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infrared thermography

Carina Barbosa Pereira, Xinchi Yu, Michael Czaplik, Vladimir Blazek, Boudewijn Venema, Steffen Leonhardt
Diverse studies have demonstrated the importance of monitoring breathing rate (BR). Commonly, changes in BR are one of the earliest and major markers of serious complications/illness. However, it is frequently neglected due to limitations of clinically established measurement techniques, which require attachment of sensors. The employment of adhesive pads or thoracic belts in preterm infants as well as in traumatized or burned patients is an additional paramount issue. The present paper proposes a new robust approach, based on data fusion, to remotely monitor BR using infrared thermography (IRT)...
October 24, 2016: Journal of Clinical Monitoring and Computing
Jill Cox, Loretta Kaes, Miguel Martinez, Daniel Moles
Skin temperature may help prospectively determine whether an area of skin discoloration will evolve into necrosis. A prospective, observational study was conducted in 7 skilled nursing facilities to determine if skin temperature measured using infrared thermography could predict the progression of discolored intact skin (blanchable erythema, Stage 1 pressure ulcer, or sus- pected deep tissue injury [sDTI]) to necrosis and to evaluate if nurses could effectively integrate thermography into the clinical setting...
October 2016: Ostomy/wound Management
Seetharam Shiva Prasad, L Ramachandra, Vijay Kumar, Aniket Dave, Lalit K Mestha, Krithika Venkatarmani
BACKGROUND: Thermographic imaging is a non-invasive and radiation free imaging modality that measures the infrared radiation released by the body. Recently, there is a renewed interest regarding the scope of thermal imaging for breast cancer. OBJECTIVE: To evaluate the efficacy of thermographic breast imaging in detecting breast cancer. METHODS: A Prospective observational study was carried out from January 2014 to December 2014 at Kasturba Hospital, Manipal, India...
October 17, 2016: Breast Disease
Nagesh D Patil, Prathamesh G Bange, Rajneesh Bhardwaj, Atul Sharma
Effects of substrate temperature, substrate wettability and particles concentration are experimentally investigated for evaporation of a sessile water droplet containing colloidal particles. Time-varying droplet shapes and temperature of the liquid-gas interface are measured using high-speed visualization and infrared thermography, respectively. The motion of the particles inside the evaporating droplet is qualitatively visualized by an optical microscope and profile of final particle deposit is measured by an optical profilometer...
October 19, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
Laura Clara Grandi, Eugenio Heinzl
The data described here relate to the article entitled "The effect of pleasant touch on nose skin temperature, heart rate and heart rate variability: preliminary results in a male laboratory rhesus monkey" (Grandi and Heinzl, 2016) [1]. The cited paper and article here present additional material which represents the first evidence of the effect of pleasant touch in non-human primates in terms of skin temperature change, as recorded by means of infrared thermography. The sweep is considered a pleasant touch for monkeys...
December 2016: Data in Brief
Junyoung Jo, Hyunho Kim
This retrospective study aimed to evaluate the differences in abdominal temperature (AT) between fertile (n=206; age) and infertile (n=250) women between the ages of 30 and 39 years. We evaluated the differences in two distinctive skin temperatures by thermography: ΔT1 (CV8 index) - difference in temperature between the mid-abdomen (CV8 acupuncture area) and ventral upper arm (VUA) and ΔT2 (CV4 index) - difference in temperature between the lower abdomen (CV4 acupuncture area) and VUA. The results indicated that the ΔT1 and ΔT2 of infertile women were significantly lower (by 1...
October 2016: Journal of Thermal Biology
Lin Niu, Shao-Jie Dong, Ting-Ting Kong, Rong Wang, Rui Zou, Qi-Da Liu
During eating, the teeth usually endure the sharply temperature changes because of different foods. It is of importance to investigate the heat transfer and heat dissipation behavior of the dentino-enamel junction (DEJ) of human tooth since dentine and enamel have different thermophysical properties. The spatial and temporal temperature distributions on the enamel, dentine, and pulpal chamber of both the human tooth and its discontinuous boundaries, were measured using infrared thermography using a stepped temperature increase on the outer boundary of enamel crowns...
