1. Kirill V. Larin

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    1. Mentioned In 133 Articles

    2. Live four-dimensional optical coherence tomography reveals embryonic cardiac phenotype in mouse mutant

      Live four-dimensional optical coherence tomography reveals embryonic cardiac phenotype in mouse mutant
      Efficient phenotyping of developmental defects in model organisms is critical for understanding the genetic specification of normal development and congenital abnormalities in humans. We previously reported that optical coherence tomography (OCT) combined with live embryo culture is a valuable tool for mouse embryo imaging and four-dimensional (4-D) cardiodynamic analysis; however, its capability for analysis of mouse mutants with cardiac phenotypes has not been previously explored. Here, we report 4-D (three-dimensional ...
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    3. Optical coherence tomography for embryonic imaging: a review

      Optical coherence tomography for embryonic imaging: a review
      Embryogenesis is a highly complex and dynamic process, and its visualization is crucial for understanding basic physiological processes during development and for identifying and assessing possible defects, malformations, and diseases. While traditional imaging modalities, such as ultrasound biomicroscopy, micro-magnetic resonance imaging, and micro-computed tomography, have long been adapted for embryonic imaging, these techniques generally have limitations in their speed, spatial resolution, and contrast to capture processes such as cardiodynamics during ...
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    4. Applicability, usability, and limitations of murine embryonic imaging with optical coherence tomography and optical projection tomography

      Applicability, usability, and limitations of murine embryonic imaging with optical coherence tomography and optical projection tomography
      ...4(4), 607–618 (2015). [CrossRef] [PubMed] C. Wu, N. Sudheendran, M. Singh, I. V. Larina, M. E. Dickinson, and K. V. Larin, “Rotational Imaging OCT for Full-Body Mouse Embryonic Imaging,” J. Biomed. Opt. 21, 026002 (2016)...
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    5. Rapid, noninvasive quantitation of skin disease in systemic sclerosis using optical coherence elastography

      Rapid, noninvasive quantitation of skin disease in systemic sclerosis using optical coherence elastography
      Systemic sclerosis (SSc) is a connective tissue disease that results in excessive accumulation of collagen in the skin and internal organs. Overall, SSc has a rare morbidity (276 cases per million adults in the United States), but has a 10-year survival rate of 55%. Currently, the modified Rodnan skin score (mRSS) is assessed by palpation on 17 sites on the body. However, the mRSS assessed score is subjective and may ...
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    6. Four-dimensional live imaging of hemodynamics in mammalian embryonic heart with Doppler optical coherence tomography

      Four-dimensional live imaging of hemodynamics in mammalian embryonic heart with Doppler optical coherence tomography
      Four-dimensional live hemodynamic imaging of the mouse embryonic heart at embryonic day 9.0 using Doppler optical coherence tomography, showing directional blood flows in the sinus venosus, primitive atrium, atrioventricular region and vitelline vein. Hemodynamic analysis of the mouse embryonic heart is essential for understanding the functional aspects of early cardiogenesis and advancing the research in congenital heart defects. However, high-resolution imaging of cardiac hemodynamics in mammalian models remains challenging ...
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    7. Magnetic force Optical Coherence Elastography at 1.5 million a-lines per second

      Magnetic force Optical Coherence Elastography at 1.5 million a-lines per second
      Optical Coherence Elastography (OCE) has been widely used to characterize tissue elasticity. In this paper we introduce a new excitation method using magnetic force to induce shear waves in phantoms and tissues. The shear waves were imaged using an Optical Coherence Tomography system with an A-scan rate of ~1.5 million a-lines per second and the speed of the waves were used to quantify elasticity of different concentrations of agar ...
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    8. Combined optical coherence tomography and optical coherence elastography for glomerulonephritis classification

      Combined optical coherence tomography and optical coherence elastography for glomerulonephritis classification
      Acute Glomerulonephritis caused by anti-glomerular basement membrane disease has a high mortality due to delayed diagnosis. Thus, an accurate and early diagnosis is critical for preserving renal function. Currently, blood, urine, and tissue-based diagnoses can be time consuming, while ultrasound and CT imaging have relatively low spatial resolution. Optical coherence tomography (OCT) is a noninvasive imaging technique that provides superior spatial resolution (micron scale) as compared to ultrasound and CT ...
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    9. Comparison of rotational imaging optical coherence tomography and selective plane illumination microscopy for embryonic study

