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https://www.readbyqxmd.com/read/28226606/applications-of-ubms-and-i-vectors-in-eeg-subject-verification
#1
Christian Ward, Joseph Picone, Iyad Obeid, Christian Ward, Joseph Picone, Iyad Obeid, Christian Ward, Iyad Obeid, Joseph Picone
The processing of electroencephalograms (EEGs) is a growing field where mature speech processing techniques are able to rapidly progress development and understanding of the associated neuroscience. I-vectors and Joint Factor Analysis (JFA), along with their foundational universal background models (UBMs) have progressed to a level of understanding that makes them prime for transition to the EEG community. To prove the capability of these techniques they are tested against two contrasting EEG data sets, PhysioNet's EEG Motor Movement/Imagery Dataset and the Temple University Hospital EEG Corpus, to highlight the effectiveness of the techniques with minimal domain knowledge modifications...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220849/the-long-term-anterior-segment-configuration-after-pediatric-cataract-surgery-and-the-association-with-secondary-glaucoma
#2
Ding Chen, Xian-Hui Gong, He Xie, Xue-Ning Zhu, Jin Li, Yun-E Zhao
Secondary glaucoma constitutes major sight-threatening complication of pediatric cataract surgery, yet the etiology remains unclear. The purpose of this study was to investigate the long-term anterior segment configuration and the association with secondary glaucoma in pediatric pseudophakia. Ultrasound biomicroscopy (UBM) was performed on 40 eyes of 26 children underwent pediatric cataract surgery and intraocular lens (IOL) implantation. The anterior chamber depth (ACD), angle-opening distance at 500 μm (AOD500), trabecular-iris angle (TIA), central corneal thickness (CCT), structural abnormities, IOL position, IOP, and incidence of glaucoma were evaluated...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28203193/recurrent-uveal-effusion-after-laser-iridotomy
#3
Hiroshi Sakai, Michiko Yonahara, Miyako Sakai
A 59-year-old woman was seen by an ophthalmologist for blurred vision, ocular pain, headache, and nausea. She was diagnosed with acute primary angle closure (APAC) and successfully treated with medications. Using ultrasound biomicroscopy (UBM), engorged episcleral vein was observed and small uveal effusion was diagnosed after laser peripheral iridotomy (LPI). The uveal effusion disappeared and was again diagnosed by UBM together with anterior segment inflammation with ocular pain. Iritis caused by LPI after APAC might be a cause of uveal effusion in this specific case...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28123247/anterior-segment-changes-on-ultrasound-biomicroscopy-after-intravitreal-anti-vascular-endothelial-growth-factor-injection
#4
H S Trehan, Jaya Kaushik, Atul Rangi, A S Parihar, P Vashisht, J K S Parihar
BACKGROUND: Intravitreal injections are standard of care today and have the potential to change the anatomy of the anterior segment of the eye. This research was undertaken to evaluate the changes in anterior segment anatomy after intravitreal anti vascular endothelial growth factor (anti VEGF) injections. METHODS: We conducted a prospective interventional case series at a quaternary care center where patients undergoing intravitreal injection had pre and post injection ultrasound biomicroscopy (UBM) and intraocular pressure (IOP) measurement after intravitreal anti VEGF injection of 0...
January 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28112133/comparison-of-deep-sclerokeratodissection-a-new-variant-of-nonpenetrating-glaucoma-surgery-with-deep-sclerectomy
#5
Anna Sophie Mursch-Edlmayr, Daniel S Mojon, Michael Ring, Peter Laubichler, Nikolaus Luft, Siegfried Georg Priglinger
PURPOSE: The aim of this study was to evaluate the safety and efficacy of deep sclerokeratodissection (DSKD), a new nonpenetrating technique in glaucoma surgery. MATERIALS AND METHODS: Retrospective comparison between patients treated with DSKS or deep sclerectomy (DS) between 2013 and 2014. In DSKD, the first and only flap is dissected directly into clear cornea with unroofing Schlemm's canal. Beside routine clinical follow-up (visual acuity, intraocular pressure [IOP] readings, slit lamp and fundus examination), postoperative ultrasound biomicroscopy (UBM) investigation and quality of life (QoL) assessment were performed...
