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https://www.readbyqxmd.com/read/29457381/a-multicentre-study-of-validity-and-reliability-of-responses-to-hand-cold-challenge-as-measured-by-laser-speckle-contrast-imaging-and-thermography-outcome-measures-for-systemic-sclerosis-related-raynaud-s-phenomenon
#1
Jack D Wilkinson, Sarah A Leggett, Elizabeth J Marjanovic, Tonia L Moore, John Allen, Marina E Anderson, Jason Britton, Maya H Buch, Francesco Del Galdo, Christopher P Denton, Graham Dinsdale, Bridgett Griffiths, Frances Hall, Kevin Howell, Audrey MacDonald, Neil J McHugh, Joanne B Manning, John D Pauling, Christopher Roberts, Jacqueline A Shipley, Ariane L Herrick, Andrea K Murray
BACKGROUND: Objective and reliable outcome measures to facilitate clinical trials of novel treatments for systemic sclerosis (SSc)-related Raynaud's phenomenon (RP) are badly needed. Laser speckle contrast imaging (LSCI) and thermography are non-invasive measures of perfusion that show excellent potential. The purpose of this multi-centre study was to determine the reliability and validity of a hand cold challenge protocol using LSCI, standard thermography and low-cost mobile phone-based thermography...
February 18, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29449754/behavioural-and-physiological-responses-of-laying-hens-to-automated-monitoring-equipment
#2
Stephanie Buijs, Francesca Booth, Gemma Richards, Laura McGaughey, Christine J Nicol, Joanne Edgar, John F Tarlton
Automated monitoring of behaviour can offer a wealth of information in circumstances where observing behaviour is difficult or time consuming. However, this often requires attaching monitoring devices to the animal which can alter behaviour, potentially invalidating any data collected. Birds often show increased preening and energy expenditure when wearing devices and, especially in laying hens, there is a risk that individuals wearing devices will attract aggression from conspecifics. We studied the behavioural and physiological response of 20 laying hens to backpacks containing monitoring devices fastened with elastic loops around the wing base...
February 2018: Applied Animal Behaviour Science
https://www.readbyqxmd.com/read/29449355/red-alert-infrared-thermography-for-esophageal-monitoring
#3
EDITORIAL
Ryan T Borne, Duy T Nguyen
No abstract text is available yet for this article.
February 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29449354/high-resolution-infrared-thermography-of-esophageal-temperature-during-radiofrequency-ablation-of-atrial-fibrillation
#4
Matthew G Daly, Iain Melton, Graham Roper, Gary Lim, Ian G Crozier
BACKGROUND: Catheter ablation for atrial fibrillation has potential to cause esophageal thermal injury. Esophageal temperature monitoring during ablation is commonly used; however, it has not eliminated thermal injuries, possibly because conventional sensors have poor spatial sampling and response characteristics. To enhance understanding of temperature dynamics that may underlie esophageal injury, we tested a high-resolution, intrabody, infrared thermography catheter to continuously image esophageal temperatures during ablation...
February 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29444267/safety-of-laser-interstitial-thermal-therapy-in-patients-with-pacemakers
#5
Sanjeet S Grewal, Krzysztof R Gorny, Christopher P Favazza, Robert E Watson, Timothy J Kaufmann, Jamie J Van Gompel
BACKGROUND AND IMPORTANCE: Laser interstitial thermal therapy (LiTT) has increasingly been used as a treatment option for medically refractory epilepsy, tumors, and radiation necrosis. The use of LiTT requires intraoperative magnetic resonance (MR) thermography. This can become an issue in patients with other implanted therapeutic devices such as pacemakers and vagal nerve stimulators due to concerns regarding increases in the specific absorption rate (SAR). This is a technical case report demonstrating a successfully and safely performed LiTT in a 1...
