scholarly journals Quantitative Analysis of Real-Time Infrared Thermography for the Assessment of Lumbar Sympathetic Blocks: A Preliminary Study

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3573
Author(s):  
Mar Cañada-Soriano ◽  
José Ignacio Priego-Quesada ◽  
Maite Bovaira ◽  
Carles García-Vitoria ◽  
Rosario Salvador Palmer ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Real Time ◽  
Infrared Thermography ◽  
Pain Syndrome ◽  
Lower Limbs ◽  
Maximum Temperature ◽  
P Value ◽  
Thermal Changes ◽  
Preliminary Study ◽  
Sympathetic Blocks

Lumbar sympathetic blocks (LSBs) are commonly performed to treat pain ailments in the lower limbs. LSBs involve injecting local anesthetic around the nerves. The injection is guided by fluoroscopy which is sometimes considered to be insufficiently accurate. The main aim was to analyze the plantar foot skin temperature data acquired while performing LSBs in patients with complex regional pain syndrome (CRPS) affecting the lower limbs. Forty-four LSBs for treating lower limb CRPS in 13 patients were assessed. Pain medicine physicians visualized the infrared thermography (IRT) video in real time and classified the performance depending on the observed thermal changes within the first 4 min. Thirty-two percent of the cases did not register temperature variations after lidocaine was injected, requiring the needle to be relocated. Differences between moments are indicated using the 95% confidence intervals of the differences (CI 95%), the Cohen effect size (ES) and the significance (p value). In successful cases, after injecting lidocaine, increases at minute 7 for the mean (CI 95% (1.4, 2.1 °C), p < 0.001 and ES = 0.5), at minute 5 for maximum temperature (CI 95% (2.3, 3.3 °C), p < 0.001 and ES = 0.6) and at minute 6 for SD (CI 95% (0.2, 0.3 °C), p < 0.001 and ES = 0.5) were observed. The results of our preliminary study showed that the measurement of skin temperature in real time by infrared thermography is valuable for assessing the success of lumbar sympathetic blocks.

scholarly journals Reproducibility of Skin Temperature Response after Cold Stress Test Using the Game Ready System: Preliminary Study

2021 ◽  
Vol 18 (16) ◽  
pp. 8295
Author(s):  
Jose Ignacio Priego-Quesada ◽  
Alexis Gandia-Soriano ◽  
Maria Teresa Pellicer-Chenoll ◽  
Ignacio Catalá-Vilaplana ◽  
Jose Luis Bermejo-Ruiz ◽  
...  
Keyword(s):  
Cold Stress ◽  
Skin Temperature ◽  
Stress Test ◽  
Intraclass Correlation ◽  
Temperature Response ◽  
Lower Limbs ◽  
Good Reproducibility ◽  
Preliminary Study ◽  
Logarithmic Equation ◽  
Cold Stress Test

The objective of this preliminary study was to determine the reproducibility of lower limbs skin temperature after cold stress test using the Game Ready system. Skin temperature of fourteen participants was measured before and after cold stress test using the Game Ready system and it was repeated the protocol in four times: at 9:00, at 11:00, at 19:00, and at 9:00 h of the posterior day. To assess skin temperature recovery after cold stress test, a logarithmic equation for each region was calculated, and constant (β0) and slope (β1) coefficients were obtained. Intraclass correlation coefficient (ICC), standard error (SE), and within-subject coefficient of variation (CV) were determined. No differences were observed between measurement times in any of the regions for the logarithmic coefficients (p > 0.38). Anterior thigh (β0 ICC 0.33–0.47; β1 ICC 0.31–0.43) and posterior knee (β0 ICC 0.42–0.58; β1 ICC 0.28–0.57) were the regions with the lower ICCs, and the other regions presented values with a fair and good reproducibility (ICC > 0.41). Posterior leg was the region with the better reproducibility (β0 ICC 0.68–0.78; β1 ICC 0.59–0.74; SE 3–4%; within-subject CV 7–12%). In conclusion, cold stress test using Game Ready system showed a fair and good reproducibility, especially when the posterior leg was the region assessed.

