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https://www.readbyqxmd.com/read/28738420/variation-in-the-three-dimensional-histomorphometry-of-the-normal-human-optic-nerve-head-with-age-and-race-lamina-cribrosa-and-peripapillary-scleral-thickness-and-position
#1
Christopher A Girkin, Massimo A Fazio, Hongli Yang, Juan Reynaud, Claude F Burgoyne, Brandon Smith, Lan Wang, J Crawford Downs
Purpose: This study quantified the thickness and depth of the lamina cribrosa (LC) and peripapillary scleral thickness in high-resolution three-dimensional (3D) fluorescent reconstructions of the optic nerve head (ONH) in eyes from donors of African (AD) and European descent (ED). Methods: A total of 64 eyes (45 ED, 19 AD) from 51 normal donors were obtained within 6 hours of death and fixed at 10 mm Hg of pressure. The optic nerve head was trephined from the globe and digitally reconstructed at 1...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28738248/the-reliability-and-validity-of-measurements-of-human-dental-casts-made-by-an-intra-oral-3d-scanner-with-conventional-hand-held-digital-callipers-as-the-comparison-measure
#2
Mithun Rajshekar, Roberta Julian, Anne-Marie Williams, Marc Tennant, Alex Forrest, Laurence J Walsh, Gary Wilson, Leigh Blizzard
AIM: Intra-oral 3D scanning of dentitions has the potential to provide a fast, accurate and non-invasive method of recording dental information. The aim of this study was to assess the reliability of measurements of human dental casts made using a portable intra-oral 3D scanner appropriate for field use. METHOD: Two examiners each measured 84 tooth and 26 arch features of 50 sets of upper and lower human dental casts using digital hand-held callipers, and secondly using the measuring tool provided with the Zfx IntraScan intraoral 3D scanner applied to the virtual dental casts...
July 13, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28738007/comparison-of-intraosseous-pentobarbital-administration-and-thoracic-compression-for-euthanasia-of-anesthetized-sparrows-passer-domesticus-and-starlings-sturnus-vulgaris
#3
Joanne R Paul-Murphy, Andrew Engilis, Peter J Pascoe, D Colette Williams, Kate A Gustavsen, Tracy L Drazenovich, M Kevin Keel, Tamsen M Polley, Irene E Engilis
OBJECTIVE To compare intraosseous pentobarbital treatment (IPT) and thoracic compression (TC) on time to circulatory arrest and an isoelectric electroencephalogram (EEG) in anesthetized passerine birds. ANIMALS 30 wild-caught adult birds (17 house sparrows [Passer domesticus] and 13 European starlings [Sturnus vulgaris]). PROCEDURES Birds were assigned to receive IPT or TC (n = 6/species/group). Birds were anesthetized, and carotid arterial pulses were monitored by Doppler methodology. Five subdermal braided-wire electrodes were used for EEG...
August 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28737759/outcome-of-universal-newborn-eye-screening-with-wide-field-digital-retinal-image-acquisition-system-a-pilot-study
#4
P Goyal, T R Padhi, T Das, L Pradhan, S Sutar, S Butola, U C Behera, L Jain, S Jalali
PurposeTo evaluate the outcome of universal newborn eye screening with wide-field digital retinal imaging (WFDRI) system.MethodsIn this pilot study, we examined 1152 apparently healthy newborn infants in the obstetrics and gynecology ward of a civil hospital in Eastern India over 1.5 years. The examination included external eye examination, red reflex test and fundus imaging by WFDRI (RetCam II, Clarity medical system, Pleasanton, CA, USA) by a trained optometrist. The pathologies detected, net monetary gain and skilled manpower saved were documented...