February 10, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29438703/etizolam-attenuates-the-reduction-in-cutaneous-temperature-induced-in-mice-by-exposure-to-synthetic-predator-odor
#6
Sadaharu Miyazono, Kaede Hasegawa, Seri Miyazaki, Hikari Sakakima, Shun Konno, Saori Meguro, Hitoshi Sasajima, Tomohiro Noguchi, Kazumi Osada, Makoto Kashiwayanagi
Anxiety- and stress-related disorders can be debilitating psychiatric conditions in humans. To prevent or ameliorate these conditions, reliable animal models are needed to evaluate the effects of anxiolytic drugs. Previously, we found that a mixture of three pyrazine analogues (P-mix) that were present at high levels in wolf urine induced fear-related responses in mice, rats and deer. A change in cutaneous temperature was shown to be induced by acute stress simultaneously with changes in heart rate, arterial pressure and freezing behavior, raising the possibility that cutaneous temperature could be used as an index of stress...
February 10, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29435018/thermographic-real-time-monitoring-of-surgical-radiofrequency-and-microwave-ablation-in-a-perfused-porcine-liver-model
#7
Florian Primavesi, Stefan Swierczynski, Eckhard Klieser, Tobias Kiesslich, Tarkan Jäger, Romana Urbas, Jörg Hutter, Daniel Neureiter, Dietmar Öfner, Stefan Stättner
Radiofrequency ablation (RFA) and microwave ablation (MWA) are currently the dominant modalities to treat unresectable liver tumors. Monitoring the ablation process with b-mode-sonography is often hampered by artefacts. Furthermore, vessels may cause cooling in the adjacent tumor target (heat-sink-effect) with risk of local recurrence. The present study evaluated infrared-thermography to monitor surgical RFA/MWA and detect heat-sink-effects in real-time. RFA and MWA of perfused porcine livers was conducted at peripheral and central-vessel-adjacent locations, and monitored by real-time thermography...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29432098/physics-based-image-segmentation-using-first-order-statistical-properties-and-genetic-algorithm-for-inductive-thermography-imaging
#8
Bin Gao, Xiaoqing Li, Wai Lok Woo, Gui Yun Tian
Thermographic inspection has been widely applied to non-destructive testing and evaluation with the capabilities of rapid, contactless, and large surface area detection. Image segmentation is considered essential for identifying and sizing defects. To attain a high-level performance, specific physics-based models that describe defects generation and enable the precise extraction of target region are of crucial importance. In this paper, an effective genetic first-order statistical image segmentation algorithm is proposed for quantitative crack detection...
May 2018: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29425986/is-edema-a-matter-of-concern-after-laser-ablation-of-epileptogenic-focus
#9
Vivek Tandon, Michael Lang, Poodipedi Sarat Chandra, Ashwini Sharan, Ajay Garg, Manjari Tripathi
BACKGROUND: A stereotactically placed laser fiber can deliver thermal energy to an epileptogenic focus in brain. This procedure is done under intraoperative (thermography) magnetic resonance imaging (MRI) guidance. Thermoablation can lead to edema in surrounding area and can cause secondary insult. In this case report of three cases, we have quantified the edema produced after laser ablation, with sequential MRI in immediate post-operative period. CASE DESCRIPTION(S): Three patients of intractable epilepsy underwent proper neurological and neuro-radiological workup to localize the site of epileptogenic foci...
February 6, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29421489/stress-level-effects-on-sport-performance-during-trotting-races-in-spanish-trotter-horses
#10
Sara Negro, Ester Bartolomé, Antonio Molina, Marina Solé, Mª Dolores Gómez, Mercedes Valera
The stress level is suggested to have a negative effect on horses during equestrian competitions, specifically in trotter racing. The main objectives of this study were to measure stress levels in Spanish Trotter Horse races with a reliable non-invasive method, and determining the threshold level of stress that leads to the best performance results and also shows when the stress perceived by the horse becomes distress. One hundred and thirty individuals were evaluated, measuring their performance (based on racing time per kilometre (TPK)) and their stress (based on eye temperature, assessed with infrared thermography, and heart rate) in different competitions...