Skin Temperature Assessment During Lumbar Sympathetic Blocks by Infrared Thermography

2021 ◽  
Author(s):  
Mar Canada-Soriano ◽  
Jose Ignacio Priego-Quesada ◽  
Paula Rubio ◽  
Maite Bovaira ◽  
Carles Garcia-Vitoria ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Infrared Thermography ◽  
Sympathetic Blocks

scholarly journals Correlation between skin temperature in the lower limbs and biochemical marker, performance data, and clinical recovery scales

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248653
Author(s):  
Gabriela de Carvalho ◽  
Carlos Eduardo Girasol ◽  
Luiz Guilherme Cruz Gonçalves ◽  
Elaine Caldeira Oliveira Guirro ◽  
Rinaldo Roberto de Jesus Guirro
Keyword(s):  
Skin Temperature ◽  
Infrared Thermography ◽  
Biochemical Marker ◽  
Pearson Correlation ◽  
Performance Data ◽  
Lower Limbs ◽  
Clinical Recovery ◽  
Professional Soccer ◽  
Thermographic Image ◽  
And Performance

The aim of this study was to evaluate the correlation between tools commonly used in the detection of physiological changes, such as clinical complaints, a biochemical marker of muscle injury, and performance data during official matches, with infrared thermography, which has been commonly used in the possible tracking of musculoskeletal injuries in athletes. Twenty-two athletes from a professional soccer club (age 27.7 ± 3.93 years; BMI 24.35 ± 1.80 kg/cm2) were followed during the season of a national championship, totaling 19 matches with an interval of 7 days between matches. At each match, the athletes used a Global Positioning System (GPS) device to collect performance data. Forty-eight hours after each match, every athlete’s perception of recovery, fatigue, and pain was documented. Blood was collected for creatine kinase (CK) analysis, and infrared thermography was applied. Only athletes who presented pain above 4 in either limb were included for thermographic analysis. Each thermographic image was divided into 14 regions of interest. For statistical analysis, we included only the images that showed differences ≥ 1° C. Data normality was verified by the Kolmogorov-Smirnov test with Dallal-Wilkinson-Lilliefors correction. We used the Pearson correlation coefficient to verify the correlation between infrared thermography and the biochemical marker, performance data, and clinical recovery scales. No correlation was observed between mean skin temperature and blood CK levels, pain level, perception of recovery, and fatigue perception (r <0.2, p>0.05). Thus, infrared thermography did not correlate with CK level, pain, fatigue perception, or recovery, nor with performance variables within the field.

Measuring Facial Skin Temperature Changes Caused by Mental Work-Load with Infrared Thermography

2016 ◽  
Vol 136 (11) ◽  
pp. 1581-1585 ◽  
Author(s):  
Tota Mizuno ◽  
Takeru Sakai ◽  
Shunsuke Kawazura ◽  
Hirotoshi Asano ◽  
Kota Akehi ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Infrared Thermography ◽  
Work Load ◽  
Facial Skin ◽  
Mental Work ◽  
Temperature Changes ◽  
Mental Work Load

Real-time Hevea Leaves Diseases Identification using Sobel Edge Algorithm on FPGA: A Preliminary Study

2018 ◽  
Author(s):  
Norfarahin Mohd Yusoff ◽  
Ili Shairah Abdul Halim ◽  
Noor Ezan Abdullah ◽  
A'zraa Afhzan Ab. Rahim
Keyword(s):  
Real Time ◽  
Preliminary Study

Diagnosis of neuroschistosomiasis by antibody specificity index and semi-quantitative real-time PCR from cerebrospinal fluid and serum

2014 ◽  
Vol 63 (2) ◽  
pp. 309-312 ◽  
Author(s):  
Georg Härter ◽  
Hagen Frickmann ◽  
Sebastian Zenk ◽  
Dominic Wichmann ◽  
Bettina Ammann ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Real Time ◽  
Real Time Pcr ◽  
Clinical Symptoms ◽  
Diagnostic Procedures ◽  
Lower Limbs ◽  
Antibody Specificity ◽  
Quantitative Real Time Pcr ◽  
Specific Antibodies ◽  
Routine Diagnosis

We describe the case of a 16-year-old German male expatriate from Ghana who presented with obstipation, dysuria, dysaesthesia of the gluteal region and the lower limbs, bilateral plantar hypaesthesia and paraesthesia without pareses. A serum–cerebrospinal fluid (CSF) Schistosoma spp. specific antibody specificity index of 3.1 was considered highly suggestive of intrathecal synthesis of anti-Schistosoma spp. specific antibodies, although standardization of this procedure has not previously been described. Diagnosis was confirmed by detection of Schistosoma DNA in CSF by semi-quantitative real-time PCR at 100-fold concentration compared with serum. Accordingly the two diagnostic procedures, which have not previously been applied for routine diagnosis, appear to be useful for the diagnosis of neuroschistosomiasis. Clinical symptoms resolved following anthelmintic and anti-inflammatory therapy.

scholarly journals The Use of Infrared Thermography as a Novel Approach for Real-Time Validation of PCR Thermocyclers

2009 ◽  
Vol 3 (2) ◽  
pp. 116-119 ◽  
Author(s):  
Hugo Ahlm Grønlund ◽  
Charlotta Löfström ◽  
Jens Bue Helleskov ◽  
Jeffrey Hoorfar
Keyword(s):  
Real Time ◽  
Infrared Thermography ◽  
Novel Approach
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