PMID- 23204834 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20121204 LR - 20211021 IS - 1177-5483 (Electronic) IS - 1177-5467 (Print) IS - 1177-5467 (Linking) VI - 6 DP - 2012 TI - Optimizing visualization in enhanced depth imaging OCT in healthy subjects and patients with retinal pigment epithelial detachment. PG - 1915-20 LID - 10.2147/OPTH.S35596 [doi] AB - BACKGROUND: This study's objective was to optimize the visualization of three different spectral-domain optical coherence tomography (SD-OCT) display modalities and evaluate enhanced depth imaging (EDI) by comparing the maximum depth of assessment in conventional versus inverted cross-sectional OCT images in healthy subjects and in patients with retinal pigment epithelial detachment (PED). METHODS: Cross-sectional SD-OCT conventional and inverted images were obtained with the HRA2 (Heidelberg Retina Angiograph II, Heidelberg Engineering, Heidelberg, Germany). Horizontal as well as vertical sections in three different display modes were blinded for evaluation by three independent, experienced graders for maximal imaging depth of the deep ocular fundus layers. RESULTS: The mean imaging depth as measured from the inner segment/outer segment (IS/OS) to the outer choroid of all 14 healthy subjects was 197 +/- 44 mum vs 263 +/- 56 mum for conventional vs EDI scans: in black/white mode, it was significantly lower (P < 0.001) than in white/black mode (249 +/- 42 mum vs 337 +/- 71 mum) and color/heat mode (254 +/- 48 mum vs 354 +/- 73 mum). The mean imaging depth of all 14 study eyes with PED was 240 +/- 78 mum vs 345 +/- 100 mum for conventional vs EDI scans in black/white mode, and was significantly lower (P < 0.001) than in white/black mode (393 +/- 104 mum vs 464 +/- 126 mum) and in color/heat mode (373 +/- 106 mum vs 453 +/- 114 mum). In each display modality of healthy subjects and of patients with PED, EDI scans showed a significantly higher imaging depth than the corresponding conventional scans. CONCLUSION: White/black and color/heat modes allow increased imaging depth, compared to black/white mode using both conventional or EDI OCT scans in healthy subjects or patients with PED. EDI obtained with HRA2 significantly improves the imaging depth, compared to conventional OCT scans. FAU - Reznicek, Lukas AU - Reznicek L AD - Department of Ophthalmology, Ludwig Maximilians University Muenchen, Munich, Germany. FAU - Vounotrypidis, Efstathios AU - Vounotrypidis E FAU - Seidensticker, Florian AU - Seidensticker F FAU - Kortuem, Karsten AU - Kortuem K FAU - Kampik, Anselm AU - Kampik A FAU - Neubauer, Aljoscha S AU - Neubauer AS FAU - Wolf, Armin AU - Wolf A LA - eng PT - Case Reports DEP - 20121121 PL - New Zealand TA - Clin Ophthalmol JT - Clinical ophthalmology (Auckland, N.Z.) JID - 101321512 PMC - PMC3508745 OTO - NOTNLM OT - EDI OCT OT - OCT OT - enhanced depth imaging OT - imaging mode OT - optical coherence tomography OT - pigment epithelial detachment EDAT- 2012/12/04 06:00 MHDA- 2012/12/04 06:01 PMCR- 2012/11/21 CRDT- 2012/12/04 06:00 PHST- 2012/12/04 06:00 [entrez] PHST- 2012/12/04 06:00 [pubmed] PHST- 2012/12/04 06:01 [medline] PHST- 2012/11/21 00:00 [pmc-release] AID - opth-6-1915 [pii] AID - 10.2147/OPTH.S35596 [doi] PST - ppublish SO - Clin Ophthalmol. 2012;6:1915-20. doi: 10.2147/OPTH.S35596. Epub 2012 Nov 21.