December 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28108900/a-case-study-of-ciliary-detachment-with-primary-pulmonary-hypertension
#6
Zhuolei Feng, Li Dong, Junxian Cao, Jie Bai, Ming-Ming Yang, Yi Zheng, Daohong Lin
PURPOSE: To introduce a case of ciliary detachment with primary pulmonary hypertension (PPH). METHODS: The clinical manifestations of a case of ciliary detachment with PPH were addressed by comprehensive examination including ultrasound biological microscope (UBM), intraocular pressure, color fundus photographs, fluorescence fundus angiography (FFA). In addition, echocardiography is used to measure primary pulmonary pressure. RESULTS: When the echocardiography displayed a systolic pulmonary arterial pressure of 106 mmHg, UBM exhibited ciliochoroidal detachment, as well as peripheral retinal effusion and non-perfusion areas in FFA...
January 21, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28091712/two-cases-of-female-urethral-reconstruction-with-acellular-porcine-urinary-bladder-matrix
#7
Sana Ansari, Mickey Karram
INTRODUCTION AND HYPOTHESIS: Female urethral reconstruction via the traditional routes can be limiting for various reasons. Current literature on the use of acellular biologic grafts derived from viscera for female urethral reconstruction is limited. We present two cases of women with complete loss of their posterior urethra presenting for urethral reconstruction. METHODS: Two cases of urethral reconstruction using acellular porcine urinary bladder matrix (UBM), along with labial fat pad transposition and biologic pubovaginal sling are presented...
January 13, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28089532/refining-health-risk-assessment-by-incorporating-site-specific-background-concentration-and-bioaccessibility-data-of-nickel-in-soil
#8
Mao-Sheng Zhong, Lin Jiang
Risk assessment of Nickel (Ni) in a brownfield site contaminated was refined by incorporating the site-specific background level (SSBL) derived using multiple lines of evidence technology and bioaccessibility measured by the Unified Bioaccessibility Method (UBM) and Inhalation Bioaccessibility Method (IBM). The results revealed that the SSBL was 80mg/kg, which was much higher than the general soil screening value (GSSL) (50mg/kg) and more than two times regional background level reported for Tianjing (33mg/kg)...
January 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28074538/ultrasound-biomicroscopy-and-tonometry-in-ophthalmologically-normal-pigeon-eyes
#9
Sangwan Park, Seonmi Kang, Jaegook Lim, Eunjin Park, Taekjin Nam, Seowoo Jeong, Kangmoon Seo
OBJECTIVE: To evaluate the feasibility of ultrasound biomicroscopy (UBM) and tonometry in pigeons and to provide biometric reference ranges for normal pigeon eyes. ANIMALS STUDIED: Ten pigeons (Columba livia var. domestica) with ophthalmologically normal eyes. PROCEDURES: Ophthalmic examinations, including slit-lamp biomicroscopy and tonometry, were performed to confirm that the eyes were normal. UBM was then performed on the left eye. On each obtained image, the ciliary cleft (CC) length, CC width, and CC area, and iridocorneal angle (ICA) were measured...
January 11, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28007115/comparison-of-stability-between-a-modular-intraocular-lens-system-and-a-single-piece-hydrophobic-acrylic-intraocular-lens
#10
Jeffrey R SooHoo, Stephen S Lane, Robert J Cionni, John P Berdahl, Glenn R Sussman, Malik Y Kahook
PURPOSE: To compare the movement of a modular intraocular lens (IOL) with that of a standard single-piece hydrophobic acrylic IOL in a human cadaver eye perfusion model. SETTING: Department of Ophthalmology, University of Colorado, Aurora, Colorado, USA. DESIGN: Experimental study. METHODS: Eight phakic human donor eyes of 4 patients had standard phacoemulsification with lens removal. One of 2 IOLs was then implanted in the capsular bag: a modular IOL (Harmoni) or a standard single-piece IOL (Acrysof SN60)...
