Thematische Bibliographien / Measurement forehead temperature

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Auswahl der wissenschaftlichen Literatur zum Thema „Measurement forehead temperature“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 1. Februar 2022

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Zeitschriftenartikel zum Thema "Measurement forehead temperature"

Shi, Kuanlong, Jiaxi Zhang und Jiawen Wang. „Investigation on the Application Value of Infrared Forehead Temperature Gun in Body Temperature Screening of New Crown Epidemic“. Modern Electronic Technology 5, Nr. 1 (06.05.2021): 20. http://dx.doi.org/10.26549/met.v5i1.6506.

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The outbreak of the novel coronavirus pneumonia has had a great impact on the life safety of our people and social production activities. Therefore, it is very important and meaningful to analyze the application value of infrared forehead thermometers in body temperature screening under the new crown pneumonia epidemic and propose improved measures for body temperature detection. This paper summarizes the questionnaire on the application value of infrared forehead thermometer in body temperature screening and the results of staff interviews, and analyzes the principle of infrared forehead thermometer temperature measurement to explain the factors that affect the accuracy of temperature measurement results. Finally, it is concluded that the reflected radiation of the environment and the temperature measurement distance affect the accuracy of the temperature measurement results of the infrared forehead gun.

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Malawi, Imtinan, Thamer Alsohabani, Mashael Aleidan, Nawa Al shahrani, Adel Karairi, Bandr Mzahim und Sharafaldeen Bin Nafisah. „Wrist and Forehead Temperature Measurement as Screening Methods During the COVID-19 Pandemic“. Journal of Medicine, Law & Public Health 1, Nr. 2 (01.05.2021): 26–30. http://dx.doi.org/10.52609/jmlph.v1i2.12.

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Background: Temperature screening checkpoints have become widely distributed during the COVID-19 pandemic, using various contactless methods of temperature measurement, including wrist and forehead measurement. Aim: In this study we aim to investigate the sensitivity and specificity of these two temperature measurement methods – wrist and forehead – compared with the standards of sublingual or axillary measurement. We also aim to investigate the influence of age, gender, device brand and diurnal effect on the temperature reading. Methods: Participants were randomly assigned to one of two groups, each group using a different temperature measurement device. All participants had their forehead and wrist temperature measured, and this was compared to their axillary or sublingual readings. Results: The area under the curve for wrist measurement was 0.49 (95% CI 0.34 and 0.64), p>0.05, with a sensitivity of 46.2% and specificity of 53.3%, while the area under the curve for forehead measurement was 0.70 (95% CI 0.51, 0.89), p<0.05, with a sensitivity of 23.1% and specificity of 76.9%, PPV 1.59% and NPV 97.7%. Conclusion: Wrist and forehead temperature measurement is not accurate in detecting fever during the ongoing COVID-19 pandemic. Although forehead measurement is also not an ideal method, it nevertheless appears more consistent than wrist measurement.

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Pavlovic, Momcilo, Nedeljko Radlovic, Zoran Lekovic und Karolina Berenji. „Comparison of different methods of temperature measurement in children“. Medical review 61, Nr. 11-12 (2008): 615–19. http://dx.doi.org/10.2298/mpns0812615p.

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Introduction The consequences of failing to notice fever in children can be serious. On the other hand, false positive reading can result in unnecessary investigation or diagnostic approach. The aim of this study was to compare different ways of body temperature measurement. Material and methods This prospective study was carried out on Pediatric Department of General Hospital in Subotica during 10 months (March-December 2006). In 263 children aged 1 month to 18 years of age, the body temperature was obtained from 4 measurement sites: tactile assessment, forehead and ear by electronic thermometer, rectal temperature in small children (up to 2 years of age) or axillar temperature in older children by mercury thermometer. Tympanic thermometry was considered as a standard for fever detection. Results The sensitivity of rectal temperature to detect fever is 46.67%, while specificity is 92.19%. The sensitivity of fever detection by electronic thermometry on the forehead is lower according to rectal thermometry - 36.08%, while specificity is 95.18%. The lowest values of sensitivity are recorded in axillar thermometry (35.82%), specificity is 90.20%. The correlation coefficient is higher between tympanic and rectal temperature measurement (r=0.5076, p<0.0005), than between tympanic and forehead measurements (r=0.5076, p<0,0005), while the lowest was between tympanic and axillar measurement sites (r=0.4933, p<0.0005). Conclusions The results of our study and literature data show that the most accurate methods of thermometry are rectal measurement of body temperature in small children and tympanic thermometry in children over 2 years of age.

