מסגרת עם רקע לכותרת

Prevalence and Severity of Artifacts in Optical Coherence Tomographic Angiograms

תמונת נושא מאמר
05.12.2019 | Ian C. Holmen, MD; Sri Meghana Konda, MD; Jeong W. Pak, PhD; et al

בשל "הגנת זכויות יוצרים", מובא להלן קישור למאמר בלבד. לקריאתו בטקסט מלא, אנא פנה לספרייה הרפואית הזמינה לך.

 

Artifacts can affect optical coherence tomographic angiography (OCTA) images and may be associated with misinterpretation of OCT scans in both clinical trials and clinical settings.

 

identify the prevalence and type of artifacts in OCTA images associated with quantitative output and to analyze the role of proprietary quality indices in establishing image reliability.

 

 

This cross-sectional study evaluated baseline OCTA images acquired in multicenter clinical trials and submitted to the Fundus Photograph Reading Center in Madison, Wisconsin, between January 1, 2016, and December 31, 2018.

 

Images were captured using the 3 mm × 3 mm and/or 6 mm × 6 mm scan protocol with commercially available OCTA systems. Artifacts, including decentration, segmentation error, movement, blink, refraction shift, defocus, shadow, Z offset, tilt, and projection, were given a severity grade based on involvement of cross-sectional OCT and area of OCT grid affected.

JAMA Ophthalmol. 2020;138(2):119-126. doi:10.1001/jamaophthalmol.2019.4971
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