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https://www.readbyqxmd.com/read/28239542/a-case-of-mixed-dust-pneumoconiosis-with-desquamative-interstitial-pneumonia-like-reaction-in-an-aluminum-welder
#1
Yuki Iijima, Masashi Bando, Hideaki Yamasawa, Hiroshi Moriyama, Tamiko Takemura, Toshiro Niki, Yukihiko Sugiyama
A 60-year-old man presented with an 18-month history of gradually worsening cough and a 12-month history of dyspnea on exertion. High-resolution computed tomography showed bilateral uniform ground grass opacity in the lower lung fields, partially resolved by smoking cessation. A tentative diagnosis of desquamative interstitial pneumonia (DIP) was made. Video-assisted thoracic surgery was performed and pathological analysis showed peribronchiolar fibrosis with intra-alveolar macrophage infiltration. Elemental analysis detected aluminum and iron in the upper lobe and only iron in the lower lobe...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28238224/a-comparative-toxidrome-analysis-of-human-organophosphate-and-nerve-agent-poisonings-using-social-media
#2
D S Reddy, E Colman
Here we utilized social media to compare the toxidrome of three lethal chemical exposures worldwide. YouTube videos were the main source from which the data were collected, but published reports and news were also utilized to fill in some gaps. All videos were organized in a database detailing symptoms and severity of each victim, along with demographics such as approximate age and gender. Each symptom was rated as mild, moderate, or severe and corresponding pie graphs for each incident were compared. The videos displayed symptoms ranging from mild to severe cholinergic toxicity and life-threatening convulsions...
February 26, 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28238136/antibody-conjugated-single-quantum-dot-tracking-of-membrane-neurotransmitter-transporters-in-primary-neuronal-cultures
#3
Danielle M Bailey, Oleg Kovtun, Sandra J Rosenthal
Single particle tracking (SPT) experiments have provided the scientific community with invaluable single-molecule information about the dynamic regulation of individual receptors, transporters, kinases, lipids, and molecular motors. SPT is an alternative to ensemble averaging approaches, where heterogeneous modes of motion might be lost. Quantum dots (QDs) are excellent probes for SPT experiments due to their photostability, high brightness, and size-dependent, narrow emission spectra. In a typical QD-based SPT experiment, QDs are bound to the target of interest and imaged for seconds to minutes via fluorescence video microscopy...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28237976/patients-with-heart-failure-as-co-designers-of-an-educational-website-implications-for-medical-education
#4
Anne Mette Kristiansen, Jette R Svanholm, Inge Schjødt, Karsten Mølgaard Jensen, Charlotte Silén, Klas Karlgren
Objectives: To identify the learning needs of patients with heart failure between outpatients follow-up visits from their perspective and to ascertain what they emphasize as being important in the design of an educational website for them. Methods: We conducted a two-step qualitative study at Aarhus University Hospital, Denmark. Twenty patients with heart failure participated either in focus group interviews, diary writing, or video-recorded design sessions. Data on learning needs were collected in step 1 and analyses, therefore, helped develop the preliminary prototypes of a website...
February 25, 2017: International Journal of Medical Education
https://www.readbyqxmd.com/read/28237940/an-adaptive-semisupervised-feature-analysis-for-video-semantic-recognition
#5
Minnan Luo, Xiaojun Chang, Liqiang Nie, Yi Yang, Alexander G Hauptmann, Qinghua Zheng
Video semantic recognition usually suffers from the curse of dimensionality and the absence of enough high-quality labeled instances, thus semisupervised feature selection gains increasing attentions for its efficiency and comprehensibility. Most of the previous methods assume that videos with close distance (neighbors) have similar labels and characterize the intrinsic local structure through a predetermined graph of both labeled and unlabeled data. However, besides the parameter tuning problem underlying the construction of the graph, the affinity measurement in the original feature space usually suffers from the curse of dimensionality...
February 20, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28237426/the-role-of-the-human-visual-cortex-in-assessment-of-the-long-term-durability-of-retinal-gene-therapy-in-follow-on-rpe65-clinical-trial-patients
#6
Manzar Ashtari, Elena S Nikonova, Kathleen A Marshall, Gloria J Young, Puya Aravand, Wei Pan, Gui-Shuang Ying, Aimee E Willett, Mani Mahmoudian, Albert M Maguire, Jean Bennett
PURPOSE: Gene therapy (GT) has offered immense hope to individuals who are visually impaired because of RPE65 mutations. Although GT has shown great success in clinical trials enrolling these individuals, evidence for stability and durability of this treatment over time is still unknown. Herein we explored the value of functional magnetic resonance imaging (fMRI) as an objective measure to assess independently the longevity of retinal GT. DESIGN: Individuals with RPE65 mutations who underwent GT in their worse-seeing eye in a phase 1 clinical trial received a second subretinal injection in their contralateral eye in a follow-on clinical trial...
