PMID- 25650415 OWN - NLM STAT- MEDLINE DCOM- 20150903 LR - 20181113 IS - 1552-5783 (Electronic) IS - 0146-0404 (Print) IS - 0146-0404 (Linking) VI - 56 IP - 3 DP - 2015 Feb 3 TI - Aqueous cell differentiation in anterior uveitis using Fourier-domain optical coherence tomography. PG - 1430-6 LID - 10.1167/iovs.14-15118 [doi] AB - PURPOSE: The differential diagnosis of a patient presenting with anterior uveitis is broad and can present a diagnostic challenge. In this study, we evaluate the characteristic findings of inflammatory cells on optical coherence tomography (OCT) both in vitro and in vivo. METHODS: Blood from two healthy volunteers was prepared using standardized methods for cell sorting with a flow cytometer (FASCAria). Neutrophils, lymphocytes, monocytes, and red blood cells were placed in suspension and scanned with a 26-kHz Fourier-domain OCT system (RTVue) with 5-mum axial resolution. Custom software algorithms were used to identify cells based on their reflectance distribution. These algorithms were then applied to OCT images obtained from uveitis patients with active anterior chamber inflammation. RESULTS: On OCT images the cells appeared as hyperreflective spots. In vitro, cell reflectance was statistically significantly different between all of the cell types (neutrophils, monocytes, lymphocytes, and red blood cells, P < 0.001, Mann-Whitney test). In vivo, the relationship between underlying disease and cell type imaged on OCT was highly statistically significant, with human leukocyte antigen (HLA)-B27-associated uveitis patients having a predominantly polymorphonuclear pattern on OCT and sarcoidosis and inflammatory bowel disease patients having a predominantly mononuclear pattern on OCT (P < 0.001, Fisher's exact test). CONCLUSIONS: These in vitro and in vivo data demonstrate the potential of OCT to evaluate cells in the anterior chamber of patients noninvasively. Optical coherence tomography may be a useful adjunct to guide the diagnosis and treatment of ocular inflammatory conditions. CI - Copyright 2015 The Association for Research in Vision and Ophthalmology, Inc. FAU - Rose-Nussbaumer, Jennifer AU - Rose-Nussbaumer J AD - Casey Eye Institute, Oregon Health and Science University, Portland, Oregon, United States. FAU - Li, Yan AU - Li Y AD - Casey Eye Institute, Oregon Health and Science University, Portland, Oregon, United States. FAU - Lin, Phoebe AU - Lin P AD - Casey Eye Institute, Oregon Health and Science University, Portland, Oregon, United States. FAU - Suhler, Eric AU - Suhler E AD - Casey Eye Institute, Oregon Health and Science University, Portland, Oregon, United States. FAU - Asquith, Mark AU - Asquith M AD - Casey Eye Institute, Oregon Health and Science University, Portland, Oregon, United States. FAU - Rosenbaum, James T AU - Rosenbaum JT AD - Casey Eye Institute, Oregon Health and Science University, Portland, Oregon, United States. FAU - Huang, David AU - Huang D AD - Casey Eye Institute, Oregon Health and Science University, Portland, Oregon, United States. LA - eng GR - R01 EY018184/EY/NEI NIH HHS/United States GR - R01EY018184/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20150203 PL - United States TA - Invest Ophthalmol Vis Sci JT - Investigative ophthalmology & visual science JID - 7703701 SB - IM MH - Adult MH - Aged MH - Algorithms MH - Aqueous Humor/*cytology MH - Erythrocytes/physiology MH - Female MH - *Flow Cytometry MH - *Fourier Analysis MH - Humans MH - *Image Interpretation, Computer-Assisted MH - In Vitro Techniques MH - Lymphocytes/physiology MH - Male MH - Middle Aged MH - Monocytes/physiology MH - Neutrophils/physiology MH - Software MH - *Tomography, Optical Coherence MH - Uveitis, Anterior/*diagnosis/*physiopathology MH - Young Adult PMC - PMC4347308 OTO - NOTNLM OT - Fourier-domain optical coherence tomography OT - anterior uveitis OT - image analysis OT - mononuclear leukocytes OT - polymorphonuclear leukocytes EDAT- 2015/02/05 06:00 MHDA- 2015/09/04 06:00 PMCR- 2015/09/01 CRDT- 2015/02/05 06:00 PHST- 2015/02/05 06:00 [entrez] PHST- 2015/02/05 06:00 [pubmed] PHST- 2015/09/04 06:00 [medline] PHST- 2015/09/01 00:00 [pmc-release] AID - iovs.14-15118 [pii] AID - IOVS-14-15118 [pii] AID - 10.1167/iovs.14-15118 [doi] PST - epublish SO - Invest Ophthalmol Vis Sci. 2015 Feb 3;56(3):1430-6. doi: 10.1167/iovs.14-15118.