July 24, 2017: Eye
https://www.readbyqxmd.com/read/28737741/rapidly-inducible-cas9-and-dsb-ddpcr-to-probe-editing-kinetics
#5
John C Rose, Jason J Stephany, William J Valente, Bridget M Trevillian, Ha V Dang, Jason H Bielas, Dustin J Maly, Douglas M Fowler
We developed a chemically inducible Cas9 (ciCas9) and a droplet digital PCR assay for double-strand breaks (DSB-ddPCR) to investigate the kinetics of Cas9-mediated generation and repair of DSBs in cells. ciCas9 is a rapidly activated, single-component Cas9 variant engineered by replacing the protein's REC2 domain with the BCL-xL protein and fusing an interacting BH3 peptide to the C terminus. ciCas9 can be tunably activated by a compound that disrupts the BCL-xL-BH3 interaction within minutes. DSB-ddPCR demonstrates time-resolved, highly quantitative, and targeted measurement of DSBs...
July 24, 2017: Nature Methods
https://www.readbyqxmd.com/read/28737563/reverse-distal-transverse-palmar-arch-in-distal-digital-replantation
#6
Ching-Yueh Wei, Oscar Orozco, Gustavo Vinagre, Mark Shafarenko
BACKGROUND: Refinements in microsurgery have made distal finger replantation an established technique with high success rates and good functional and aesthetic outcomes. However, it still represents a technically demanding procedure due to the small vessel caliber and frequent lack of vessel length, requiring the use of interpositional venous grafts in some instances. We describe a new technique for anastomosis in fingertip replantation, whereby the need for venous grafts is eliminated...
July 22, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28737431/the-analysis-of-pneumatic-atomization-of-newtonian-and-non-newtonian-fluids-for-different-medical-nebulizers
#7
Marek Ochowiak, Magdalena Matuszak, Sylwia Włodarczak
OBJECTIVE: The paper contains results of the experimental studies on atomization process of inhaled drugs and aqueous solutions of glycerol with aqueous solutions of glycerol-polyacrylamide (Rokrysol WF1) in pneumatic nebulizers. In experiments the different concentration of aqueous solutions of glycerol-polyacrylamide have been tested. In addition, the effect of nebulizer design on atomization process has been determined. The one of the main elements of medical pneumatic nebulizer is nebulizer cup...
July 24, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28737353/-neonaticides-in-france-analysis-of-357%C3%A2-cases-identified-in-the-press-1993-2012
#8
Laurence Simmat-Durand
Background and objectives: Despite easy access to contraception and child abandonment in France, neonaticides continue to occur and, although rare, are widely publicized. The objective of this study was to characterize neonaticides and their perpetrators over a twenty-year period in France based on cases reported in the press. Methods: 2,319 press articles describing the discovery of a newborn corpse in the regional and national press were extracted from electronic databases or other digital supports. A total of 357 neonaticides were described, corresponding to a mean annual rate of 2...
July 10, 2017: Santé Publique: Revue Multidisciplinaire Pour la Recherche et L'action
https://www.readbyqxmd.com/read/28737230/endometrial-cytopathology-an-image-analysis-approach-using-the-ki-67-biomarker
#9
G Apostolou, N Apostolou, P Moulos, P Chatzipantelis
OBJECTIVE: To investigate the different identity and biological behaviour of endometrial benign epithelial and endometrial adenocarcinoma cell categories. METHODS: For this study, the imprint smears from three groups, 10 cases of disordered proliferative/benign hyperplastic endometrium, 21 cases of low-grade and eight cases of high-grade endometrial adenocarcinoma, were examined using image analysis and the Ki-67 biomarker. The plastic stem cell model was also applied...
July 24, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28737081/hypotension-of-%C3%A2-110-mmhg-is-associated-with-increased-mortality-in-south-african-patients-after-trauma
#10
D L Clarke, P Brysiewicz, B Sartorius, J L Bruce, G L Laing
INTRODUCTION: This study used data from a prospectively maintained trauma database to assess the level of systolic blood pressure at which mortality rates for trauma begin to increase and to compare systolic blood pressure with base deficit as a predictor of outcome. METHODOLOGY: The Pietermaritzburg Metropolitan Trauma Service maintains a prospective digital trauma registry. All trauma patients admitted to the service for the period January 2012-January 2015 were included...
