1. Articles from O. S. Streltsova

    1-2 of 2
    1. Advantages of cross-polarization endoscopic optical coherence tomography in diagnosis of bladder neoplasia

      Advantages of cross-polarization endoscopic optical coherence tomography in diagnosis of bladder neoplasia
      We consider the cross-polarization OCT (CP OCT) that is focused on comparison of images resulting from cross-polarization and co-polarization scattering simultaneously. This technique provides information about microstructural and biochemical alterations in depolarizing tissue components (collagen). We found that mature type I collagen gives a strong signal in orthogonal polarization. CP OCT images of benign inflammatory processes always feature signal in orthogonal polarization, with layers and borders persisting to be well defined. In the presence of precancerous alterations, signal in orthogonal polarization is available in the image but it is irregular, disappearing in some areas. A CP OCT image of bladder ...
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    2. Cross-polarization endoscopic optical coherence tomography in urology

      Cross-polarization endoscopic optical coherence tomography in urology
      We present results obtained using a two-channel portable device for CP OCT based on the polarization-maintaining fiber. The device is capable of acquiring OCT images of the object in direct and orthogonal polarizations simultaneously. The OCT system has an endoscopic forward-looking probe (2.7 mm in diameter). The CP OCT imaging was done in 64 postoperative specimens, for 30 patients during cystoscopy with suspicion of urothelial neoplasia, and for 11 patients with prostatectomy due to cancer. After surgery in the tissue specimen we immediately introduced surgical suture and investigated a bladder wall by CP OCT. When comparing OCT images and ...
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    1-2 of 2
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  2. Topics in the News

    1. (2 articles) Institute of Applied Physics
    2. (2 articles) Nizhny Novgorod State Medical Academy
    3. (2 articles) Elena V. Zagaynova
    4. (2 articles) Natalia D. Gladkova
    5. (2 articles) Olga S. Streltsova
    6. (2 articles) Valentin M. Gelikonov
    7. (1 articles) Elena B. Kiseleva
    8. (1 articles) Maria M. Karabut
    9. (1 articles) Katerina E. Yunusova
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