ectopia lentis with the irrigation and aspiration method in 30 children and the Keeler/SITE instrument in three. Preoperative visual acuities were 6/21 (20/70) or worse in all patients; postoperatively, visual acuities improved in 29 of the 30 eyes and were 6/18 (20/60) or better in 24 (80%). A...
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