March 1, 2017: Scandinavian Journal of Surgery: SJS
https://www.readbyqxmd.com/read/28736934/using-social-media-to-engage-nurses-in-health-policy-development
#11
Siobhan O'Connor
AIMS: To explore nurses' views on future priorities for the profession and to examine social media as an engagement tool to aid policy discussion and development. BACKGROUND: Nurses are often not directly involved in policy creation and some feel it is a process they cannot easily influence. METHODS: A descriptive mixed methods study of a Twitter chat hosted by the Chief Nursing Officer for Scotland was undertaken. Data were gathered using an analytics platform and NCapture software...
July 23, 2017: Journal of Nursing Management
https://www.readbyqxmd.com/read/28736932/current-practice-of-continence-advisors-in-managing-faecal-incontinence-in-the-united-kingdom-results-of-an-online-survey
#12
Cosimo Alex Leo, Yasuko Maeda, Brigitte Collins, Gregory P Thomas, Jonathan D Hodgkinson, Jamie Murphy, Carolynne J Vaizey
AIM: To investigate the current practice of continence advisors in the United Kingdom. METHOD: Continence advisors were contacted by email or letter to participate in a survey. The survey contained 27 questions which addressed the practice of each continence advisor, their knowledge of continence management and the adequacy of their training. RESULTS: Two hundred and twenty six out of a total of 448 continence advisors (50.4%), responded. One hundred and seventy (76...
July 24, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28736870/alveolar-bone-resorption-after-primary-tooth-loss-has-a-negative-impact-on-straightforward-implant-installation-in-patients-with-agenesis-of-the-lower-second-premolar
#13
Kristina Bertl, Michael H Bertl, Patrick Heimel, Maria Burt, André Gahleitner, Andreas Stavropoulos, Christian Ulm
OBJECTIVES: To compare the alveolar bone dimensions in patients with lower second premolar (P2) agenesis prior to and after primary molar loss on CT scans, and assess the possibility for straightforward implant placement. METHODS: Alveolar bone dimensions were evaluated on 150 mandibular CT scans in three groups: (i) agenesis of P2, with the primary tooth in situ, and regularly erupted first premolar (P1) and molar (M1) (AW); (ii) agenesis of P2, without the primary tooth in situ for ≥3 m, but regularly erupted P1 and M1 (AWO); and (iii) P1, P2, and M1 regularly erupted (CTR)...
July 23, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28736826/impact-of-respiratory-motion-and-acquisition-settings-on-spect-liver-dosimetry-for-radioembolization
#14
Remco Bastiaannet, Max A Viergever, Hugo W A M de Jong
PURPOSE: Respiratory motion may impose significant inaccuracies on emission activity estimation in quantitative SPECT. This effect may be a major issue in dosimetry as used in management of liver radioembolization. The purpose of this study was to investigate the impact of respiratory motion on radioembolization liver dosimetry for different SPECT acquisition settings. METHODS: In a series of SPECT/CT Monte Carlo simulations using several digital XCAT phantoms, the following parameters were varied: breathing/non-breathing, liver tumor size (0...
July 24, 2017: Medical Physics
https://www.readbyqxmd.com/read/28736772/on-quantifying-diffusion-of-health-information-on-twitter
#15
Gokhan Bakal, Ramakanth Kavuluru
With the increasing use of digital technologies, online social networks are emerging as major means of communication. Recently, social networks such as Facebook and Twitter are also being used by consumers, care providers (physicians, hospitals), and government agencies to share health related information. The asymmetric user network and the short message size have made Twitter particularly popular for propagating health related content on the Web. Besides tweeting on their own, users can choose to retweet particular tweets from other users (even if they do not follow them on Twitter...