2016: PloS One
Aleksandr Livievich Urakov, Anton Aleksandrovic Kasatkin, Natalia Aleksandrovna Urakova, Tatiana Viktorovna Urakova
No abstract text is available yet for this article.
July 2016: Journal of Pharmacology & Pharmacotherapeutics
Marwan Katurji, Peyman Zawar-Reza
We apply the principles of atmospheric surface layer dynamics within a vineyard canopy to demonstrate the use of forward-looking infrared cameras measuring surface brightness temperature (spectrum bandwidth of 7.5 to 14 μm) at a relatively high temporal rate of 10 s. The temporal surface brightness signal over a few hours of the stable nighttime boundary layer, intermittently interrupted by periods of turbulent heat flux surges, was shown to be related to the observed meteorological measurements by an in situ eddy-covariance system, and reflected the above-canopy wind variability...
2016: Sensors
Kenneth E Games, Joni M Lakin, John C Quindry, Wendi H Weimar, JoEllen M Sefton
INTRODUCTION: Despite significant investment into the development and improvement of military helicopter seat systems, military aviators continue to report seat system related pain and discomfort during prolonged missions. METHODS: Using a factorial repeated measures design, 15 healthy subjects completed the study, in which focal pressure was applied to two locations on the sitting surfaces of the body (ischial tuberosity and middle of the posterior thigh). Pressure was applied using a purpose-built pressure application system allowing subjects to sit in a position mimicking the sitting position in the UH-60 Black Hawk helicopter...
August 2016: Aerospace Medicine and Human Performance
David Padilla-Valverde, Susana Sanchez-Garcia, Esther García-Santos, Carlos Marcote-Ibañez, Mercedes Molina-Robles, Jesús Martín-Fernández, Pedro Villarejo-Campos
PURPOSE: To determine the effectiveness of thermography to control the distribution of abdominal temperature in the development of a closed chemohyperthermia model Materials and Methods: For thermographic analysis, we divided the abdominopelvic cavity into nine regions according to a modification of carcinomatosis peritoneal index. A difference of 2.5º C between and within the quadrants, and thermographic colors, were used as asymmetric criteria. Preclinical study: Rats Model: Six athymic nude rats, male, rnu/rnu...
September 16, 2016: International Journal of Hyperthermia
Hannes Seidel, Christian Schunk, Michael Matiu, Annette Menzel
With recent climate changes, Scots pine (Pinus sylvestris L.) forests have been affected by die-off events. Assisted migration of adapted provenances mitigates drought impacts and promotes forest regeneration. Although suitable provenances are difficult to identify by traditional ecophysiological techniques, which are time consuming and invasive, plant water status can be easily assessed by infrared thermography. Thus, we examined the stress responses of 2-year-old potted Scots pine seedlings from six provenances (Bulgaria, France, Germany, Italy, Poland, and Spain) based on two thermal indices (crop water stress index and stomatal conductance index)...
2016: Frontiers in Plant Science
Markus Notter, Helmut Piazena, Peter Vaupel
PURPOSE: Evaluation of the efficacy and toxicity of a new setup of thermographically controlled water-filtered infra-red-A (wIRA) superficial hyperthermia (HT) combined with hypofractionated re-irradiation (re-RT) to treat large-sized breast cancer recurrences. METHODS: Records of 73 heavily pre-irradiated patients with 103 treatment regions, treated from September 2009 to July 2015 were retrospectively analysed. Sixty-four patients with macroscopic disease were treated with 94 regions including 46 patients with lymphangiosis carcinomatosa...
September 28, 2016: International Journal of Hyperthermia
M Farhat, P Y Chen, S Guenneau, H Bağcı, K N Salama, A Alù
A new cloaking mechanism, which makes enclosed objects invisible to diffusive photon density waves, is proposed. First, diffusive scattering from a basic core-shell geometry, which represents the cloaked structure, is studied. The conditions of scattering cancellation in a quasi-static scattering regime are derived. These allow for tailoring the diffusivity constant of the shell enclosing the object so that the fields scattered from the shell and the object cancel each other. This means that the photon flow outside the cloak behaves as if the cloaked object were not present...
