By a News Reporter-Staff News Editor at Health & Medicine Week -- Researchers detail new data in Edema. According to news reporting originating from Madison, Wisconsin, by NewsRx correspondents, research stated, "To evaluate agreement between fluorescein angiography (FA) and optical coherence tomography (OCT) results for diagnosis of macular edema in patients with uveitis. Multicenter cross-sectional study."
Our news editors obtained a quote from the research from the University of Wisconsin, "Four hundred seventy-nine eyes with uveitis from 255 patients. The macular status of dilated eyes with intermediate uveitis, posterior uveitis, or panuveitis was assessed via Stratus-3 OCT and FA. To evaluate agreement between the diagnostic approaches, kappa statistics were used. Macular thickening (MT; center point thickness, >= 240 mu m per reading center grading of OCT images) and macular leakage (ML; central subfield fluorescein leakage, >= 0.44 disc areas per reading center grading of FA images), and agreement between these outcomes in diagnosing macular edema. Optical coherence tomography (90.4%) more frequently returned usable information regarding macular edema than FA (77%) or biomicroscopy (76%). Agreement in diagnosis of MT and ML (kappa = 0.44) was moderate. Macular leakage was present in 40% of cases free of MT, whereas MT was present in 34% of cases without ML. Biomicroscopic evaluation for macular edema failed to detect 40% and 45% of cases of MT and ML, respectively, and diagnosed 17% and 17% of cases with macular edema that did not have MT or ML, respectively; these results may underestimate biomicroscopic errors (ophthalmologists were not explicitly masked to OCT and FA results). Among eyes free of ML, phakic eyes without cataract rarely (4%) had MT. No factors were found that effectively ruled out ML when MT was absent. Optical coherence tomography and FA offered only moderate agreement regarding macular edema status in uveitis cases, probably because what they measure (MT and ML) are related but nonidentical macular pathologic characteristics. Given its lower cost, greater safety, and greater likelihood of obtaining usable information, OCT may be the best initial test for evaluation of suspected macular edema. However, given that ML cannot be ruled out if MT is absent and vice versa, obtaining the second test after negative results on the first seems justified when detection of ML or MT would alter management."
According to the news editors, the research concluded: "Given that biomicroscopic evaluation for macular edema erred frequently, ancillary testing for macular edema seems indicated when knowledge of ML or MT status would affect management."
For more information on this research see: Fluorescein Angiography versus Optical Coherence Tomography for Diagnosis of Uveitic Macular Edema. Ophthalmology, 2013;120(9):1852-1859. Ophthalmology can be contacted at: Elsevier Science Inc, 360 Park Ave South, New York, NY 10010-1710, USA. (Elsevier - www.elsevier.com; Ophthalmology - www.elsevier.com/wps/product/cws_home/620418)
The news editors report that additional information may be obtained by contacting J.H. Kempen, University of Wisconsin, Dept. of Ophthalmol, Fundus Photograph Reading Center, Madison, WI, United States. Additional authors for this research include E.A. Sugar, G.J. Jaffe, N.R. Acharya, J.P. Dunn, S.G. Elner, S.L. Lightman, J.E. Thorne, A.T. Vitale and M.M. Altaweel (see also Edema).
Keywords for this news article include: Edema, Madison, Uveitis, Wisconsin, Cardiology, Angiography, Fluoresceins, Hydrocarbons, United States, Ophthalmology, Spiro Compounds, Imaging Technology, North and Central America, Optical Coherence Tomography
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2013, NewsRx LLC