February 2017: IEEE-EMBS International Conference on Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28736733/a-model-for-mhealth-skills-training-for-clinicians-meeting-the-future-now
#16
Donna J Slovensky, Donna M Malvey, Alexis R Neigel
We describe the current state of mHealth skills acquisition, education, and training available to clinical professionals in educational programs. We discuss how telemedicine experienced exponential growth due in large part to the ubiquity of the mobile phone. An outcome of this unprecedented growth has been the emergence of the need for technology skills training programs for clinicians that address extant curricula gaps. We propose a model to guide the development of future training programs that incorporate effective training strategies across five domains: (I) digital communication skills; (II) technology literacy and usage skills; (III) deploying telehealth products and services; (VI) regulatory and compliance issues; and (V) telehealth business case...
2017: MHealth
https://www.readbyqxmd.com/read/28736675/simulation-study-on-compressive-laminar-optical-tomography-for-cardiac-action-potential-propagation
#17
Takumi Harada, Naoki Tomii, Shota Manago, Etsuko Kobayashi, Ichiro Sakuma
To measure the activity of tissue at the microscopic level, laminar optical tomography (LOT), which is a microscopic form of diffuse optical tomography, has been developed. However, obtaining sufficient recording speed to determine rapidly changing dynamic activity remains major challenges. For a high frame rate of the reconstructed data, we here propose a new LOT method using compressed sensing theory, called compressive laminar optical tomography (CLOT), in which novel digital micromirror device-based illumination and data reduction in a single reconstruction are applied...
April 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28736667/changes-in-optical-properties-of-electroporated-cells-as-revealed-by-digital-holographic-microscopy
#18
Violeta L Calin, Mona Mihailescu, Nicolae Mihale, Alexandra V Baluta, Eugenia Kovacs, Tudor Savopol, Mihaela G Moisescu
Changes in optical and shape-related characteristics of B16F10 cells after electroporation were investigated using digital holographic microscopy (DHM). Bipolar rectangular pulses specific for electrochemotherapy were used. Electroporation was performed in an "off-axis" DHM set-up without using exogenous markers. Two types of cell parameters were monitored seconds and minutes after pulse train application: parameters addressing a specifically defined area of the cell (refractive index and cell height) and global cell parameters (projected area, optical phase shift profile and dry mass)...
April 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28736659/high-dynamic-range-fluorescence-laminar-optical-tomography-hdr-flot
#19
Qinggong Tang, Yi Liu, Vassiliy Tsytsarev, Jonathan Lin, Bohan Wang, Udayakumar Kanniyappan, Zhifang Li, Yu Chen
Three-dimensional fluorescence laminar optical tomography (FLOT) can achieve resolutions of 100-200 µm and penetration depths of 2-3 mm. FLOT has been used in tissue engineering, neuroscience, as well as oncology. The limited dynamic range of the charge-coupled device-based system makes it difficult to image fluorescent samples with a large concentration difference, limits its penetration depth, and diminishes the quantitative accuracy of 3D reconstruction data. Here, incorporating the high-dynamic-range (HDR) method widely used in digital cameras, we present HDR-FLOT, increasing penetration depth and improving the ability to image fluorescent samples with a large concentration difference...
April 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28736654/enhancement-of-short-coherence-digital-holographic-microscopy-by-optical-clearing
#20
Zhiyuan Shen, Xiaorui Guo, Yilong Zhang, Dongmei Li, Yonghong He
In this work, we used a short coherence digital holographic microscopy system to demonstrate cross-talk noise suppression and imaging performance enhancement by optical clearing. Performance of the system on both phantom and in vitro porcine skin tissues before and after the treatment of 70% v./v. glycerol-saline solution was investigated. Our results showed that optical clearing effectively inhibits the cross-talk noise and improves the image quality in the deep of the in vitro porcine skin tissues. The imaging depth was increased by about 30% after topical application of the glycerol-saline solution for 30 min...
April 1, 2017: Biomedical Optics Express
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