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Paula F Zermoglio, Marcela K Castelo, Claudio R Lazzari
The increase in body temperature over that of the environment has been frequently reported in insects, in particular in relation with flight activity. Scarab beetles of the genus Cyclocephala living in tropical areas are known to exploit the heat produced by thermogenic plants, also producing heat by endothermy. Here, we report the first case of endothermy in a species of this genus living in a temperate region, Cyclocephala signaticollis. We characterised the phenomenon in this beetle using infrared thermography and exposing them to different thermal conditions...
April 20, 2018: Journal of Insect Physiology
Britney Jones, Imran Hassan, Ross T Tsuyuki, Marla Francisca Dos Santos, A S Russell, Elaine Yacyshyn
Rheumatoid arthritis is a common inflammatory disease that causes destruction of joints. Accurate recognition of active disease has significant implications in determining appropriate treatment; however, there is significant inter-rater variability in clinical joint assessment. This study aimed to assess the utility of thermographic imaging in the evaluation of inflammatory arthritis activity as an adjunct to clinical assessment. This was a cross-sectional study of 79 subjects recruited from the University of Alberta Outpatient Rheumatology clinic comparing the hand joints of 49 patients with rheumatoid arthritis (RA) diagnosed by American College of Rheumatology (ACR) criteria to 30 healthy volunteers...
April 20, 2018: Clinical Rheumatology
O Maillot, N Leduc, V Atallah, P Escarmant, A Petit, S Belhomme, P Sargos, V Vinh-Hung
PURPOSE: Radiotherapy is a common adjuvant treatment of breast cancer. Acute radiation-induced dermatitis is a frequent side effect. We hypothesized whether it is possible to capture the increase of local temperature as a surrogate of the inflammatory state induced by radiotherapy. We designed a prospective, observational, single-centre study to acquire data on temperature rise in the treated breast during the course of radiotherapy, establish a possible association with the occurrence of dermatitis and investigate the predictive value of temperature increase in future occurrences of radiation-induced dermatitis...
April 17, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
Leonard Walle, Hisham Fansa, Onno Frerichs
BACKGROUND: Thermography permits non-invasive examination and presentation of cutaneous temperature differences. When planning microvascular flaps, thermography may illustrate these differences and may portray patterns of blood circulation near to perforators. As an additional tool, thermography may enhance quality and diversity in free flaps. PATIENTS AND METHODS: In this prospective study, we examined 10 patients with 13 free DIEP-flaps for breast reconstruction...
April 2018: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
R O Moe, J Bohlin, A Flø, G Vasdal, H Erlandsen, E Guneriussen, E C Sjökvist, S M Stubsjøen
Footpad dermatitis is a condition that causes lesions on the plantar surface of the footpads in growing turkeys. Potential inflammatory processes and pain associated with increasing severity of footpad dermatitis raise animal welfare concerns. This study investigated whether the temperature of the plantar surface of the foot (the footpads and the entire plantar foot including interdigital membranes) assessed with infrared thermography reflects severity of mild footpad dermatitis as assessed with a Visual Analogue Scale in 80 turkey toms at 10 weeks of age...
April 17, 2018: Poultry Science
Natália C M Silva, Hirlaine A Castro, Leonardo C Carvalho, Érika C L Chaves, Ludmila O Ruela, Denise H Iunes
Objective: The purpose of this study was to evaluate the intraexaminer and interexaminer reliability of image assessment of infrared thermography of the plantar surface of people with diabetes mellitus. Methods: Fifty-one participants with diabetes were included. The interexaminer reliability (test) consisted of measuring the temperature of the plantar surface by 2 evaluators who separately performed the analysis of thermographic images. The intraexaminer reliability (retest) consisted of the revaluation of the images by a single evaluator 10 days after the first analysis...
March 2018: Journal of Chiropractic Medicine
Boris G Vainer
A search for robust noninvasive methods permitting to discern the respiration subtle peculiarities in mammals is a topical issue. A novel approach called "sorption-enhanced infrared thermography" (SEIRT), helping to solve this problem, is described. Its benefits spring from the integration of the infrared thermography (IRT) and chemical physics (phase transition heat release/absorption) within a single method. The SEIRT opportunities were verified in the investigation of 42 humans, 49 rats and 4 minipigs whose breathing waveforms were revealed to the last detail...