February 22, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28236725/diagnostic-implications-of-review-of-systems-questionnaires-to-differentiate-epileptic-seizures-from-psychogenic-seizures
#7
Wesley T Kerr, Emily A Janio, Chelsea T Braesch, Justine M Le, Jessica M Hori, Akash B Patel, Sarah E Barritt, Norma L Gallardo, Janar Bauirjan, Andrea M Chau, Eric S Hwang, Emily C Davis, David Torres-Barba, Andrew Y Cho, Jerome Engel, Mark S Cohen, John M Stern
OBJECTIVE: Early and accurate diagnosis of patients with psychogenic nonepileptic seizures (PNES) leads to appropriate treatment and improves long-term seizure prognosis. However, this is complicated by the need to record seizures to make a definitive diagnosis. Suspicion for PNES can be raised through knowledge that patients with PNES have increased somatic sensitivity and report more positive complaints on review-of-systems questionnaires (RoSQs) than patients with epileptic seizures...
February 22, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28231626/default-mode-network-deactivation-to-smoking-cue-relative-to-food-cue-predicts-treatment-outcome-in-nicotine-use-disorder
#8
Claire E Wilcox, Eric D Claus, Vince D Calhoun, Srinivas Rachakonda, Rae A Littlewood, Jessica Mickey, Pamela B Arenella, Natalie Goodreau, Kent E Hutchison
Identifying predictors of treatment outcome for nicotine use disorders (NUDs) may help improve efficacy of established treatments, like varenicline. Brain reactivity to drug stimuli predicts relapse risk in nicotine and other substance use disorders in some studies. Activity in the default mode network (DMN) is affected by drug cues and other palatable cues, but its clinical significance is unclear. In this study, 143 individuals with NUD (male n = 91, ages 18-55 years) received a functional magnetic resonance imaging scan during a visual cue task during which they were presented with a series of smoking-related or food-related video clips prior to randomization to treatment with varenicline (n = 80) or placebo...
February 23, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28229515/treatment-integrity-of-elaborated-semantic-feature-analysis-aphasia-therapy-delivered-in-individual-and-group-settings
#9
Vasiliki Kladouchou, Ilias Papathanasiou, Eva A Efstratiadou, Vasiliki Christaki, Katerina Hilari
BACKGROUND & AIMS: This study ran within the framework of the Thales Aphasia Project that investigated the efficacy of elaborated semantic feature analysis (ESFA). We evaluated the treatment integrity (TI) of ESFA, i.e., the degree to which therapists implemented treatment as intended by the treatment protocol, in two different formats: individual and group therapy. METHODS & PROCEDURES: Based on the ESFA manual, observation of therapy videos and TI literature, we developed two ESFA integrity checklists, for individual and group therapy, and used them to rate 15 videos of therapy sessions, delivered by three speech-language therapists (SLTs)...
February 23, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28228416/cough-and-expiration-reflexes-elicited-by-inhaled-irritant-gases-are-intensified-in-ovalbumin-sensitized-mice
#10
Cheng Zhang, Ruei-Lung Lin, Jeff Hong, Mehdi Khosravi, Lu-Yuan Lee
This study was designed to determine the effect of active sensitization with ovalbumin (Ova) on cough responses to inhaled irritant gases in mice. Conscious mice moved freely in a recording chamber while the pressure change in the chamber, audio and video signals of the mouse movements were recorded simultaneously to measure the frequencies of cough reflex (CR) and expiration reflex (ER). To further verify the accuracy of cough analysis, the intra-pleural pressure was also recorded by a telemetry sensor surgically implanted in the intra-pleural space in a subgroup of mice...