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Chen, Hsuan-Yu, Andrew Chen und Chiachung Chen. „Investigation of the Impact of Infrared Sensors on Core Body Temperature Monitoring by Comparing Measurement Sites“. Sensors 20, Nr. 10 (19.05.2020): 2885. http://dx.doi.org/10.3390/s20102885.

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Many types of thermometers have been developed to measure body temperature. Infrared thermometers (IRT) are fast, convenient and ease to use. Two types of infrared thermometers are uses to measure body temperature: tympanic and forehead. With the spread of COVID-19 coronavirus, forehead temperature measurement is used widely to screen people for the illness. The performance of this type of device and the criteria for screening are worth studying. This study evaluated the performance of two types of tympanic infrared thermometers and an industrial infrared thermometer. The results showed that these infrared thermometers provide good precision. A fixed offset between tympanic and forehead temperature were found. The measurement values for wrist temperature show significant offsets with the tympanic temperature and cannot be used to screen fevers. The standard operating procedure (SOP) for the measurement of body temperature using an infrared thermometer was proposed. The suggestion threshold for the forehead temperature is 36 °C for screening of fever. The body temperature of a person who is possibly ill is then measured using a tympanic infrared thermometer for the purpose of a double check.

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Brandes, Ivo F., Thorsten Perl, Martin Bauer und Anselm Bräuer. „Evaluation of a novel noninvasive continuous core temperature measurement system with a zero heat flux sensor using a manikin of the human body“. Biomedical Engineering / Biomedizinische Technik 60, Nr. 1 (01.01.2015): 1–9. http://dx.doi.org/10.1515/bmt-2014-0063.

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AbstractReliable continuous perioperative core temperature measurement is of major importance. The pulmonary artery catheter is currently the gold standard for measuring core temperature but is invasive and expensive. Using a manikin, we evaluated the new, noninvasive SpotOn™ temperature monitoring system (SOT). With a sensor placed on the lateral forehead, SOT uses zero heat flux technology to noninvasively measure core temperature; and because the forehead is devoid of thermoregulatory arteriovenous shunts, a piece of bone cement served as a model of the frontal bone in this study. Bias, limits of agreements, long-term measurement stability, and the lowest measurable temperature of the device were investigated. Bias and limits of agreement of the temperature data of two SOTs and of the thermistor placed on the manikin’s surface were calculated. Measurements obtained from SOTs were similar to thermistor values. The bias and limits of agreement lay within a predefined clinically acceptable range. Repeat measurements differed only slightly, and stayed stable for hours. Because of its temperature range, the SOT cannot be used to monitor temperatures below 28°C. In conclusion, the new SOT could provide a reliable, less invasive and cheaper alternative for measuring perioperative core temperature in routine clinical practice. Further clinical trials are needed to evaluate these results.

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Schmid, Simone M., Wolfgang Büscher und Julia Steinhoff-Wagner. „Suitability of Different Thermometers for Measuring Body Core and Skin Temperatures in Suckling Piglets“. Animals 11, Nr. 4 (02.04.2021): 1004. http://dx.doi.org/10.3390/ani11041004.