February 3, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29419797/infrared-thermography-as-a-non-invasive-tool-to-explore-differences-in-the-musculoskeletal-system-of-children-with-hemophilia-compared-to-an-age-matched-healthy-group
#11
Axel Seuser, Karin Kurnik, Anne-Katrin Mahlein
Recurrent joint bleeds and silent bleeds are the most common clinical feature in patients with hemophilia. Every bleed causes an immediate inflammatory response and is the leading cause of chronic crippling arthropathy. With the help of infrared thermography we wanted to detect early differences between a group of clinical non-symptomatic children with hemophilia (CWH) with no history of clinically detected joint bleeds and a healthy age-matched group of children. This could help to discover early inflammation and help implement early treatment and preventative strategies...
February 8, 2018: Sensors
https://www.readbyqxmd.com/read/29409904/early-assessment-of-burn-depth-with-far-infrared-time-lapse-thermography
#12
Jon D Simmons, Steven A Kahn, Adrienne L Vickers, Edward S Crockett, Jonathon D Whitehead, Amy K Krecker, Yann-Leei Lee, Adam N Miller, Scott B Patterson, William O Richards, Wiltz W Wagner
BACKGROUND: Diagnosing the extremes of superficial burns and of full-thickness burns is straightforward. It is in the middle ground of partial thickness burns where the diagnostic difficulties emerge; it can take up to 3-5 days for signs of healing to appear. We hypothesize that cooling partial thickness burns and tracking the rate of rewarming will immediately reflect the condition of the burn: shallow partial-thickness burns that retain cell health and blood flow will rewarm rapidly, whereas deeper burns with damaged microvessels will rewarm slowly...
January 30, 2018: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29402577/high-voltage-electric-stimulation-of-the-donor-site-of-skin-grafts-accelerates-the-healing-process-a-randomized-blinded-clinical-trial
#13
Rosana C Gomes, Elaine C O Guirro, Adriana C Gonçalves, Jayme A Farina Junior, Luiz O Murta Junior, Rinaldo R J Guirro
INTRODUCTION: Severe burns benefit from skin grafting, and grafting surgery is of great importance in the treatment of these injuries. As a result, there is formation of an additional wound at the donor site, which is painful and susceptible to infection. However, the therapeutic approach to these problems at donor sites for skin grafting is insufficiently explored in the literature. AIM: To evaluate electrical stimulation of the donor sites of burn patients treated by grafting surgery...
February 2, 2018: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29401998/thermography-based-online-characterization-of-conductive-thin-films-in-large-scale-electronics-fabrication
#14
Kari Remes, Kimmo Leppänen, Tapio Fabritius
Flexible electronics is an emerging thin film based technology enabling completely new types of products and applications compared to conventional electronics. Since the quality of films defines the functionality of fabricated devices, the lack of suitable online manufacturing quality assessment tools has been identified to be a critical bottleneck while upscaling the volume and the yield of thin film electronics manufacturing. In order to solve that problem, a synchronized thermography (ST) based online measurement system was built...
January 22, 2018: Optics Express
https://www.readbyqxmd.com/read/29400581/infrared-thermography-as-control-of-handheld-ipl-device-for-home-use
#15
Hrvoje Glavaš, Marko Vukobratović, Tomislav Keser
Infrared thermography as contactless method for determining the temperature distribution on the surface is used for analyzing the impact of intense pulsed light hair removal device (IPL) on the skin. Depth of light penetration depending of wavelength is described as well as absorption curves and IPL impulse shapes. Energy balance and IPL impulse influence on the skin is analyzed. Melanin temperature rise by different fluence operation and temperature distribution in the modeled hair is used in order to determine overall skin temperature rise...
