scholarly journals Evaluation of high resolution thermal imaging to determine the effect of vertebral fractures on associated skin surface temperature in children with osteogenesis imperfecta

2018 ◽  
Vol 56 (9) ◽  
pp. 1633-1643 ◽  
Author(s):  
Alexandra Fane De Salis ◽  
Reza Saatchi ◽  
Paul Dimitri
2017 ◽  
Vol 137 (5) ◽  
pp. S54 ◽  
Author(s):  
L. Ko ◽  
A. Raff ◽  
A. Garza-Mayers ◽  
A. Dobry ◽  
R. Anderson ◽  
...  

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S607-S607
Author(s):  
Michael Pulia ◽  
Rebecca Schwei ◽  
Edward Harwick ◽  
Ambar Haleem ◽  
Jamie Hess ◽  
...  

Abstract Background Cellulitis is misdiagnosed in up to 30% of cases, resulting in overuse of antibiotics. This represents a threat to patient safety and public health. Surface thermal imaging has been proposed as a tool to reduce errors in diagnosing cellulitis. The study objective was to compare skin surface temperature measurements between patients with cellulitis and pseudocellulitis. Methods We prospectively enrolled patients presenting to the emergency department (ED) with dermatologic lower extremity complaints that involved visible erythema. Using a thermal imaging camera, the maximum temperature value (Tmax) for the affected area of skin and corresponding area on an unaffected limb were captured. The Tmax gradient between the affected and unaffected limb was calculated. Gold standard diagnosis (cellulitis versus pseudocellulitis) was determined by consensus of a blinded, multidisciplinary physician review panel (two infectious disease, two dermatologists and two emergency medicine). Differences in temperature variables (Tmax and Tmax gradient) between cellulitis and pseudocellulitis were compared using t-tests. Results The sample included 204 participants, 59% male with an average age of 57 years. Based on expert panel consensus diagnosis, 92 (45%) of the participants had cellulitis. The cellulitis group had an average Tmax of 33.2°C and 30.2°C for affected and unaffected skin respectively, which was a significant difference of 2.9°C (CI: 2.5 to 3.6; p< 0.001). The difference in the Tmax gradients between patients with cellulitis and pseudocellulitis was 2.08°C (CI: 1.46-2.70; p< 0.001). Conclusion This represents the largest validation study of skin surface temperature differences between cellulitis and pseudocellulitis. Significant difference in temperature gradients between cases of cellulitis and pseudocellulitis suggests thermal imaging could be a useful diagnostic adjunct that can help differentiate these conditions. Such a modality could be particularly helpful in the ED setting where providers must balance diagnostic uncertainty with antimicrobial stewardship principles. Future work will identify the best performing temperature variables and determine optimal cutoff values for use in diagnostic algorithms. Disclosures All Authors: No reported disclosures


2018 ◽  
Vol 88 ◽  
pp. 239-244 ◽  
Author(s):  
M. Sathiyabarathi ◽  
S. Jeyakumar ◽  
A. Manimaran ◽  
Heartwin A. Pushpadass ◽  
M. Sivaram ◽  
...  

Author(s):  
Yang Yang ◽  
Jing Liu

This paper reports the effects of atherosclerosis plaque on the human cervicum skin surface temperature. The classical Pennes bioheat equation and a 3-D model consisting of cervical vertebra, muscle, and skin layer is adopted to characterize the heat transfer in the cervicum. Since the formation of atherosclerotic plaque is random, several parametric analyses are conducted to simulate actual situations. A medical far-infrared thermal imaging system is employed on two healthy human subjects to evaluate the feasibility of this technique. According to the simulations, there are variations in the temperature contours on the surface of the skin due to the axial variations in thermal parameters between healthy arterial intimae and atherosclerosis plaque. This suggests that far-infrared thermal imaging can be used to detect the marker safely via a noncontact way. Additional parametric studies indicated that the cervicum skin surface temperature distribution discloses the information regarding the plaque such as position, depth, pattern, quantity, and metabolic heat generation, etc. Furthermore, the external thermal conditions and calm physiological state can be implemented to enhance the detection of the plaque via mapping skin temperature. To test this strategy, a far-infrared imaging system was applied to record the dynamic thermal pictures on the cervicum of two human subjects, and the intentional cooling by the alcohol was proposed to improve detection. The thermograph reveals the surface effects of the main blood vessel and organs in the cervicum. The present study sets up a theoretical foundation for using noncontact far-infrared imaging method for a reliable assessment of atherosclerosis plaque without causing any wound or radiation to human body.


1990 ◽  
Vol 73 (3) ◽  
pp. 541-545 ◽  
Author(s):  
Eduardo H. Rubinstein ◽  
Daniel I. Sessler

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