Hybrid M-mode-like OCT imaging of 3D microvasculature in vivo using reference-free processing of complex-valued B-scans

التفاصيل البيبلوغرافية
العنوان: Hybrid M-mode-like OCT imaging of 3D microvasculature in vivo using reference-free processing of complex-valued B-scans
المؤلفون: Matveev, Lev A., Zaitsev, Vladimir Yu., Gelikonov, Grigory V., Matveyev, Alexandr L., Moiseev, Alexander A., Ksenofontov, Sergey, Gelikonov, Valentin M., Demidov, Valentin, Vitkin, Alex
سنة النشر: 2014
المجموعة: Physics (Other)
مصطلحات موضوعية: Physics - Medical Physics, Physics - Biological Physics, Physics - Optics
الوصف: We propose a novel OCT-based method for visualizing microvasculature in 3D using reference-free processing of individual complex-valued B-scans with highly overlapped A-scans. In the lateral direction of such a B-scan, the amplitude and phase of speckles corresponding to vessel regions exhibit faster variability, and thus can be detected without comparison with other B-scans recorded in the same plane. This method combines elements of several existing OCT angiographic approaches, and exhibits: (i) enhanced robustness with respect to bulk tissue motion with frequencies up to tens of Hz; (ii) resolution of microcirculation images equal to that of structural images and (iii) possibility of quantifying the vessels in terms of their decorrelation rates.
Comment: 4 pages, 2 figures
نوع الوثيقة: Working Paper
DOI: 10.1364/OL.40.001472
URL الوصول: http://arxiv.org/abs/1411.0082
رقم الأكسشن: edsarx.1411.0082
قاعدة البيانات: arXiv