August 2016: Proceedings. Mathematical, Physical, and Engineering Sciences
Stefanie Riemer, Luciana Assis, Thomas W Pike, Daniel S Mills
Infrared thermography can visualize changes in body surface temperature that result from stress-induced physiological changes and alterations of blood flow patterns. Here we explored its use for remote stress monitoring (i.e. removing need for human presence) in a sample of six pet dogs. Dogs were tested in a brief separation test involving contact with their owner, a stranger, and social isolation for two one-minute-periods. Tests were filmed using a thermographic camera set up in a corner of the room, around 7m from where the subjects spent most of the time...
September 5, 2016: Physiology & Behavior
C Childs, M R Siraj, F J Fair, A N Selvan, H Soltani, J Wilmott, T Farrell
OBJECTIVE: To develop and refine qualitative mapping and quantitative analysis techniques to define 'thermal territories' of the post-partum abdomen, the caesarean section site and the infected surgical wound. In addition, to explore women's perspectives on thermal imaging and acceptability as a method for infection screening. METHOD: Prospective feasibility study undertaken at a large University teaching hospital, Sheffield UK. Infrared thermal imaging of the abdomen was undertaken at the bedside on the first two days after elective caesarean section...
September 2016: Journal of Wound Care
Roberto Montanini, Antonino Quattrocchi, Sebastiano A Piccolo, Alessandra Amato, Stefano Trocino, Sabrina C Zignani, Massimiliano Lo Faro, Gaetano Squadrito
Electrochemical methods such as voltammetry and electrochemical impedance spectroscopy are effective for quantifying solid oxide fuel cell (SOFC) operational performance, but not for identifying and monitoring the chemical processes that occur on the electrodes' surface, which are thought to be strictly related to the SOFCs' efficiency. Because of their high operating temperature, mechanical failure or cathode delamination is a common shortcoming of SOFCs that severely affects their reliability. Infrared thermography may provide a powerful tool for probing in situ SOFC electrode processes and the materials' structural integrity, but, due to the typical design of pellet-type cells, a complete optical access to the electrode surface is usually prevented...
September 1, 2016: Applied Optics
C S Kang, H H Lee, S Oh, S G Lee, H M Wi, Y S Kim, H S Kim
An infrared (IR) thermography is the preferred diagnostic that can quantify heat flux by measuring the surface temperature distributions of the divertor plates. The IR thermography is successfully instrumented on Korea Superconducting Tokamak Advanced Research (KSTAR). In this study, finite volume method is considered to solve the heat conduction equations. 1D-, 2D-, and 3D models are developed and compared with various calculation algorithms, such as Duhamel's theorem and THEODOR. These comparisons show good agreement...
August 2016: Review of Scientific Instruments
Takuya Miyagawa, Toshinori Fujie, Ferdinandus Ferdinandus, Tat Thang Vo Doan, Hirotaka Sato, Shinji Takeoka
In this paper, a micro-thermography, temperature mapping with high spatial resolution, was established using luminescent molecules embedded ultra-thin polymeric films (nanosheets), and demonstrated in a small living animal to map out and visualize temperature shift due to animal's muscular activity. Herein, we report super flexible and self-adhesive (no need of glue) nano-thermosensor consisting of stacked two different polymeric nanosheets with thermo-sensitive (Eu-tris (dinaphthoylmethane)-bis-trioctylphosphine oxide: EuDT) and insensitive (Rhodamine 800) dyes being embedded...
August 29, 2016: ACS Applied Materials & Interfaces
Li Li Tan, Srinivasan Sanjay, Philip B Morgan
PURPOSE: To evaluate the efficacy of infrared (IR) ocular thermography in screening for dry eye disease (DED). METHODS: IR ocular thermography was performed on 62 dry eye and 63 age- and sex-matched control subjects. Marking of ocular surface and temperature acquisition was done using a novel 'diamond' demarcation method. 30 static- and 30 dynamic-metrics were studied and receiver operating characteristic curves were plotted. Efficacy of the temperature metrics in detecting DED were evaluated singly and in combination in terms of their area under the curve (AUC), Youden's index and discrimination power (DP)...
August 24, 2016: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
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