An Accurate and Reliable Method of Thermal Data Analysis in Thermal Imaging of the Anterior Knee for Use in Cryotherapy Research

Selfe, James; Hardaker, Natalie; Thewlis, Dominic; Karki, Anna

doi:10.1016/j.apmr.2006.08.346

Cited by 40 publications

(37 citation statements)

References 16 publications

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“…Thermal imaging interrater reliability has been previously described as good 21 with intraclass correlation coefficients ranging from .82 to .97. 22 The sample size was estimated based on our prior work measuring gait using another shear-reducing insole. We found a significantly shorter gait initiation (average 30%, P = .036, 95% CI = -2.2, -0.6 steps).…”

Section: Methodsmentioning

confidence: 99%

A Novel Shear Reduction Insole Effect on the Thermal Response to Walking Stress, Balance, and Gait

Wrobel

Peethambaran

et al. 2014

J Diabetes Sci Technol

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Reducing shear or side-to-side stresses on the plantar surfaces of feet in patients with diabetes is of particular interest lately. Conflicting clinical trial data of custom pressure-reducing footwear suggest that other offloading or footwear approaches may be necessary. 1,2 Gait lab studies suggest shear stresses are in a different location and magnitude versus age-matched controls. 3 Shear stresses in the foot also demonstrate a large association with thermal changes in response to walking in patients with diabetes and peripheral neuropathy. 4 Currently, there are no commercially available products to detect shear inside the shoe. However, relative temperature changes using thermometry may represent antecedent inflammatory changes from shear and pressure occurring prior to clinical expression of foot ulceration at the skin level. Purposeful "cooling" of the foot in clinical trials resulted in effect sizes of 4-to 10-fold reduction in reulceration. 5-7 Autonomic neuropathy can also affect thermoregulation of foot temperature and may be a more sensitive measure 8 for predicting foot ulcer. 9 In this study we measured sudomotor function for small fiber autonomic neuropathy. 10-12 Shear-reducing insoles that permit side-to-side motion in the device to reduce shear at the skin and deeper tissue level may make patients feel unsteady and less confident with walking. Therefore, in this study, we measured gait and balance changes under single and dual task conditions to explore for gait adaptations. In addition, these measurements may 546528D STXXX10.

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Section: Methodsmentioning

confidence: 99%

A Novel Shear Reduction Insole Effect on the Thermal Response to Walking Stress, Balance, and Gait

Wrobel

Peethambaran

et al. 2014

J Diabetes Sci Technol

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“…The superficial temperature distribution of the human body can be monitored by means of thermal imaging [18,19]. Thermal imaging is noncontact diagnosis method, and it is already applied to control the cryotherapy effects [16,17,[20][21][22]. The main goal of our study is to determine the optimal exposure time and the temperature of whole body cryotherapy by exploiting the thermal imaging.…”

Section: Introductionmentioning

confidence: 99%

Application of thermovision for estimation of the optimal and safe parameters of the whole body cryotherapy

Dębiec-Bąk

Skrzek

Podbielska

2012

J Therm Anal Calorim

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Exposure to the extreme low temperatures, ranging between -60 and -140°C, has many beneficial effects on the human body what is exploited for example in sport medicine, for treatment of locomotory system diseases or even some psychiatric disorders. To insure the safe treatment in a cryochamber, careful planning of the procedure and proper qualification of patients, is required. Cardiovascular system, especially skin vasculature plays the major role of the body response to the extreme cold. The changes in skin blood flow are reflected in changes of the temperature distribution. Therefore, the thermal imaging, which allows to analyze the temperature distribution on the human body, may be successfully exploited to examine the influence of extremely low temperatures on the skin vascular system. The aim of this work was to examine the temperature, blood pressure, and heart rate changes after the whole body cryotherapy in healthy subjects to determine the safety conditions of the treatment. 480 healthy students of the Wrocław University School of Physical Education were divided into two groups (each 240 persons). All subjects were exposed for 1-3 min to the extremely low temperatures: -60, -100, -120, and -140°C. In one group, the thermograms were recorded before and 5 and 30 min after the cryotherapy by means of ThermoVision A20 M thermal camera. In the other one, heart rate and blood pressure were measured before and 5 min after the cryotherapy. It was demonstrated that 3-min exposure in the cryochamber and the temperature -120°C are the optimal and safe cryotherapy parameters.