February 5, 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29396205/the-identification-of-higher-forefoot-temperatures-associated-with-peripheral-arterial-disease-in-type-2-diabetes-mellitus-as-detected-by-thermography
#16
Alfred Gatt, Kevin Cassar, Owen Falzon, Christian Ellul, Kenneth P Camilleri, Jean Gauci, Stephen Mizzi, Anabelle Mizzi, Cassandra Sturgeon, Nachiappan Chockalingam, Cynthia Formosa
AIMS: The purpose of this study was to investigate whether heat emitted from the feet of patients with type 2 diabetes (DM) and peripheral arterial disease (PAD) differed from those with type 2 diabetes without complications (DM). METHODS: A non-experimental, comparative prospective study design was employed in a tertiary referral hospital. Out of 223 randomly selected participants (430 limbs) who were initially tested, 62 limbs were categorized as DM+PAD and 22 limbs as DM without PAD...
January 29, 2018: Primary Care Diabetes
https://www.readbyqxmd.com/read/29390710/thickness-measurement-by-two-sided-step-heating-thermal-imaging
#17
Xiaoli Li, Ning Tao, J G Sun, Cunlin Zhang, Yuejin Zhao
Infrared thermal imaging is a promising nondestructive technique for thickness prediction. However, it is usually thought to be only appropriate for testing the thickness of thin objects or near-surface structures. In this study, we present a new two-sided step-heating thermal imaging method which employed a low-cost portable halogen lamp as the heating source and verified it with two stainless steel step wedges with thicknesses ranging from 5 mm to 24 mm. We first derived the one-dimensional step-heating thermography theory with the consideration of warm-up time of the lamp, and then applied the nonlinear regression method to fit the experimental data by the derived function to determine the thickness...
January 2018: Review of Scientific Instruments
https://www.readbyqxmd.com/read/29384856/use-of-noncontact-infrared-thermography-to-measure-temperature-in-children-in-a-triage-room
#18
Emel Ataş Berksoy, Özlem Bağ, Selçuk Yazici, Tanju Çelik
We compared the accuracy and utility of 3 infrared (IFR) thermographs fitted with axillary digital thermometers used to measure temperature in febrile and afebrile children admitted to an emergency triage room.A total of 184 febrile and 135 afebrile children presenting to a triage room were consecutively evaluated. Axillary temperature was recorded using a digital electronic thermometer. Simultaneously, IFR skin scans were performed on the forehead, the neck (over the carotid artery), and the nape by the same nurse...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29369378/heat-transfer-analysis-and-resolution-quantification-of-active-dynamic-thermography-through-human-skin
#19
Nicholas J Prindeze, Yvette V L Mann, Tony G Feric, Timothy R Currie, Bonnie C Carney, Lauren T Moffatt, Murray H Loew, Jeffrey W Shupp
OBJECTIVES: Active dynamic thermography (ADT) is a non-contact imaging technique that characterizes non-homogeneities in thermal conductance through objects as a response to applied energy stimulus. The aim of this study was to (i) develop a heat transfer model to define the relationship between thermal stimulation and resolution and (ii) empirically quantify the resolution an ADT imaging system can detect through a range of depths of human skin. MATERIALS AND METHODS: A heat transfer model was developed to describe a thermally non-conductive object below a sheet of skin...
January 25, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29351240/machine-learning-and-infrared-thermography-for-fiber-orientation-assessment-on-randomly-oriented-strands-parts
#20
Henrique Fernandes, Hai Zhang, Alisson Figueiredo, Fernando Malheiros, Luis Henrique Ignacio, Stefano Sfarra, Clemente Ibarra-Castanedo, Gilmar Guimaraes, Xavier Maldague
The use of fiber reinforced materials such as randomly-oriented strands has grown in recent years, especially for manufacturing of aerospace composite structures. This growth is mainly due to their advantageous properties: they are lighter and more resistant to corrosion when compared to metals and are more easily shaped than continuous fiber composites. The resistance and stiffness of these materials are directly related to their fiber orientation. Thus, efficient approaches to assess their fiber orientation are in demand...
January 19, 2018: Sensors
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