February 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28227962/personalization-of-noneeg-based-seizure-detection-systems
#11
D Cogan, M Heydarzadeh, M Nourani, D Cogan, M Heydarzadeh, M Nourani, M Heydarzadeh, D Cogan, M Nourani
Seizures affect each patient differently, so personalization is a vital part of developing a reliable nonEEG based seizure detection system. This personalization must be done while the patient is undergoing video EEG monitoring in an epilepsy monitoring unit (EMU) because seizure detection by EEG is considered to be the ground truth. We propose the use of confidence interval analysis for determining how many seizures must be captured from a patient before we can reliably personalize such a seizure detection system for him/her...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227729/high-frame-rate-medical-quality-video-compression-for-tele-eeg
#12
Laurent Lambert, Syed Zahid Ahmed, Khalil Hachicha, Andrea Pinna, Patrick Garda, Laurent Lambert, Syed Zahid Ahmed, Khalil Hachicha, Andrea Pinna, Patrick Garda, Syed Zahid Ahmed, Andrea Pinna, Laurent Lambert, Patrick Garda, Khalil Hachicha
More and more, exams require medical images as a tool to diagnose pathologies. Thus, the transfer and storage of the exam data becomes a critical issue. To address this issue, an image compression algorithm called Waaves has been developed and certified for medical imaging. Our work in this paper deals with a scenario of EEG exams where video of the patient is also recorded in order to correctly diagnose myoclonus pathologies. To achieve this goal, the video needs to be of high quality and at frame rate of at least 100 frames per second...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227720/can-we-make-a-carpet-smart-enough-to-detect-falls
#13
Fadi Muheidat, Harry W Tyrer, Fadi Muheidat, Harry W Tyrer, Harry W Tyrer, Fadi Muheidat
In this paper, we have enhanced smart carpet, which is a floor based personnel detector system, to detect falls using a faster but low cost processor. Our hardware front end reads 128 sensors, with sensors output a voltage due to a person walking or falling on the carpet. The processor is Jetson TK1, which provides more computing power than before. We generated a dataset with volunteers who walked and fell to test our algorithms. Data obtained allowed examining data frames (a frame is a single scan of the carpet sensors) read from the data acquisition system...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227606/video-analysis-validation-of-a-real-time-physical-activity-detection-algorithm-based-on-a-single-waist-mounted-tri-axial-accelerometer-sensor
#14
Alan K Bourke, Espen A F Ihlen, Pepijn Van de Ven, John Nelson, Jorunn L Helbostad, Alan K Bourke, Espen A F Ihlen, Pepijn Van de Ven, John Nelson, Jorunn L Helbostad, Jorunn L Helbostad, Alan K Bourke, John Nelson, Pepijn Van de Ven, Espen Af Ihlen
We have validated a real-time activity classification algorithm based on monitoring by a body worn system which is potentially suitable for low-power applications on a relatively computationally lightweight processing unit. The algorithm output was validated using annotation data generated from video recordings of 20 elderly volunteers performing both a semi-structured protocol and a free-living protocol. The algorithm correctly identified sitting 75.1% of the time, standing 68.8% of the time, lying 50.9% of the time, and walking and other upright locomotion 82...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227466/engineering-based-assessment-for-a-shape-design-of-a-pediatric-eptfe-pulmonary-conduit-valve
#15
Yusuke Tsuboko, Yasuyuki Shiraishi, Akihiro Yamada, Tomoyuki Yambe, Hidekazu Miura, Seitaro Mura, Masaaki Yamagishi, Yusuke Tsuboko, Yasuyuki Shiraishi, Akihiro Yamada, Tomoyuki Yambe, Hidekazu Miura, Seitaro Mura, Masaaki Yamagishi, Akihiro Yamada, Seitaro Mura, Yasuyuki Shiraishi, Tomoyuki Yambe, Yusuke Tsuboko, Hidekazu Miura, Masaaki Yamagishi
The authors examined the hemodynamic characteristics of expanded polytetrafluoroethylene (ePTFE) pulmonary valved conduits quantitatively by our originally developed pediatric pulmonary mechanical circulatory system, in order to suggest the optimal shape design. The system consisted of pneumatically driven right atrium and ventricle model, a pulmonary valve chamber, and elastic pulmonary compliance model with peripheral vascular resistance units, a venous reservoir. We employed two different types of ePTFE valve and evaluated the relationship between the leaflets motion and hemodynamic characteristics by using a high-speed video camera...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227418/automatic-pneumonia-detection-based-on-ultrasound-video-analysis
#16