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“…Following the paper of Selfe et al, visualization without landmarks is not sufficiently reliable, so clinical and anatomic landmarks were identified through palpation (Selfe et al, 2006). The diameter and the distal (lower) margin of the patella were palpated to provide a standardised patient specific method that accommodates for individual anatomy.…”

Section: Methodsmentioning

confidence: 99%

“…In the field of veterinary medicine, where localization of pain sometimes is not possible, the IR diagnostic system, used in combination with a clinical examination and additional imaging modalities, provides highly effective results by pinpointing areas of suspicion (Brenner et al, 2006;Craciunescu et al, 2009;Infernuso et al, 2010;Kastberger et al, 2003;Poljak-Blazi et al, 2009;Stubsjoen et al, 2009). In human medicine, thermography has already been effectively used for non-invasive assessment of disease activity in osteoarthritis of the knee, hands and the tempomandibular joint (Boas, 1964;Fikackova and Ekberg, 2004;Salisbury et al, 1983;Selfe et al, 2006;Spalding et al, 2008), as well as in rheumatic arthritis (Boas, 1964;Brenner et al, 2006;Salisbury et al, 1983;Spalding et al, 2008), scleroderma, Raynaud´s disease (Chikura et al, 2010;Schlager et al, 2010), frozen shoulder or rotator cuff tendinitis (Vecchio et al, 1992), breast cancer (Arora et al, 2008;EtehadTavakol et al, 2010;Gescheit et al, 2010;Ng, 2009), reflex sympathetic dystrophy (Bruehl et al, 1996;Krumova et al, 2008;Niehof et al, 2008), sexual dysfunction (Seeley et al, 1980;Smith et al, 2009) and for the evaluation of patellofemoral arthralgia (kneecap pain) in athletes (Devereaux et al, 1986). However, in spite of being a reliable method for objective pain evaluation (Friedman, 1994;Han et al, 2010;Leclaire et al, 1996;Niehof et al, 2006;Pawl, 1991;…”

Section: Introductionmentioning

confidence: 99%

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Thermal Imaging as a Noninvasive Diagnostic Tool for Anterior Knee Pain Following Implantation of Artificial Knee Joints

Glehr¹,

Stibor²,

Sadoghi³

et al. 2011

Int. J. Thermo

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The variety of radiographic diagnostics used to diagnose pain localised close to metal implants is still limited. Especially magnetic resonance results can not be analysed because of artefacts. In this article we present for the first time a direct correlation between an increase in skin temperature and existent frontal (anterior) knee pain after implantation of artificial knee joints measured with thermography. In a standardised way 26 knees were analysed. Thermographic photos were taken from frontal, inner (medial) and outer (lateral) directions with a computer-assisted infrared thermograph. Temperatures in locations with pain were significantly higher compared to the reference field in inner location (median 0.95 °C, p=0.0043), as well as in outer location (median 0.5 °C, p=0.032). Median temperature difference between pain localization and localizations without pain was 0.7 °C and ranged from 0.1 °C to 1.7 °C. In the receiver operating characteristic (ROC) analysis the sensitivity of this method was 1.0 and specificity was 0.917. The evidence of a significant increase in skin temperature on the painful sites opens up the possibility to localize and assess pain more precisely in patients with joint prosthesis. We consider this novel, rapid, inexpensive and non-invasive technology to posses the potential to become a useful and objective tool for diagnosis of pain and inflammation and to generate digital data that can be stored and analysed in clinical practice.

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An Accurate and Reliable Method of Thermal Data Analysis in Thermal Imaging of the Anterior Knee for Use in Cryotherapy Research

Cited by 40 publications

References 16 publications

A Novel Shear Reduction Insole Effect on the Thermal Response to Walking Stress, Balance, and Gait

A Novel Shear Reduction Insole Effect on the Thermal Response to Walking Stress, Balance, and Gait

Application of thermovision for estimation of the optimal and safe parameters of the whole body cryotherapy

Thermal Imaging as a Noninvasive Diagnostic Tool for Anterior Knee Pain Following Implantation of Artificial Knee Joints

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