Spectral-domain optical coherence tomography (SD-OCT) is one such commonly used modality. Future studies may demonstrate the usefulness of imaging devices as an objective measure of detecting progression. 1 Physicians have come to rely on data from these imaging devices to help them differentiate healthy patients from those with glaucoma. In the last decade, the use of imaging technology for glaucoma increased dramatically. Physicians should be alert to the possibility of artifacts, particularly in patients with ocular pathologic features such as an epiretinal membrane. Some of these artifacts may not be evident on the final printout. The most common cause of artifacts for macular thickness and RNFL scans was ocular pathologic features, primarily the presence of an epiretinal membrane.Ĭonclusions and Relevance It is likely that SD-OCT–related imaging artifacts occur in 15.2% to 36.1% of scans obtained in patients being evaluated for glaucoma. Seven of these artifacts were not evident on the final printout. Six of these artifacts were not obvious on the final printout. Of the macular thickness scans, 37 (28.2% 95% CI, 20.8%-36.1%) had imaging artifacts. Results In 277 consecutive patients, 131 macular thickness scans were obtained, and 277 RNFL scans were obtained. Main Outcomes and Measures The presence of imaging artifacts. Examples of common artifacts are provided. If present, artifacts were classified as evident on the final printout or not and were categorized as to the primary source of the artifact (eg, ocular pathologic features or technician errors). For each scan, the final printout and the source images that generated the final printout were examined. Retinal nerve fiber layer (RNFL) and macular thickness scans were included. Objectives To determine the frequency and distribution of SD-OCT imaging artifacts in patients being evaluated for glaucoma and to provide examples of common artifacts.ĭesign, Setting, and Participants A retrospective cross-sectional study design was used to examine SD-OCT images (using Spectralis SD-OCT) of 277 consecutive patients who had a diagnosis of glaucoma of any stage or had suspected glaucoma. Understanding the types of artifacts commonly seen in the imaging of patients being evaluated for glaucoma will help physicians better implement these data in the care of patients. Importance Spectral-domain optical coherence tomography (SD-OCT) has an integral role in the diagnosis and treatment of glaucoma. Shared Decision Making and Communication.Scientific Discovery and the Future of Medicine.Health Care Economics, Insurance, Payment.Clinical Implications of Basic Neuroscience.Challenges in Clinical Electrocardiography.
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