1. Kirill V. Larin

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    1. Mentioned In 154 Articles

    2. Evaluating biomechanical properties of murine embryos using Brillouin microscopy and optical coherence tomography

      Explore SPIE Digital Library Developmental Biology
      Evaluating biomechanical properties of murine embryos using Brillouin microscopy and optical coherence tomography
      Embryogenesis is regulated by numerous changes in mechanical properties of the cellular microenvironment. Thus, studying embryonic mechanophysiology can provide a more thorough perspective of embryonic development, potentially improving early detection of congenital abnormalities as well as evaluating and developing therapeutic interventions. A number of methods and techniques have been used to study cellular biomechanical properties during embryogenesis. While some of these techniques are invasive or involve the use of external ...
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      Mentions: University of Maryland Kirill V. Larin University of Houston

    3. Optical coherence elastography to assess biomechanics and detect progression of ocular and other tissues degenerative diseases

      Explore uspto.gov Ophthalmology , Patents
      Optical coherence elastography to assess biomechanics and detect progression of ocular and other tissues degenerative diseases
      An excitation force (internal or external) and phase-sensitive optical coherence elastography (OCE) system, used in conjunction with a data analyzing algorithm, is capable of measuring and quantifying biomechanical parameters of tissues in situ and in vivo. The method was approbated and demonstrated on an example of the system that combines a pulsed ultrasound system capable of producing an acoustic radiation force on the crystalline lens surface and a phase-sensitive optical ...
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      Mentions: Kirill V. Larin University of Houston Salavat Aglyamov

    5. Quantifying the effects of UV-A/riboflavin crosslinking on the elastic anisotropy and hysteresis of the porcine cornea by noncontact optical coherence elastography

      Explore Conference Proceedings Ophthalmology
      Quantifying the effects of UV-A/riboflavin crosslinking on the elastic anisotropy and hysteresis of the porcine cornea by noncontact optical coherence elastography
      The collagen fibril orientation of the cornea can provide critical information about cornea tissue health because diseases such as keratoconus and therapeutic interventions such as UV-A/riboflavin corneal collagen crosslinking (CXL) can alter the ultrastructural arrangement of collagen fibrils. Here, we quantify the elastic anisotropy and hysteresis of in situ porcine corneas as a function of intraocular pressure (IOP) with noncontact optical coherence elastography. Moreover, the effects of UV-A riboflavin ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Alabama

    6. Applanation optical coherence elastography: noncontact measurement of intraocular pressure, corneal biomechanical properties, and corneal geometry with a single instrument

      Explore SPIE | Journal Ophthalmology
      Applanation optical coherence elastography: noncontact measurement of intraocular pressure, corneal biomechanical properties, and corneal geometry with a single instrument
      Current clinical tools provide critical information about ocular health such as intraocular pressure (IOP). However, they lack the ability to quantify tissue material properties, which are potent markers for ocular tissue health and integrity. We describe a single instrument to measure the eye-globe IOP, quantify corneal biomechanical properties, and measure corneal geometry with a technique termed applanation optical coherence elastography (Appl-OCE). An ultrafast OCT system enabled visualization of corneal dynamics ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Houston

    7. Evaluation of dermal fillers with noncontact optical coherence elastography

      Explore Conference Proceedings Dentistry
      Evaluation of dermal fillers with noncontact optical coherence elastography
      Over 2 million dermal filler procedures are performed each year in the USA alone, and this figure is only expected to increase as the aging population continues to grow. Dermal filler treatments can last from a few months to years depending on the type of filler and its placement. Although adverse reactions are rare, they can be quite severe due to ischemic events and filler migration. Previously, techniques such as ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Houston

    8. A dual-modality optical coherence tomography and selective plane illumination microscopy system for mouse embryonic imaging

      Explore Conference Proceedings Developmental Biology
      A dual-modality optical coherence tomography and selective plane illumination microscopy system for mouse embryonic imaging
      Both optical coherence tomography (OCT) and selective plane illumination microscopy (SPIM) are frequently used in mouse embryonic research for high-resolution three-dimensional imaging. However, each of these imaging methods provide a unique and independent advantage: SPIM provides morpho-functional information through immunofluorescence and OCT provides a method for whole-embryo 3D imaging. In this study, we have combined rotational imaging OCT and SPIM into a single, dual-modality device to image E9.5 mouse ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Houston

    9. Live dynamic analysis of the developing cardiovascular system in mice

      Explore Conference Proceedings Cardiology , Developmental Biology
      Live dynamic analysis of the developing cardiovascular system in mice
      The study of the developing cardiovascular system in mice is important for understanding human cardiogenesis and congenital heart defects. Our research focuses on imaging early development in the mouse embryo to specifically understand cardiovascular development under the regulation of dynamic factors like contractile force and blood flow using optical coherence tomography (OCT). We have previously developed an OCT based approach that combines static embryo culture and advanced image processing with ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Houston

    10. Optical coherence tomography for image-guided dermal filler injection and biomechanical evaluation

      Explore Conference Proceedings Dermatology
      Optical coherence tomography for image-guided dermal filler injection and biomechanical evaluation
      Dermal fillers are a very popular anti-aging treatment with estimated sales in the billions of dollars and millions of procedures performed. As the aging population continues to grow, these figures are only expected to increase. Dermal fillers have various compositions depending on their intended application. Reactions to dermal fillers can be severe, such as ischemic events and filler migration to the eyes. However, these adverse reactions are rare. Nevertheless, the ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Houston