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Monitoring the temperature of piglets after birth is critical to ensure their well-being. Rectal temperature measurement is time-consuming, requires fixation of the animal and is stressful for piglets. This study aims to evaluate the effectiveness of infrared thermometry and thermography as compared to rectal temperatures. We investigated digital thermometers for rectal measurements, infrared ear thermometers, infrared forehead thermometers, infrared laser thermometers and an infrared camera during field trials with piglets aged 1–13 days. Temperatures differed between the left and right ear and ear base (p < 0.01), but not between temples. Three forehead and laser devices yielded different temperatures (p < 0.01). Temperatures assessed with a laser thermometer decreased with distance from the target (p < 0.01). The highest correlation observed was between the rectal and tympanic temperatures (r = 0.89; p < 0.01). For temperatures assessed with the camera, inner thigh and abdomen correlated most closely to core temperature (0.60 ≤ r ≤ 0.62; p < 0.01). Results indicate that infrared ear thermometry commonly used in humans is also suited for assessing temperature in piglets. The inner thigh and abdomen seem promising locations for estimating core temperature with an infrared camera, but this approach needs to be adapted to reduce time exposure and stress for the piglets to be used under practical conditions.

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Ganio, Matthew S., Christopher M. Brown, Douglas J. Casa, Shannon M. Becker, Susan W. Yeargin, Brendon P. McDermott, Lindsay M. Boots, Paul W. Boyd, Lawrence E. Armstrong und Carl M. Maresh. „Validity and Reliability of Devices That Assess Body Temperature During Indoor Exercise in the Heat“. Journal of Athletic Training 44, Nr. 2 (01.03.2009): 124–35. http://dx.doi.org/10.4085/1062-6050-44.2.124.

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Abstract Context: When assessing exercise hyperthermia outdoors, the validity of certain commonly used body temperature measuring devices has been questioned. A controlled laboratory environment is generally less influenced by environmental factors (eg, ambient temperature, solar radiation, wind) than an outdoor setting. The validity of these temperature measuring devices in a controlled environment may be more acceptable. Objective: To assess the validity and reliability of commonly used temperature devices compared with rectal temperature in individuals exercising in a controlled, high environmental temperature indoor setting and then resting in a cool environment. Design: Time series study. Setting: Laboratory environmental chamber (temperature = 36.4 ± 1.2°C [97.5 ± 2.16°F], relative humidity = 52%) and cool laboratory (temperature = approximately 23.3°C [74.0°F], relative humidity = 40%). Patients or Other Participants: Fifteen males and 10 females. Intervention(s): Rectal, gastrointestinal, forehead, oral, aural, temporal, and axillary temperatures were measured with commonly used temperature devices. Temperature was measured before and 20 minutes after entering the environmental chamber, every 30 minutes during a 90-minute treadmill walk in the heat, and every 20 minutes during a 60-minute rest in mild conditions. Device validity and reliability were assessed with various statistical measures to compare the measurements using each device with rectal temperature. A device was considered invalid if the mean bias (average difference between rectal and device temperatures) was more than ±0.27°C (±0.50°F). Main Outcome Measure(s): Measured temperature from each device (mean and across time). Results: The following devices provided invalid estimates of rectal temperature: forehead sticker (0.29°C [0.52°F]), oral temperature using an inexpensive device (−1.13°C [−2.03°F]), temporal temperature measured according to the instruction manual (−0.87°C [−1.56°F]), temporal temperature using a modified technique (−0.63°C [−1.13°F]), oral temperature using an expensive device (−0.86°C, [−1.55°F]), aural temperature (−0.67°C, [−1.20°F]), axillary temperature using an inexpensive device (−1.25°C, [−2.24°F]), and axillary temperature using an expensive device (−0.94°F [−1.70°F]). Measurement of intestinal temperature (mean bias of −0.02°C [−0.03°F]) was the only device considered valid. Devices measured in succession (intestinal, forehead, temporal, and aural) showed acceptable reliability (all had a mean bias = 0.09°C [0.16°F] and r ≥ 0.94]). Conclusions: Even during laboratory exercise in a controlled environment, devices used to measure forehead, temporal, oral, aural, and axillary body sites did not provide valid estimates of rectal temperature. Only intestinal temperature measurement met the criterion. Therefore, we recommend that rectal or intestinal temperature be used to assess hyperthermia in individuals exercising indoors in the heat.

