1. University of Texas at Austin

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    1. Mentioned In 131 Articles

    2. Understanding and improving optical coherence tomography imaging depth in selective laser sintering nylon 12 parts and powder

      Explore SPIE Digital Library NDE/NDT
      Understanding and improving optical coherence tomography imaging depth in selective laser sintering nylon 12 parts and powder
      Optical coherence tomography (OCT) has shown promise as a process sensor in selective laser sintering (SLS) due to its ability to yield depth-resolved data not attainable with conventional sensors. However, OCT images of nylon 12 powder and nylon 12 components fabricated via SLS contain artifacts that have not been previously investigated in the literature. A better understanding of light interactions with SLS powder and components is foundational for further research ...
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      Mentions: Thomas E. Milner University of Texas at Austin

    3. In situ process monitoring in selective laser sintering using optical coherence tomography

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      In situ process monitoring in selective laser sintering using optical coherence tomography
      Selective laser sintering (SLS) is an efficient process in additive manufacturing that enables rapid part production from computer-based designs. However, SLS is limited by its notable lack ofin situprocess monitoring when compared with other manufacturing processes. We report the incorporation of optical coherence tomography (OCT) into an SLS system in detail and demonstrate access to surface and subsurface features. Video frame rate cross-sectional imaging reveals areas of sintering uniformity and ...
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      Mentions: Thomas E. Milner University of Texas at Austin

    4. Impact of Ticagrelor and Aspirin versus Clopidogrel and Aspirin in Symptomatic Patients with Peripheral Arterial Disease: Thrombus Burden Assessed by Optical Coherence Tomography

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      Impact of Ticagrelor and Aspirin versus Clopidogrel and Aspirin in Symptomatic Patients with Peripheral Arterial Disease: Thrombus Burden Assessed by Optical Coherence Tomography
      Purpose To compare OCT identified white thrombus decline, neointimal hyperplasia and clinical outcomes of patients treated with ticagrelor plus aspirin with those patients treated with clopidogrel plus aspirin after peripheral interventions. Background Ticagrelor is a potent platelet inhibitor. In patients with coronary artery disease, ticagrelor and aspirin demonstrated reduced rates of stent thrombosis, compared to aspirin and clopidogrel. The clinical importance of potent antiplatelet inhibition after peripheral endovascular interventions is ...
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      Mentions: University of Alabama University of Texas at Austin University of Texas Health Science Center

    5. Advances in Brain Tumor Surgery for Glioblastoma in Adults

      Explore MDPI Open Access Journals Platform Neurology , Oncology
      Advances in Brain Tumor Surgery for Glioblastoma in Adults
      Glioblastoma (GBM) is the most common primary intracranial neoplasia, and is characterized by its extremely poor prognosis. Despite maximum surgery, chemotherapy, and radiation, the histological heterogeneity of GBM makes total eradication impossible, due to residual cancer cells invading the parenchyma, which is not otherwise seen in radiographic images. Even with gross total resection, the heterogeneity and the dormant nature of brain tumor initiating cells allow for therapeutic evasion, contributing to ...
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      Mentions: University of Florida University of Texas at Austin

    7. Optical coherence tomography image-guided smart laser knife for surgery

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      Optical coherence tomography image-guided smart laser knife for surgery
      Background and Objective Surgical oncology can benefit from specialized tools that enhance imaging and enable precise cutting and removal of tissue without damage to adjacent structures. The combination of high-resolution, fast optical coherence tomography (OCT) co-aligned with a nanosecond pulsed thulium (Tm) laser offers advantages over conventional surgical laser systems. Tm lasers provide superior beam quality, high volumetric tissue removal rates with minimal residual thermal footprint in tissue, enabling a ...
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      Mentions: Thomas E. Milner University of Texas at Austin

    8. Apparatus and methods for identifying and evaluating bright spot indications observed through optical coherence tomography

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      Apparatus and methods for identifying and evaluating bright spot indications observed through optical coherence tomography
      Exemplary embodiments of the present disclosure include apparatus and methods for identifying bright spot indications observed through optical coherence tomography. The indications can be evaluated, for example, to link risk factors or other conditions to clinically relevant outcomes
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      Mentions: Thomas E. Milner Marc D. Feldman University of Texas at Austin