Pedro Cisneros-Velarde, Malena Correa, Holger Mayta, Cynthia Anticona, Monica Pajuelo, Richard Oberhelman, William Checkley, Robert H Gilman, Dante Figueroa, Mirko Zimic, Roberto Lavarello, Benjamin Castaneda, Pedro Cisneros-Velarde, Malena Correa, Holger Mayta, Cynthia Anticona, Monica Pajuelo, Richard Oberhelman, William Checkley, Robert H Gilman, Dante Figueroa, Mirko Zimic, Roberto Lavarello, Benjamin Castaneda, Robert H Gilman, Holger Mayta, Monica Pajuelo, Cynthia Anticona, Roberto Lavarello, Dante Figueroa, Pedro Cisneros-Velarde, Richard Oberhelman, Mirko Zimic, Benjamin Castaneda, William Checkley, Malena Correa
Pneumonia is a disease which causes high mortality in children under five years old, particularly in developing countries. This paper proposes a novel application of ultrasound video analysis for the detection of pneumonia. This application is based on the processing of small video chunks, in which an image processing algorithm analyzes each frame to get some overall video statistics. Then, based on these quantities, the likeness of presence of pneumonia in the video is determined. The algorithm exploits different geometrical properties of typical anatomical and pathological features that commonly appear in lung sonography and which are already clinically typified in the literature...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227374/measuring-pulse-rate-variability-using-long-range-non-contact-imaging-photoplethysmography
#17
Ethan B Blackford, Alyssa M Piasecki, Justin R Estepp, Ethan B Blackford, Alyssa M Piasecki, Justin R Estepp, Ethan B Blackford, Alyssa M Piasecki, Justin R Estepp
Camera-based measurement of the blood volume pulse via non-contact, imaging photoplethysmography is a very popular approach for measuring pulse rate using a remote imaging sensor. Comparatively less attention has been paid to the usefulness of the method for measuring features of pulse rate variability, and even less focus has been put on the accuracy of any cardiac activity feature that can be achieved at long imager-to-subject distances. In this study, video was recorded from 19 participants, while at rest, at a distance of 25 meters from the imaging sensor...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227358/a-view-invariant-gait-cycle-segmentation-for-ambient-monitoring
#18
Hao Wu, Beilei Xu, Himanshu Madhu, Jing Zhou, Hao Wu, Beilei Xu, Himanshu Madhu, Jing Zhou, Jing Zhou, Hao Wu, Beilei Xu, Himanshu Madhu
Gait analysis has many clinical applications in disease detection and treatment evaluation. Gait cycle segmentation is a critical component in gait analysis for timing the gait phases in evaluating many movement disorders. Computer vision techniques have been widely used in surveillance for security monitoring. They are nonintrusive and do not require cooperation from subjects. In this paper, we propose to leverage the videos from existing surveillance monitoring systems to provide long-term and ambient assessments of gait patterns from subjects' daily activity without the requirement of wearing a device...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227020/spatial-temporal-forensic-analysis-of-mass-casualty-incidents-using-video-sequences
#19
Hao Dong, Juechen Yin, James Schafer, Aura Ganz, Hao Dong, Juechen Yin, James Schafer, Aura Ganz, Juechen Yin, Hao Dong, James Schafer, Aura Ganz
In this paper we introduce DIORAMA based forensic analysis of mass casualty incidents (MCI) using video sequences. The video sequences captured on site are automatically annotated by metadata, which includes the capture time and the camera location and viewing direction. Using a visual interface the MCI investigators can easily understand the availability of video clips in specific areas of interest, and efficiently review them. The video-based forensic analysis system will enable the MCI investigators to better understand the rescue operations and subsequently improve training procedures...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227002/3d-limb-movement-tracking-and-analysis-for-neurological-dysfunctions-of-neonates-using-multi-camera-videos
#20
Irene Yu-Hua Gu, Grzegorz Sowulewski, Yixiao Yun, Anders Flisberg, Magnus Thordstein, Irene Yu-Hua Gu, Grzegorz Sowulewski, Yixiao Yun, Anders Flisberg, Magnus Thordstein, Irene Yu-Hua Gu, Grzegorz Sowulewski, Anders Flisberg, Yixiao Yun, Magnus Thordstein
Central nervous system dysfunction in infants may be manifested through inconsistent, rigid and abnormal limb movements. Detection of limb movement anomalies associated with such neurological dysfunctions in infants is the first step towards early treatment for improving infant development. This paper addresses the issue of detecting and quantifying limb movement anomalies in infants through non-invasive 3D image analysis methods using videos from multiple camera views. We propose a novel scheme for tracking 3D time trajectories of markers on infant's limbs by video analysis techniques...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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