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Sullivan, Stacey JL, Nathanael Seay, Liang Zhu, Jean E. Rinaldi, Prasanna Hariharan, Oleg Vesnovsky und LD Timmie Topoleski. „Performance characterization of non-contact infrared thermometers (NCITs) for forehead temperature measurement“. Medical Engineering & Physics 93 (Juli 2021): 93–99. http://dx.doi.org/10.1016/j.medengphy.2021.05.007.

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Liu, Chuan-Chuan, Ray-E. Chang und Wen-Cheng Chang. „Limitations of Forehead Infrared Body Temperature Detection for Fever Screening for Severe Acute Respiratory Syndrome“. Infection Control & Hospital Epidemiology 25, Nr. 12 (Dezember 2004): 1109–11. http://dx.doi.org/10.1086/502351.

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AbstractWe investigated alternative measurement methodology for infrared body thermometry to increase accuracy for outdoor fever screening during the 2003 SARS epidemic. Our results indicate that the auditory meatus temperature is a superior alternative compared with the forehead body surface temperature due to its close approximation to the tympanic temperature.

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Franconi, Ilaria, Carmen La Cerra, Anna Rita Marucci, Cristina Petrucci und Loreto Lancia. „Digital Axillary and Non-Contact Infrared Thermometers for Children“. Clinical Nursing Research 27, Nr. 2 (08.11.2016): 180–90. http://dx.doi.org/10.1177/1054773816676538.

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Axillary digital thermometers (ADTs) and non-contact (infrared) forehead thermometers (NCIFTs) are commonly used in pediatric settings, where an incorrect body temperature measurement may delay treatments or lead to incorrect diagnoses and therapies. Several studies comparing ADT or NCIFT with other methods have found conflicting results. To investigate whether ADT and NCIFT can be used interchangeably, a comparative observational study was conducted involving 205 children aged 0 to 14 years who were consecutively admitted to the pediatric emergency department. The Bland–Altman plot illustrated agreement between the two methods. A total of 217 pairs of measurements were compared; axillary measurements showed average values significantly higher than forehead measurements (37.52°C and 37.12°C; t = 7.42, p = .000), with a mean difference of 0.41°C between the two methods (range = −1.80 and +2.40). In this setting and population, ADT and NCIFT cannot be used interchangeably.

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Dissertationen zum Thema "Measurement forehead temperature"

Roman, Matej. „Automatizované měření teploty v boji proti COVID“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442439.

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This thesis focuses on the development of an open source software capable of automatic face detection in an image captured by a thermal camera, followed by a temperature measuring. This software is supposed to aid in the COVID-19 pandemics. The developed software is independent of used thermal camera. In this thesis, I am using TIM400 thermal camera. The implementation of the face detection was achieved by an OpenCV module. The methods tested were Template Matching, Eigen Faces, and Cascade Classifier. The last-mentioned had the best results, hence was used in the final version of the software. Cascade Classifier is looking for the eyes and their surrounding area in the image, allowing the software to subsequently measure the temperature on the surface of one's forehead. One can therefore be wearing a face mask or a respirator safely. The temperature measuring works in real time and the software is able to capture several people at once. It then keeps a record of the temperature of each measured individual as well as the time of the measurement. The software as a whole is a part of an installation file compatible with the Windows operating system. The functionality of this software was tested – the video recordings are included in this thesis.

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Konferenzberichte zum Thema "Measurement forehead temperature"

Lin, Sheng-Hsiung, und Ching-Chun Lin. „Automatic Login System for Forehead Temperature Measurement“. In 2020 International Symposium on Computer, Consumer and Control (IS3C). IEEE, 2020. http://dx.doi.org/10.1109/is3c50286.2020.00047.

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Yuan, Z., X. Hao, F. Wang, X. Tu, C. Bai und L. Ran. „Statistical relationship between human axillary and forehead temperatures“. In TEMPERATURE: ITS MEASUREMENT AND CONTROL IN SCIENCE AND INDUSTRY, VOLUME 8: Proceedings of the Ninth International Temperature Symposium. AIP, 2013. http://dx.doi.org/10.1063/1.4819677.