December 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27993474/in-vitro-estimation-of-bioaccessibility-of-chlorinated-organophosphate-flame-retardants-in-indoor-dust-by-fasting-and-fed-physiologically-relevant-extraction-tests
#11
José Benito Quintana, María Rosende, Rosa Montes, Tania Rodríguez-Álvarez, Rosario Rodil, Rafael Cela, Manuel Miró
This paper reports the evaluation of in-vitro physiologically relevant extraction tests for ascertainment of the bioaccessible fractions of emerging flame retardants from indoor dust in the gastric and gastrointestinal compartments. Standardized bioaccessibility tests under both fasting (UBM-like test) and fed (FOREhST test) conditions simulating the macronutrient composition of an average child diet were harnessed for investigation of the oral bioaccessibility of chlorinated organophosphate esters, namely, tris(2-chloroethyl) phosphate (TCEP), tris(1-chloro-2-propyl) phosphate (TCPP) and tris(1,3-dichloro-2-propyl) phosphate (TDCP), in household and automobile cabin dust samples with varying concentration levels of contaminants...
December 16, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27979647/bioaccessibility-of-u-th-and-pb-in-solid-wastes-and-soils-from-an-abandoned-uranium-mine
#12
Michael Foulkes, Geoffrey Millward, Samuel Henderson, William Blake
Bioaccessible U, Th, Pb and the (238)U decay products (214)Pb and (210)Pb have been determined, using a modified Unified BARGE Method (UBM), in waste solids and soils from an abandoned uranium mine in South West England, UK. Maximum aqua regia extractable concentrations for U, Th and Pb were 16,200, 3.8 and 4750 μg g(-1), respectively. (238)U had highest activity concentrations near the mine shaft, where the decay products(214)Pb and (210)Pb had values of 235 and 180 Bq g(-1), respectively. UBM extractions gave mean gastro-intestinal bioaccessibility factors (BAFs) for U and Pb in the waste solids of 0...
December 12, 2016: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/27960582/ultrasound-biomicroscopy-in-pseudophakic-patients-with-unexplained-recurrent-hyphema-or-vitreous-hemorrhage
#13
Saba T Alniemi, Sejal R Amin, Luanne Sculley, Sophie J Bakri
PURPOSE: To describe IOL haptic with iris or ciliary body touch on ultrasound biomicroscopy (UBM) in pseudophakic patients with unexplained recurrent hyphema or vitreous hemorrhage. METHODS: Retrospective chart review of 10 patients who presented with unexplained recurrent hyphema and or vitreous hemorrhage. RESULTS: There were eight posterior chamber intraocular lenses (PCIOL) and two sulcus lenses. Four cases had a history of glaucoma; two cases which had a history of trabeculectomy were found to have some bridging vessels along the sclerostomy requiring argon laser gonioplasty...
December 14, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27846838/effects-of-shenlian-extract-on-experimental-atherosclerosis-in-apoe-deficient-mice-based-on-ultrasound-biomicroscopy
#14
Yan Guo, Xu-Cen Liu, Ya-Jie Wang, Qi Li, Qing Yang, Xiao-Gang Weng, Ying Chen, Wei-Yan Cai, Xiao-Xi Kan, Xi Chen, He-Fei Huang, Xiao-Xin Zhu, Yu-Jie Li
BACKGROUND: This study directly and dynamically investigated the effects of SL extract (i.e., a combination of Radix Salviae miltiorrhizae and Andrographis paniculata extract) on plaque progression in vivo by high resolution ultrasound biomicroscopy (UBM). METHODS: An atherosclerosis model was established by placing a perivascular collar on the right common carotid artery in apolipoprotein E-deficient (ApoE(-/-)) mice. Thickness, plaque area and local blood flow were observed by UBM, pathological changes were observed by histochemical staining, and lipid levels were measured by respective commercially available kits...
November 15, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27826065/image-features-of-lens-opacity-in-pediatric-cataracts-using-ultrasound-biomicroscopy
#15
Daoman Xiang, Lihong Chen, Lanxiang Hu, Shengfang Song, Wanhua Xie, Jingji Long
PURPOSE: To study lens opacity in pediatric cataract images captured using ultrasound biomicroscopy (UBM). METHODS: The medical records of patients operated on from September 2012 to October 2013 were reviewed retrospectively. Prior to surgery, patients were placed in the supine position under sedation with oral chloral hydrate for UBM imaging. Lens morphology was evaluated by UBM examination with a 50 MHz probe that was equipped with a water bag instead of the standard plastic shell...
