1. David Levitz

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    1. Mentioned In 12 Articles

    2. Associating optical coherence tomography (OCT) data with visual imagery of a sample

      Associating optical coherence tomography (OCT) data with visual imagery of a sample
      A multi-modal imaging and optical property measurement device that is integrated into an interferometer. Data acquired by the multiple imaging modalities in parallel include measurements of single-scattered, multiple-scattered, and diffuse light that enable characterization of different ranges within different depth regions in the sample. The system includes different interferometer configurations and different imaging modalities, and has a signal-processing unit that associates and co-registers interferometric, multi-spectral, and polarization sensitive measurements to ...
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    3. Dermal reflectivity determined by optical coherence tomography is an indicator of epidermal hyperplasia and dermal edema within inflamed skin

      Dermal reflectivity determined by optical coherence tomography is an indicator of epidermal hyperplasia and dermal edema within inflamed skin
      ... has the potential to aid in the quantitative assessment of psoriasis in humans. Kevin G. Phillips, Yun Wang, David Levitz, Niloy Choudhury, Emily Swanzey, James Lagowski, Molly Kulesz-Martin and Steven L. Jacques, "Derm...
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    4. Measuring Optical Properties of Engineered Tissues Using Optical Coherence Tomography (Thesis)

      Measuring Optical Properties of Engineered Tissues Using Optical Coherence Tomography (Thesis)
      The ability of optical imaging techniques such as optical coherence tomography (OCT) to non-destructively characterize engineered tissues has generated enormous interest recently. The engineered tissue of interest here is the collagen gel, wherein smooth muscle cells (SMCs) are embedded in a 3D collagen I matrix. This thesis focuses on characterizing collagen gels quantitatively, by measuring the optical properties – the scattering coefficient s and anisotropy factor g – from OCT data by ...
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    5. The effect of wavelength on optical properties extracted from images of engineered tissue

      The effect of wavelength on optical properties extracted from images of engineered tissue
      Optical imaging modalities such as confocal microscopy and optical coherence tomography (OCT) are emerging as appealing methods for non-destructive evaluation of engineered tissues. The information offered by such optical imaging methods depends on the wavelength vis-á-vis the optical scattering properties of the sample. These properties affect many factors critical to image analysis in a nonlinear and nontrivial manner. Thus, we sought to characterize the effect wavelength has on the optical ...
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    6. Evaluating optical properties of isolated biological scatterers from confocal and low-coherence images

      In biomedical optics applications, the scattering of light by biological tissue is typically mimicked by embedding microparticles such as polystyrene microspheres or TiO within a non-scattering matrix. Such particles are well structured and give rise to uniform optical scattering properties. However ... [Proc. SPIE Int. Soc. Opt. Eng. 6870, 68700G (2008)] published Fri Feb 15, 2008.
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    7. Measuring tissue optical properties in vivo using reflectance-mode confocal microscopy and OCT

      The ability to separately measure the scattering coefficient ([mu] [cm]) and the anisotropy (g) is difficult, especially when measuring an in vivo site that can not be excised for bench-top measurements. The scattering properties ([mu] and g) can characterize the ultrastructure of a biological tissu ... [Proc. SPIE Int. Soc. Opt. Eng. 6864, 68640B (2008)] published Fri Feb 15, 2008.
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    8. Optically characterizing vascular tissue constructs made with soluble versus homogenized collagen

      The ability of optical imaging techniques such as optical coherence tomography (OCT) to non-destructively characterize tissue-engineered constructs has generated enormous interest recently. We are testing the hypothesis that OCT data can be used to characterize the cellularity of collagen-based vasc ... [Proc. SPIE Int. Soc. Opt. Eng. 6858, 68580E (2008)] published Wed Feb 6, 2008.
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  2. About David Levitz

    David Levitz

    David Levitz is the founder and chief technical officer of MobileOCT. Dr. Levitz got a Bachelor’s degree in biomedical engineering/optics from the University of Rochester (Rochester, NY, USA) in 2002. He then spent 3 years working with Risø National Laboratory (Roskilde, Denmark), and Lund University (Lund, Sweden) developing an image-processing algorithm to measure optical scattering properties from optical coherence tomography (OCT) images. Using this method, Dr. Levitz identified differences between normal and atherosclerotic arterial tissues. Dr. Levitz’s Master’s project was accepted into “Optics in 2004” issue of Optics and Photonics News, highlighting a key contribution to the field of biomedical optics that year. Following his years in Scandinavia, Dr. Levitz joined a leading research group in biomedical optics at Oregon Health & Science University, where he refined the method developed in earlier work and found a relationship between enzymatic matrix remodeling in collagen gels and its scattering properties, which could be measured non-invasively. Dr. Levitz was awarded a Whitaker scholarship for a postdoctoral fellowship in Israel.