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Pavlin, B., G. Carabin, G. Pernigotto, A. Gasparella und Renato Vidoni. „An Embedded Mechatronic Device for Real-Time Monitoring and Prediction of Occupants’ Thermal Comfort“. In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87632.

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It is well recognized in the literature that thermal sensation and comfort are dependent on both core and skin temperatures. In particular, some regions of the human skin, such as the forehead, have a higher density of thermal receptors, giving a higher sensitivity to the skin temperature. Some studies suggest that the forehead skin temperature and its rate ofchange alone could potentially be a good indicator of one’s overall thermal comfort. To validate this claim, an idea for a smart sensor which would be able to read the occupants’ forehead temperature and other environmental parameters in a proximal way is here considered. Moreover, with the aim of exploiting the system not only in lab or test facility environments but, considering the 4.0 revolution, also in the building automation context, a non-invasive solution has been searched so as the occupants are not disturbed while the measurement is performed. Therefore, in this study, a new cheap and smart mechatronic sensor device for a non-invasive measurement of the occupants’ thermal comfort is proposed. The main components consist of a central unit, i.e. microprocessor, a small infrared sensor for thermal imaging, i.e a Lepton infrared camera by FLIR, as well as other sensors for measuring distance, humidity and temperature. The setup was imagined as the sensor being placed on the top of each desk, so it is not easily obstructed by a laptop or a similar object that can be found on top of the working surface. After the conceptual hardware definition and software development, an accurate experimental calibration has been performed exploiting an ad-hoc developed set-up based on a hot plate with an emissivity factor similar to the one of the human skin and with adjustable temperature. Finally, a first design for embedding the whole smart mechatronic system in a unique box has been developed and built.

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Augustine, Garrett, und Scott Augustine. „Accurate Non-Invasive Temperature Monitoring Device“. In 2017 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dmd2017-3476.

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Core temperature is one of the most tightly auto-regulated physiological processes. Anesthetic drugs compromise the body’s ability to thermoregulate. When core temperature is outside of the normothermia range, patients are at increased risk of myriad complications. Hypothermic patients are at higher risk of, among other things, increased wound infections2, increased blood loss3, increased ICU times and hospital stays2, higher mortality rates4, increased transfusion requirements3. “Even mildly hypothermic patients could suffer an increase in adverse outcomes that can add costs of as much as $2,500–$7,000 per patient.”5 These risks are great such that clinicians actively warm hypothermic patients to achieve normothermia. Given the importance of the core temperature on outcomes, there is a clear necessity for accurate core temperature measurement. Core temperature measurement is often misunderstood. Perhaps due to the pervasive home use of oral mercury thermometers to “take your temperature,” many wrongly assume that non-invasive core temperature is measured easily and accurately. Oral, axilla, nasal are all unreliable. Temporal/forehead and ear are particularly inaccurate. “Global authorities in anesthesiology and medicine have cited inadequacies with virtually all thermometry”6 False assurance or false alarm are both dangerous. There is currently no non-invasive way to reliably and accurately measure core temperature. Why is this? The peripheral compartment is not in equilibrium with core. Fat and other layers further complicate the matter. Fat has the thermal conductivity of oak, and thus non-invasive methods to measure core are as Abreu puts it “taking measurements on the outside surface of an oak cask to determine the temperature of its contents.”6 Laws of Thermodynamics notwithstanding, many still try. Invasive esophageal or rectal and to a lesser extent bladder, are the only way to accurately measure core. The fact is, in order to measure their patients’ core temperature vital sign accurately, clinicians have only available to them the medical equivalent of a meat thermometer. Intubated patients under general anesthesia are perfectly suited for invasive core temperature monitoring. They are not going to gag the esophageal stethoscope, nor would they find rectal or bladder probing uncomfortable in their unconsciousness. Clinicians may find probing mildly unpleasant and a minor time consumption, but once again, given the lack of alternatives, the only real option is to grin and bear it. General anesthesia is not without risks, especially with increasingly increasing patients, and as sedation or blocks become more popular, invasive core temperature monitoring is unpractical. This highlights the stark question: Is it possible to accurately and reliably ascertain core temperature non-invasively?

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