    11. Ultra-fast line-field low coherence holographic elastography using spatial phase shifting

      Explore OSA | OSA Publishing
      Ultra-fast line-field low coherence holographic elastography using spatial phase shifting
      Optical coherence elastography (OCE) is an emerging technique for quantifying tissue biomechanical properties. Generally, OCE relies on point-by-point scanning. However, long acquisition times make point-by-point scanning unfeasible for clinical use. Here we demonstrate a noncontact single shot line-field low coherence holography system utilizing an automatic Hilbert transform analysis based on a spatial phase shifting technique. Spatio-temporal maps of elastic wave propagation were acquired with only one air-pulse excitation and used ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Houston

    12. Optical coherence elastography – OCT at work in tissue biomechanics [Invited]

      Explore OSA | OSA Publishing
      Optical coherence elastography – OCT at work in tissue biomechanics [Invited]
      Optical coherence elastography (OCE), as the use of OCT to perform elastography has come to be known, began in 1998, around ten years after the rest of the field of elastography the use of imaging to deduce mechanical properties of tissues. After a slow start, the maturation of OCT technology in the early to mid 2000s has underpinned a recent acceleration in the field. With more than 20 papers published ...
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      Mentions: Kirill V. Larin University of Houston David D. Sampson

    13. The University of Houston Receives NIH Grant for Optical Coherence Tomography to Study Effect of Poly-Drug Exposure on Fetal Brain Development

      Explore Optical Coherence Tomography News Developmental Biology , Neurology , Funding
      The University of Houston Receives NIH Grant for Optical Coherence Tomography to Study Effect of Poly-Drug Exposure on Fetal Brain Development
      The University of Houston Receives a 2017 NIH Grant for $311,241 for Optical Coherence Tomography to Study Effect of Poly-Drug Exposure on Fetal Brain Development. The principal investigator is Kirll Larin. The program began in 2016 and ends in 2020. Below is a summary of the proposed work. The overall objective of this study is to develop an optical coherence tomography (OCT) based high- resolution mouse embryonic brain imaging ...
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      Mentions: National Institutes of Health Kirill V. Larin University of Houston

    14. Dynamic imaging and quantitative analysis of cranial neural tube closure in the mouse embryo using optical coherence tomography

      Explore OSA | OSA Publishing Developmental Biology , Neurology
      Dynamic imaging and quantitative analysis of cranial neural tube closure in the mouse embryo using optical coherence tomography
      Neural tube closure is a critical feature of central nervous system morphogenesis during embryonic development. Failure of this process leads to neural tube defects, one of the most common forms of human congenital defects. Although molecular and genetic studies in model organisms have provided insights into the genes and proteins that are required for normal neural tube development, complications associated with live imaging of neural tube closure in mammals limit ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Houston

    15. Assessing the effects of riboflavin/UV-A crosslinking on porcine corneal mechanical anisotropy with optical coherence elastography

      Explore OSA | OSA Publishing Ophthalmology
      Assessing the effects of riboflavin/UV-A crosslinking on porcine corneal mechanical anisotropy with optical coherence elastography
      In this work we utilize optical coherence elastography (OCE) to assess the effects of UV-A/riboflavin corneal collagen crosslinking (CXL) on the mechanical anisotropy of in situ porcine corneas at various intraocular pressures (IOP). There was a distinct meridian of increased Youngs modulus in all samples, and the mechanical anisotropy increased as a function of IOP and also after CXL. The presented noncontact OCE technique was able to quantify the ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Alabama

    16. Optical Modalities for Embryonic Imaging

      Explore osa-opn.org Developmental Biology
      Optical Modalities for Embryonic Imaging
      tudies of disease etiology often rely on the murine (mouse) model, which provides valuable genotypic information. Yet associated phenotypic information from murine embryos is often lacking. Of the various techniques that have been proposed for imaging such embryos, optical modalities may provide the best compromise among speed, penetration depth and resolution. This year, we developed approaches to improve embryonic imaging with optical coherence tomography (OCT), 1 and also provided a ...
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      Mentions: Baylor College of Medicine Kirill V. Larin University of Houston
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  4. About Kirill V. Larin

    Kirill V. Larin

    Kirill V. Larin is Assistant Professor of Biomedical Engineering at the University of Houston, Houston, TX. His research interests focuses on development and application of OCT for noninvasive and nondestructive imaging and diagnostics of tissues and cells. Larin has authored more than 40 peer-reviewed journal publications and chapters in two textbooks on Biomedical Optics. He is recipient of Boris Yeltsin Presidential Award, Wallace Coulter Young Investigator Translation Award, Office of Naval Research Young Investigator Award, and Outstanding Young Investigator Award from the Houston Society for Engineers in Medicine and Biology.

  5. Related Topics

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    2. Live imaging of blood flow in mammalian embryos using Doppler swept-source optical coherence tomography
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    4. Dynamic OCT measurements of corneal biomechanical properties after UV cross-linking in the rabbit
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  6. Quotes

    1. We are using OCT to image mouse and rat embryos, looking at video taken about seven days after conception, out of a 20-day typical mammalian pregnancy...this way, we are able to capture video of the embryonic heart before it begins beating, and a day later we can see the heart beginning to form in the shape of a tube and see whether or not the chambers are contracting. Then, we begin to see blood distribution and the heart rate.
      In The Embryonic Heart: Imaging Life as it Happens - University of Houston Professor Captures Video of Heart Before it Begins to Beat (Video Snippet)
    2. Our primary objective is to develop noninvasive, early detection methods to diagnose various diseases.
      In U. Houston professor expands Optics research