    10. 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

    11. Scattering angle resolved optical coherence tomography for in vivo murine retinal imaging

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      Scattering angle resolved optical coherence tomography for in vivo murine retinal imaging
      Optical coherence tomography (OCT) retinal imaging contributes to understanding central nervous system (CNS) diseases because the eye is an anatomical window to the brain with direct optical access to nonmylenated retinal ganglion cells. However, many CNS diseases are associated with neuronal changes beyond the resolution of standard OCT retinal imaging systems. Though studies have shown the utility of scattering angle resolved (SAR) OCT for particle sizing and detecting disease states ...
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      Mentions: Thomas E. Milner University of Texas at Austin

    12. 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

    13. High-speed and high-sensitivity parallel spectral-domain optical coherence tomography using a supercontinuum light source

      Explore OSA | OSA Publishing Broadband Sources
      High-speed and high-sensitivity parallel spectral-domain optical coherence tomography using a supercontinuum light source
      The three most important metrics in optical coherence tomography (OCT) are resolution, speed, and sensitivity. Because there is a complex interplay between these metrics, no previous work has obtained the best performance in all three metrics simultaneously. We demonstrate that a high-power supercontinuum source, in combination with parallel spectral-domain OCT, achieves an unparalleled combination of resolution, speed, and sensitivity. This system captures cross-sectional images spanning 4 mm 0.5 mm ...
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      Mentions: University of Texas at Austin Amy L. Oldenburg University of North Carolina

    14. Quantifying tissue viscoelasticity using optical coherence elastography and the Rayleigh wave model

      Explore SPIE | Journal
      Quantifying tissue viscoelasticity using optical coherence elastography and the Rayleigh wave model
      This study demonstrates the feasibility of using the Rayleigh wave model (RWM) in combination with optical coherence elastography (OCE) technique to assess the viscoelasticity of soft tissues. Dispersion curves calculated from the spectral decomposition of OCE-measured air-pulse induced elastic waves were used to quantify the viscoelasticity of samples using the RWM. Validation studies were first conducted on 10% gelatin phantoms with different concentrations of oil. The results showed that the ...
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      Mentions: Kirill V. Larin University of Houston University of Texas at Austin

    15. Polarization-sensitive spectral interferometry as a function of depth for tissue identification

      Explore uspto.gov Patents
      Polarization-sensitive spectral interferometry as a function of depth for tissue identification
      A polarization sensitive spectral interferometer apparatus and method for analyzing a sample by optical energy reflected from the sample. The polarization sensitive spectral interferometer apparatus and method determines polarization properties of the sample by optical energy reflected from the sample. The method for analyzing a sample with a spectral interferometer identifies the tissue type of the sample by the polarization properties as a function of depth from the sample.
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      Mentions: Thomas E. Milner University of Texas at Austin

    16. Diagnosis of Thin-Capped Fibroatheromas in Intravascular Optical Coherence Tomography Images Effects of Light Scattering

      Explore Circulation Cardiology
      Diagnosis of Thin-Capped Fibroatheromas in Intravascular Optical Coherence Tomography Images Effects of Light Scattering
      Background Intravascular optical coherence tomography (IVOCT) images are recorded by detecting light backscattered within coronary arteries. We hypothesize that nonthin-capped fibroatheroma (TCFA) causes may scatter light to create the false appearance of IVOCT TCFA. Methods and Results Ten human cadaver hearts were imaged with IVOCT (n=14 coronary arteries). IVOCT and histological TCFA images were coregistered and compared. Of 21 IVOCT TCFAs (fibrous cap 65 m, lipid arc 1 quadrant ...
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      Mentions: Massachusetts General Hospital Ik-Kyung Jang Thomas E. Milner
    17. 1-15 of 131 1 2 3 4 5 6 7 8 9 »
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  4. About University of Texas at Austin

    University of Texas at Austin

    The University of Texas at Austin is the largest institution of The University of Texas System. The University of Texas at Austin is a major research university home to more than 48,000 students, 2,700 faculty and 19,000 staff members. The University of Texas Department of Biomedical Engineering is a joint venture among the Department of Biomedical Engineering at The University of Texas at Austin, The University of Texas M. D. Anderson Cancer Center and the University of Texas Health Science Center at Houston. It was established as a joint department spanning the three institutions on Sept. 1, 2006.

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