1. University of Texas Health Science Center

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    1. Mentioned In 46 Articles

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

      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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    3. Agreement between Gonioscopic Examination and Swept Source Fourier Domain Anterior Segment Optical Coherence Tomography Imaging

      Agreement between Gonioscopic Examination and Swept Source Fourier Domain Anterior Segment Optical Coherence Tomography Imaging
      Purpose . To evaluate interobserver, intervisit, and interinstrument agreements for gonioscopy and Fourier domain anterior segment optical coherence tomography (FD ASOCT) for classifying open and narrow angle eyes. Methods . Eighty-six eyes with open or narrow anterior chamber angles were included. The superior angle was classified open or narrow by 2 of 5 glaucoma specialists using gonioscopy and imaged by FD ASOCT in the dark. The superior angle of each FD ASOCT ...
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    4. Diagnosis of Thin-Capped Fibroatheromas in Intravascular Optical Coherence Tomography Images Effects of Light Scattering

      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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    5. Comparison of Newer IOL Power Calculation Methods for Eyes With Previous Radial Keratotomy

      Comparison of Newer IOL Power Calculation Methods for Eyes With Previous Radial Keratotomy
      Purpose : To evaluate the accuracy of the optical coherence tomographybased (OCT formula) and Barrett True K (True K) intraocular lens (IOL) calculation formulas in eyes with previous radial keratotomy (RK). Methods : In 95 eyes of 65 patients, using the actual refraction following cataract surgery as target refraction, the predicted IOL power for each method was calculated. The IOL prediction error (PE) was obtained by subtracting the predicted IOL power from ...
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    6. Establishing Age-Adjusted Reference Ranges for Iris-Related Parameters in Open Angle Eyes with Anterior Segment Optical Coherence Tomography

      Establishing Age-Adjusted Reference Ranges for Iris-Related Parameters in Open Angle Eyes with Anterior Segment Optical Coherence Tomography
      ...l Science at The University of Texas Health Science Center at Houston (UTHealth) McGovern Medical School. The University of Texas Health Science Center Committee for the Protection of Human Subjects determined that this ...
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    7. Fourier optics analysis of phase-mask-based path-length-multiplexed optical coherence tomography

      Fourier optics analysis of phase-mask-based path-length-multiplexed optical coherence tomography
      Imaging below fingertip surface might be a useful alternative to the traditional fingerprint sensing since the internal finger features are more reliable than the external ones. One of the most promising subsurface imaging technique is optical coherence tomography (OCT), which, however, has to acquire 3-D data even when a single en face image is required. This makes OCT inherently slow for en face imaging and produce unnecessary large data sets ...
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    8. Detection of plaque structure and composition using OCT combined with two-photon luminescence (TPL) imaging

      Detection of plaque structure and composition using OCT combined with two-photon luminescence (TPL) imaging
      Background and Objectives Atherosclerosis and plaque rupture leads to myocardial infarction and stroke. A novel hybrid optical coherence tomography (OCT) and two-photon luminescence (TPL) fiber-based imaging system was developed to characterize tissue constituents in the context of plaque morphology. Study Design/Materials and Methods Ex vivo coronary arteries (34 regions of interest) from three human hearts with atherosclerotic plaques were examined by OCTTPL imaging. Histological sections (4m in thickness) were ...
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    9. Macrophages and intravascular optical coherence tomography bright spots: a quantitative study

      Macrophages and intravascular optical coherence tomography bright spots: a quantitative study
      Objectives We hypothesized that bright spots in intravascular optical coherence tomography (IVOCT) images may originate by co-localization of plaque materials of differing indices of refraction (IR). To quantitatively identify bright spots, we developed an algorithm that accounts for factors including tissue depth, distance from light source, and signal-to-noise ratio. We used this algorithm to perform a bright spot analysis of IVOCT images, and compared these results with histologic examination of ...
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    10. Feature of the Week 10/19/14: Automated Classification of Optical Coherence Tomography Images for the Diagnosis of Oral Malignancy in the Hamster Cheek Pouch

      Feature of the Week 10/19/14: Automated Classification of Optical Coherence Tomography Images for the Diagnosis of Oral Malignancy in the Hamster Cheek Pouch
      Most studies evaluating the potential of optical coherence tomography (OCT) for the diagnosis of oral cancer are based on visual assessment of OCT B-scans by trained experts. Human interpretation of the large pool of data acquired by modern high-speed OCT systems, however, can be cumbersome and extremely time consuming. Development of image analysis methods for automated and quantitative OCT image analysis could therefore facilitate the evaluation of such a large ...
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  2. About University of Texas Health Science Center

    University of Texas Health Science Center

    University of Texas Health Science Center at San Antonio serves San Antonio and the 50,000 square-mile area of South Texas. It extends to campuses in the metropolitan border communities of Laredo and the Rio Grande Valley. More than 2,800 students a year train in an environment that involves more than 100 affiliated hospitals, clinics and health care facilities in South Texas.