      Comparison of rotational imaging optical coherence tomography and selective plane illumination microscopy for embryonic study
      The mouse is a common model for studying developmental diseases. Different optical techniques have been developed to investigate mouse embryos, but each has its own set of limitations and restrictions. In this study, we imaged the same E9.5 mouse embryo with rotational imaging Optical Coherence Tomography (RI-OCT) and Selective Plane Illumination Microscopy (SPIM), and compared the two techniques. Results demonstrate that both methods can provide images with micrometer-scale spatial ...
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    10. Live 4D optical coherence tomography for early embryonic mouse cardiac phenotyping

      Live 4D optical coherence tomography for early embryonic mouse cardiac phenotyping
      Studying embryonic mouse development is important for our understanding of normal human embryogenesis and the underlying causes of congenital defects. Our research focuses on imaging early development in the mouse embryo to specifically understand cardiovascular development using optical coherence tomography (OCT). We have previously developed imaging approaches that combine static embryo culture, OCT imaging and advanced image processing to visualize the whole live mouse embryos and obtain 4D (3D+time ...
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    11. A comparison study of Riboflavin/UV-A and Rose-Bengal/Green light cross-linking of the rabbit corneas using optical coherence elastography

      A comparison study of Riboflavin/UV-A and Rose-Bengal/Green light cross-linking of the rabbit corneas using optical coherence elastography
      The biomechanical properties of the cornea are critical factors which determine its health and subsequent visual acuity. Keratoconus is a structural degeneration of the cornea which can diminish vision quality. Riboflavin/UV-A corneal collagen cross-linking (UV-CXL) is an emerging treatment that increases the stiffness of the cornea and improves its ability to resist further degeneration. While UV-CXL has shown great promise for effective therapy of the keratoconus, there are concerns ...
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    12. Assessing the elasticity change of cataract lens with OCE

      Assessing the elasticity change of cataract lens with OCE
      Cataract is one of the most common degenerative diseases that causes blindness. Careful quantification of lens biomechanical properties can greatly assist in early detection of the disease as well as personalization of treatment procedures. In this study, we utilize a phase-sensitive optical coherence elastography (OCE) system to assess the effects of the cold cataract on the biomechanical properties of porcine crystalline lens in vitro. Relaxation rates of air puff induced ...
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    13. Optical Coherence Tomography as a Tool for Real-Time Visual Feedback and Biomechanical Assessment of Dermal Filler Injections: Preliminary Results in a Pig Skin Model

      Optical Coherence Tomography as a Tool for Real-Time Visual Feedback and Biomechanical Assessment of Dermal Filler Injections: Preliminary Results in a Pig Skin Model
      Dermal fillers are a popular anti-aging treatment with over 2 million procedures performed in the USA in 2013, and this figure will only increase as the aging population grows. Most FDA approved fillers last 3 to 24 months, depending on composition and injection site. There are numerous FDA-approved dermal fillers of varying compositions, with the most common being hyaluronic acid. Various fillers have optimal uses in specific skin layers corresponding ...
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    14. Postdoctoral Position at the University of Houston in Imaging Processing for Optical Coherence Tomography and Optical Coherence Elastography

      Postdoctoral Position at the University of Houston in Imaging Processing for Optical Coherence Tomography  and Optical Coherence Elastography
      ...r objectives), curriculum vitae (including GPAs), and names and contact information for three references to: Kirill Larin, Ph.D., Fellow of OSA and SPIE Professor Department of Biomedical Engineering University of Hou...
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    15. Assessing mechanical properties of tissue phantoms with non-contact optical coherence elastography and Michelson interferometric vibrometry

      Assessing mechanical properties of tissue phantoms with non-contact optical coherence elastography and Michelson interferometric vibrometry
      Purpose : Elastography is an emerging method for detecting the pathological changes in tissue biomechanical properties caused by various diseases. In this study, we have compared two methods of noncontact optical elastography for quantifying Youngs modulus of tissue-mimicking agar phantoms of various concentrations: a laser Michelson interferometric vibrometer and a phase-stabilized swept source optical coherence elastography system. Methods : The elasticity of the phantoms was estimated from the velocity of air-pulse induced ...
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    16. Rotational imaging optical coherence tomography for full-body mouse embryonic imaging

      Rotational imaging optical coherence tomography for full-body mouse embryonic imaging
      Optical coherence tomography (OCT) has been widely used to study mammalian embryonic development with the advantages of high spatial and temporal resolutions and without the need for any contrast enhancement probes. However, the limited imaging depth of traditional OCT might prohibit visualization of the full embryonic body. To overcome this limitation, we have developed a new methodology to enhance the imaging range of OCT in embryonic day (E) 9.5 ...
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  2. 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.

  3. 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