Standardization of infrared imaging

Ring, E. F. J.; Ammer, K.; Jung, Agam; Murawski, Piotr; Więcek, B.; Żuber, Janusz; Zwolenik, S.; Plassmann, P.; Jones, C.A.; Jones, B.F.

doi:10.1109/iembs.2004.1403378

Cited by 46 publications

(31 citation statements)

References 2 publications

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“…In our study, the highest average ΔT sk recorded in adults was 0.3 °C ( see Table 1 Some studies (Sivanandam et al, 2012;Ring et al,2004;Huygen et al, 2004;Zhu and Xin, 1999;Ben-Eliyahu, 1992) have focused on comparing the thermal profile of healthy people to that of people with an established diagnosis. The ΔT sk in healthy people was found to usually be below 0.5 °C.…”

Section: Contralateral Analysismentioning

confidence: 62%

Thermal body patterns for healthy Brazilian adults (male and female)

Marins

Fernandes

Cano

et al. 2014

Journal of Thermal Biology

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Thermal body patterns for healthy Brazilian adults (male and female), Journal of Thermal Biology, http://dx.doi.org/10. 1016/j.jtherbio.2014.02.020 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A B S T R A C TThe aim of this study was to establish the skin temperature (T sk ) thermal profile for the Brazilian population and to compare the differences between female and male Brazilian adults. A total of 117 female and 103 male were examined with a thermographic camera. The T sk of 24 body regions of interest (ROI) were recorded and analyzed. Male T sk results were compared to female and 10 ROI were evaluated with respect to the opposite side of the body (right vs. left) to identify the existence of significant contralateral T sk differences (ΔT sk ). When compared right to left, the largest contralateral ΔT sk was 0.3 °C. The female vs. male analysis yielded significant differences (p <0.05) in 13 of the 24 ROI. Thigh regions, both ventral and dorsal, had the highest ΔT sk by sex (≈ 1.0 °C). T sk percentile below P 5 or P 10 and over P 9o or P 95 may be used to characterize hypothermia and hyperthermia states, respectively. Thermal patterns and T sk tables 2 were established for Brazilian adult men and women for each ROI. There is a low T sk variation between sides of the body and gender differences were only significant for some ROIs. Keywords: Infrared thermographySkin temperature Thermal symmetry Brazilian profile HighlightsEstablishing a standard thermographic profile is crucial for an appropriate interpretation.Standardization of the protocols leads to obtain comparable results.Gender seems to be a determining factor for the skin temperature of the thigh, calf and dorsal arm.We suggest the value of 0.5 °C as a normal limit for contralateral ΔT sk.

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Section: Contralateral Analysismentioning

confidence: 62%

Thermal body patterns for healthy Brazilian adults (male and female)

Marins

Fernandes

Cano

et al. 2014

Journal of Thermal Biology

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“…The infrared radiation registering device Inframetrics PM290 camera (Inframetrics Corp., Billerica, Mass., USA) was used for registration. Data acquisition and analysis were conducted using software prepared by the Institute of Electronics, Technical University of Lodz [14]. The software was used to calculate mean temperature in the predefined skin areas and temperature time trend projections, thus enabling precise temperature change assessment in various parts of the body.…”

Section: Methodsmentioning

confidence: 99%

Cyclosporine A – treated nephrotic children show impaired vasodilatation but no autonomic neuropathy

Czupryniak¹,

Kałuzyńska²,

Półtorak-Krawczyk³

et al. 2010

aoms

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IntroductionThe aim of the study was to determine the effect of long-term cyclosporine A (CsA) treatment in children with idiopathic nephrotic syndrome on autonomic nerve function and peripheral blood flow assessed with thermography.Material and methodsThe study group consisted of 19 nephrotic children treated with cyclosporine A compared to 16 healthy children. The assessment of blood flow was made based on the results of thermographic measurements during the cold stress test by an infrared radiation registering camera. Ewing's battery of non-invasive tests was used to assess autonomic function.ResultsThe study showed diminished temperature increase after the cooling test in children with nephrotic syndrome treated with CsA. Sympathetic activity test results were comparable to healthy children.ConclusionsIt may be hypothesized that cyclosporine A administered even in low doses induces small vessel dysfunction measured by the thermographic method. This effect seems to be independent of sympathetic nervous system involvement, which was absent in cyclosporine A treated nephrotic children.

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“…This progress was fueled by better sensors [207,156], diagnostic procedure [221,222,169,223], more computing power and a deeper understanding of the processing algorithms [224,225,226,227]. Standardization and quality assurance efforts, such as the human skin temperature atlas database, have deepened and solidified this progress [228,229,230,231,232]. However, in terms of applicability of thermography based CAD systems, there is still a mixed picture.…”

Section: Discussionmentioning

confidence: 99%

Application of infrared thermography in computer aided diagnosis

Faust

Acharya

et al. 2014

Infrared Physics & Technology

100

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The invention of thermography, in the 1950s, posed a formidable problem to the research community: What is the relationship between disease and heat radiation captured with Infrared (IR) cameras? The research community responded with a continuous effort to find this crucial relationship. This effort was aided by advances in processing techniques, improved sensitivity and spatial resolution of thermal sensors. However, despite this progress fundamental issues with this imaging modality still remain. The main problem is that the link between disease and heat radiation is complex and in many cases even nonlinear. Furthermore, the change in heat radiation as well as the change in radiation pattern, which indicate disease, is minute. On a technical level, this poses high requirements on image capturing and processing. On a more abstract level, these problems lead to inter-observer variability and on an even more abstract level they lead to a lack of trust in this imaging modality. In this review, we adopt the position that these problems can only be solved through a strict application of scientific principles and objective performance assessment. Computing machinery is inherently objective; this helps us to apply scientific principles in a transparent way and to assess the performance results. As a consequence, we aim to promote thermography based ComputerAided Diagnosis (CAD) systems. Another benefit of CAD systems comes from the fact that the diagnostic accuracy is linked to the capability of the computing machinery and, in general, computers become ever more potent. We predict that a pervasive application of computers and networking technology in medicine will help us to overcome the shortcomings of any single imaging modality and this will pave the way for integrated health care systems which maximize the quality of patient care.

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Standardization of infrared imaging

Cited by 46 publications

References 2 publications

Thermal body patterns for healthy Brazilian adults (male and female)

Thermal body patterns for healthy Brazilian adults (male and female)

Cyclosporine A – treated nephrotic children show impaired vasodilatation but no autonomic neuropathy

Application of infrared thermography in computer aided diagnosis

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