April 4, 2018: Annals of Biomedical Engineering
Jonathan P Robson, Pavlo Kokhanenko, Jean K Marshall, Anthony R Phillips, Jan van der Linden
Tissue perfusion during surgery is important in reducing surgical site infections and promoting healing. This study aimed to determine if insufflation of the open abdomen with heated, humidified (HH) carbon dioxide (CO2) increased visceral tissue perfusion and core body temperature during open abdominal surgery in a rodent model. Using two different rodent models of open abdominal surgery, visceral perfusion and core temperature were measured. Visceral perfusion was investigated using a repeated measures crossover experiment with rodents receiving the same sequence of two alternating treatments: exposure to ambient air (no insufflation) and insufflation with HH CO2...
2018: PloS One
Zhanqun Shi, Xiaoyu Xu, Jiaojiao Ma, Dong Zhen, Hao Zhang
Small cracks are common defects in steel and often lead to catastrophic accidents in industrial applications. Various nondestructive testing methods have been investigated for crack detection; however, most current methods focus on qualitative crack identification and image processing. In this study, eddy current pulsed thermography (ECPT) was applied for quantitative crack detection based on derivative analysis of temperature variation. The effects of the incentive parameters on the temperature variation were analyzed in the simulation study...
April 2, 2018: Sensors
Iván Francisco García-Tejero, Carlos José Ortega-Arévalo, Manuel Iglesias-Contreras, José Manuel Moreno, Luciene Souza, Simón Cuadros Tavira, Víctor Hugo Durán-Zuazo
Different tools are being implemented in order to improve the water management in agricultural irrigated areas of semiarid environments. Thermography has been progressively introduced as a promising technique for irrigation scheduling and the assessing of crop-water status, especially when deficit irrigation is being implemented. However, an important limitation is related to the cost of the actual cameras, this being a severe limitation to its practical usage by farmers and technicians. This work evaluates the potential and the robustness of a thermal imaging camera that is connected to smartphone (Flir One) recently developed by Flir Systems Inc...
March 31, 2018: Sensors
Mayra H Frediani, Cristiane S Pizzutto, Maíra B R Alves, Ricardo J G Pereira
Housing layers in battery cages is a practice still used by many countries but it has been criticized because of its influence on behavioral repertoire of birds. We investigated whether simple and affordable enrichment devices alone impact behavior, foot condition and performance of laying hens housed in conventional cages. Hens were divided into plain cages (CON), cages with perches (PER), and cages with tassels and scratch-pads (ENR), and parameters were evaluated before and after enrichment placement. After perch placement inactivity, drinking and competition for space reduced 35...
April 1, 2018: Journal of Applied Animal Welfare Science: JAAWS
Hannes Kulla, Irina Akhmetova, Sebastian Haferkamp, Mathias Röllig, Christiane Maierhofer, Klaus Rademann, Franziska Luise Emmerling
We present an in situ triple coupling of synchrotron X-ray diffraction with Raman spectroscopy, and thermography to study milling reactions in real time. This combination of methods allows a correlation of the structural evolution with temperature information. The temperature information is crucial for understanding both thermodynamics and reaction kinetics. Exemplarily, the reaction mechanism of three prototypical mechanochemical syntheses were elucidated. General trends regarding the temperature development during milling could be identified...
March 31, 2018: Angewandte Chemie
David Rodriguez Sanz, Marta Elena Losa Iglesias, Ricardo Becerro de Bengoa Vallejo, Patricia Palomo Lopez, Hector Beltran Alacreu, Cesar Calvo Lobo, Emmanuel Navarro Flores, Daniel Lopez Lopez
OBJECTIVES: To check how a thermal-IR camera can check skin temperature in Gastrocnemius-soleus Equinus condition and Non-Gastrocnemius-Soleus condition in youth soccer players and thus detect association between the extensibility of the triceps-surae (with Gastrocnemius-Soleus Equinus and Non-Gastrocnemius-Soleus Equinus) and the muscle temperature pattern. DESIGN: A Cross Sectional Study Secundary level of care. METHODS: Sample from an elite soccer academy in Madrid (Spain) 35 healthy male subjects (youth soccer-players) age 12...
