PMID- 26088029 OWN - NLM STAT- MEDLINE DCOM- 20160321 LR - 20150703 IS - 1423-0259 (Electronic) IS - 0030-3747 (Linking) VI - 54 IP - 1 DP - 2015 TI - Multimodal Imaging of Cotton Wool Spots in Branch Retinal Vein Occlusion. PG - 48-56 LID - 10.1159/000430843 [doi] AB - PURPOSE: To describe and follow cotton wool spots (CWS) in branch retinal vein occlusion (BRVO) using multimodal imaging. METHODS: In this prospective cohort study including 24 patients with new-onset BRVO, CWS were described and analyzed in color fundus photography (CF), spectral domain optical coherence tomography (SD-OCT), infrared (IR) and fluorescein angiography (FA) every 3 months for 3 years. The CWS area on SD-OCT and CF was evaluated using OCT-Tool-Kit software: CWS were marked in each single OCT B-scan and the software calculated the area by interpolation. RESULTS: 29 central CWS lesions were found. 100% of these CWS were visible on SD-OCT, 100% on FA and 86.2% on IR imaging, but only 65.5% on CF imaging. CWS were visible for 12.4 +/- 7.5 months on SD-OCT, for 4.4 +/- 3 months and 4.3 +/- 3.4 months on CF and on IR, respectively, and for 17.5 +/- 7.1 months on FA. The evaluated CWS area on SD-OCT was larger than on CF (0.26 +/- 0.17 mm(2) vs. 0.13 +/- 0.1 mm(2), p < 0.0001). The CWS area on SD-OCT and surrounding pathology such as intraretinal cysts, avascular zones and intraretinal hemorrhage were predictive for how long CWS remained visible (r(2) = 0.497, p < 0.002). CONCLUSIONS: The lifetime and presentation of CWS in BRVO seem comparable to other diseases. SD-OCT shows a higher sensitivity for detecting CWS compared to CF. The duration of visibility of CWS varies among different image modalities and depends on the surrounding pathology and the CWS size. CI - (c) 2015 S. Karger AG, Basel. FAU - Munk, Marion R AU - Munk MR AD - Department of Ophthalmology, Medical University of Vienna, Vienna, Austria. FAU - Matt, Gerlinde AU - Matt G FAU - Baratsits, Magdalena AU - Baratsits M FAU - Dunavoelgyi, Roman AU - Dunavoelgyi R FAU - Huf, Wolfgang AU - Huf W FAU - Montuoro, Alessio AU - Montuoro A FAU - Buehl, Wolf AU - Buehl W FAU - Schmidt-Erfurth, Ursula AU - Schmidt-Erfurth U FAU - Sacu, Stefan AU - Sacu S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150612 PL - Switzerland TA - Ophthalmic Res JT - Ophthalmic research JID - 0267442 SB - IM MH - Aged MH - *Diagnostic Techniques, Ophthalmological MH - Female MH - Fluorescein Angiography MH - Humans MH - Male MH - Middle Aged MH - *Multimodal Imaging MH - Photography/methods MH - Prospective Studies MH - Retinal Hemorrhage/pathology MH - Retinal Vein Occlusion/*diagnosis/pathology MH - Tomography, Optical Coherence/methods EDAT- 2015/06/20 06:00 MHDA- 2016/03/22 06:00 CRDT- 2015/06/20 06:00 PHST- 2015/04/07 00:00 [received] PHST- 2015/04/20 00:00 [accepted] PHST- 2015/06/20 06:00 [entrez] PHST- 2015/06/20 06:00 [pubmed] PHST- 2016/03/22 06:00 [medline] AID - 000430843 [pii] AID - 10.1159/000430843 [doi] PST - ppublish SO - Ophthalmic Res. 2015;54(1):48-56. doi: 10.1159/000430843. Epub 2015 Jun 12.