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Abstract #70835 Published in IGR 18-2
Active-passive path-length encoded (APPLE) Doppler OCT
Wartak A; Haindl R; Trasischker W; Baumann B; Pircher M; Hitzenberger CKBiomedical optics express 2016; 7: 5233-5251
We present a novel active-passive path-length encoded (APPLE) swept source Doppler optical coherence tomography (DOCT) approach, enabling three-dimensional velocity vector reconstruction of moving particles without prior knowledge of the orientation of motion. The developed APPLE DOCT setup allows for non-invasive blood flow measurements in vivo and was primarily designed for quantitative human ocular blood flow investigations. The system's performance was demonstrated by in vitro flow phantom as well as in vivo retinal vessel bifurcation measurements. Furthermore, total retinal blood flow - a biomarker aiding in diagnosis and monitoring of major ocular diseases such as glaucoma, diabetic retinopathy or central/branch retinal vein occlusion - was determined in the eyes of healthy human volunteers.
Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währinger Gürtel 18-20 / 4L, 1090 Vienna, Austria.
Full articleClassification:
6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)
6.9.2.2 Posterior (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis > 6.9.2 Optical coherence tomography)