March 30, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
Francesca Theuma, Kevin Cassar
No abstract text is available yet for this article.
April 2018: Journal of Vascular Surgery
Fábio Marcon Alfieri, Linamara Rizzo Battistella
BACKGROUND: Thermography is a safe, painless, and efficient method for checking the temperature of the skin. OBJECTIVE: Was to assess the pattern of skin temperature of healthy men, as well as to verify the reproducibility of the method. METHODS: This cross-sectional observational study was conducted with 30 men evaluated by thermography in two moments by using an infrared camera (FLIR +T650SC®). The skin temperature of 24 regions of interest (ROI) was measured...
March 16, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
Jan Maerten Smit, Vera L Negenborn, Sanne M Jansen, Mariëlle E H Jaspers, Ralph de Vries, Martijn W Heymans, Hay A H Winters, Ton G van Leeuwen, Margriet G Mullender, Nicole M A Krekel
BACKGROUND: Free flap survival relies on adequate tissue perfusion. We aim to give an overview of the available literature of all objective methods to intraoperatively assess free flap tissue perfusion, and the effects on (partial) flap loss. METHODS: A systematic review and meta-analysis according to the PRISMA guidelines was performed (PubMed, Cochrane Library, Embase) regarding English language articles. Meta-analyses were performed by pooling means and slopes using random-effect models...
March 25, 2018: Microsurgery
C Magalhaes, R Vardasca, J Mendes
BACKGROUND: Infrared thermal imaging captures the infrared radiation emitted by the skin surface. The thermograms contain valuable information, since the temperature distribution can be used to characterize physiological anomalies. Thus, the use of infrared thermal imaging (IRT) has been studied as a possible medical tool to aid in the diagnosis of skin oncological lesions. The aim of this review is to assess the current state of the applications of IRT in skin neoplasm identification and characterization...
March 25, 2018: Skin Research and Technology
Melissa N Hempstead, Joseph R Waas, Mairi Stewart, Vanessa M Cave, Mhairi A Sutherland
We evaluated alternatives to cautery disbudding of goat kids using physiological measures of immediate and longer-term pain. Fifty Saanen doe kids were randomly assigned to 1 of 5 treatments (n = 10/treatment): (1) cautery disbudding (CAUT), (2) caustic paste disbudding (CASP), (3) liquid nitrogen disbudding (CRYO), (4) clove oil injected into the horn bud (CLOV), or (5) sham disbudding (SHAM). Serum cortisol and haptoglobin concentrations were measured from blood samples collected immediately before treatment (baseline) and at 15, 30, 60, and 120 min and then again at 6 and 24 h post-treatment...
March 21, 2018: Journal of Dairy Science
Nelson Moussazadeh, Linton T Evans, Roxana Grasu, Laurence D Rhines, Claudio E Tatsui
Spinal laser interstitial thermal therapy has been developed as a minimally invasive modality to treat epidural spinal tumors percutaneously. The safe and effective use of this technology requires meticulous preoperative trajectory planning and an intraoperative workflow incorporating navigation and MR thermography. Instrumented stabilization can be performed during the same operation if needed. Operative considerations and technical aspects are reviewed. The video can be found here: ...
April 2018: Neurosurgical Focus
M Goren, Y Gat
In varicocele, there is venous flow of free testosterone (FT) directly from the testes into the prostate. Intraprostatic FT accelerates prostate cell production and prolongs cell lifespan, leading to the development of BPH. We show that in a large group of patients presenting with BPH, bilateral varicocele is found in all patients. A total of 901 patients being treated for BPH were evaluated for varicocele. Three diagnostic methods were used as follows: physical examination, colour flow Doppler ultrasound and contact liquid crystal thermography...
March 22, 2018: Andrologia
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