December 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27815849/enrichment-and-oral-bioaccessibility-of-selected-trace-elements-in-fly-ash-derived-magnetic-components
#16
Anna Bourliva, Lambrini Papadopoulou, Elina Aidona, Konstantinos Simeonidis, George Vourlias, Eamonn Devlin, Yiannis Sanakis
The mineralogy, morphology, and chemical composition of magnetic fractions separated from fly ashes (FAs) originating from Greek lignite-burning power plants was investigated. The oral bioaccessibility of potentially harmful elements (PHEs) from the fly ash magnetic fractions (FAMFs) was also assessed using in vitro gastrointestinal extraction (BARGE Unified Bioaccessibility Method, UBM). The FAMFs isolated were in the range 4.6-18.4%, and their mass specific magnetic susceptibility ranged from 1138 × 10(-8) to 1682 × 10(-8) m(3)/kg...
November 4, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27800176/anterior-segment-imaging-in-ocular-surface-squamous-neoplasia
#17
REVIEW
Sally S Ong, Gargi K Vora, Preeya K Gupta
Recent advances in anterior segment imaging have transformed the way ocular surface squamous neoplasia (OSSN) is diagnosed and monitored. Ultrasound biomicroscopy (UBM) has been reported to be useful primarily in the assessment of intraocular invasion and metastasis. In vivo confocal microscopy (IVCM) shows enlarged and irregular nuclei with hyperreflective cells in OSSN lesions and this has been found to correlate with histopathology findings. Anterior segment optical coherence tomography (AS-OCT) demonstrates thickened hyperreflective epithelium with an abrupt transition between abnormal and normal epithelium in OSSN lesions and this has also been shown to mimic histopathology findings...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27789225/progress-in-anterior-chamber-angle-imaging-for-glaucoma-risk-prediction-a-review-on-clinical-equipment-practice-and-research
#18
REVIEW
Shinoj V K, Xun Jie Jeesmond Hong, Murukeshan V M, Baskaran M, Aung Tin
The visualization capabilities of various ocular imaging instruments can generally be categorized into photographic (e.g. gonioscopy, Pentacam, RetCam) and optical tomographic (e.g. optical coherence tomography (OCT), photoacoustic (PA) imaging, ultrasound biomicriscopy (UBM)) methods. These imaging instruments allow vision researchers and clinicians to visualize the iridocorneal angle, and are essential in the diagnosis and management of glaucoma. Each of these imaging modalities has particular benefits and associated drawbacks in obtaining repeatable and reliable measurement in the evaluation of the angle...
October 24, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27786165/inflammatory-response-to-dextrin-based-hydrogel-associated-with-human-mesenchymal-stem-cells-urinary-bladder-matrix-and-bonelike-%C3%A2-granules-in-rat-subcutaneous-implants
#19
Dina M Silva, Ana Rita Caseiro, Irina Amorim, Isabel Pereira, Fátima Faria, Tiago Pereira, José Domingos Santos, Francisco Miguel Gama, Ana Colette Maurício
Increasing relevance has been attributed to hydrogels due to their ability to provide an extracellular matrix (ECM)-like environment for cellular adhesion and proliferation, acting as mechanical scaffolds for tissue remodeling or as delivery matrices. In vivo biocompatibility of a hybrid dextrin hydrogel produced from oxidized dextrin and adipic acid dihydrazide and its combinations with human mesenchymal stem cells (hMSCs), ECM from a porcine bladder (urinary bladder matrix) and ceramic granules (Bonelike(®)), was evaluated following ISO 10993 after subcutaneous implantation in a rat model...
October 27, 2016: Biomedical Materials
https://www.readbyqxmd.com/read/27778194/intra-articular-injection-of-urinary-bladder-matrix-reduces-osteoarthritis-development
#20
Heather N Jacobs, Sona Rathod, Matthew T Wolf, Jennifer H Elisseeff
Micronized porcine urinary bladder matrix (UBM) is an extracellular matrix biomaterial that has immunomodulatory and pro-regenerative properties. The objective of this study was to assess the ability of UBM to alter disease progression in a mouse model of post-traumatic osteoarthritis (OA). Ten-week-old wild-type C57BL/6 male mice underwent anterior cruciate ligament transection (ACLT) to induce OA. Two weeks after ACLT, UBM (50 mg/mL) or saline was injected into the mouse joint. At 4 and 8 weeks post-ACLT, cartilage integrity was assessed using OARSI scoring of histology, pain was evaluated, and joints were harvested for quantitative RT-PCR analysis of cartilage-specific and inflammatory gene expression...
January 2017: AAPS Journal
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