Thermometric diagnosis of peripheral nerve injuries

Yaish, F.; Cooper, J.; Craigen, M. A. C.

doi:10.1302/0301-620x.89b7.18968

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…5 Digital infrared thermal imaging, also known as thermography, is a procedure that detects infrared radiation, which is used to determine the temperature of the emitting surface producing a temperature pattern of the imaged surface. In the case of imaging the human body, the results correspond with the patient's skin surface temperature, which resembles the anatomic area under study; this information has been used for diagnosis, 6,7 for follow-up treatments, 8 and for the study of the physiological functions of healthy individuals. 9 Burn wounds cause vascular damage to the skin, which reduces the blood perfusion to the skin, affecting its surface temperature pattern.…”

Section: Introductionmentioning

confidence: 99%

Noninvasive determination of burn depth in children by digital infrared thermal imaging

et al. 2012

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Digital infrared thermal imaging is used to assess noninvasively the severity of burn wounds in 13 pediatric patients. A delta-T (ΔT) parameter obtained by subtracting the temperature of a healthy contralateral region from the temperature of the burn wound is compared with the burn depth measured histopathologically. Thermal imaging results show that superficial dermal burns (IIa) show increased temperature compared with their contralateral healthy region, while deep dermal burns (IIb) show a lower temperature than their contralateral healthy region. This difference in temperature is statistically significant (p<0.0001) and provides a way of distinguishing deep dermal from superficial dermal burns. These results show that digital infrared thermal imaging could be used as a noninvasive procedure to assess burn wounds. An additional advantage of using thermal imaging, which can image a large skin surface area, is that it can be used to identify regions with different burn depths and estimate the size of the grafts needed for deep dermal burns.

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Section: Introductionmentioning

confidence: 99%

Noninvasive determination of burn depth in children by digital infrared thermal imaging

et al. 2012

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Analytical solution of the Pennes equation for burn-depth determination from infrared thermographs

Romero‐Méndez

Jiménez-Lozano

Sen

et al. 2009

Mathematical Medicine and Biology

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A serious problem in emergency medicine is the correct evaluation of skin burn depth to make the appropriate choice of treatment. In clinical practice, there is no difficulty in classifying first- and third-degree burns correctly. However, differentiation between the IIa (superficial dermal) and IIb (deep dermal) wounds is problematic even for experienced practitioners. In this work, the use of surface skin temperature for the determination of the depth of second-degree burns is explored. An analytical solution of the 3D Pennes steady-state equation is obtained assuming that the ratio between burn depth and the burn size is small. The inverse problem is posed in a search space consisting of geometrical parameters associated with the burned region. This space is searched to minimize the error between the analytical and experimental skin surface temperatures. The technique is greatly improved by using local one-dimensionality to provide the shape of the burned region. The feasibility of using this technique and thermography to determine skin burn depth is discussed.

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Thermal signature of melanoma and non-melanoma skin cancers

González¹,

Castillo-Martínez²,

Valdés‐Rodríguez³

et al. 2012

Proceedings of the 2012 International Conference on Quantitative InfraRed Thermography

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In this work the thermal signature of melanoma and non-melanoma skin cancers is investigated in order to be used as a non-invasive aid in the diagnosis and the vascular assessment of these types of skin cancers. Thirty patients with melanoma and non-melanoma skin cancers were examined in order to obtain their temperature profile. The results show that there is a characteristic thermal signature for different types of skin neoplasms which not necessarily depend exclusively on their vascularity. Basal cell carcinomas and squamous cell carcinomas showed a larger range of vascularity, while the thermal profile remained basically constant for squamous cell carcinomas and varied a lot for basal cell carcinomas. In the case of melanomas they showed a high vascularity and an almost constant thermal signature which indicates that metabolic heat production is more relevant in assesing agressiveness. Basal cell carcinomas showed a big range in temperature profiles and a big range in vascularity, a correlation between vascularity and temperature profile was observed when analyzing each subtype of basal cell carcinoma, which indicates that the thermal behavior of basal cell carcinomas is highly dependent on their subtype. With squamous cell carcinoma a big range in vasculature was measured however the temperature range of their thermal profile did not change significantly which indicates that there might be a metabolic heat production-vasculature parameter that appears to remain constant. These results are a step forward in designing a thermal model for skin neoplasms.

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Thermometric diagnosis of peripheral nerve injuries

Cited by 3 publications

References 20 publications

Noninvasive determination of burn depth in children by digital infrared thermal imaging

Noninvasive determination of burn depth in children by digital infrared thermal imaging

Analytical solution of the Pennes equation for burn-depth determination from infrared thermographs

Thermal signature of melanoma and non-melanoma skin cancers

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