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The aim of this work was to explore the potential of infrared thermal imaging as an aiding tool for the diagnosis of skin cancer lesions, using artificial intelligence methods. Thermal parameters of skin tumours were retrieved from thermograms and used as input features for two machine learning based strategies: ensemble learning and deep learning. The deep learning strategy outperformed the ensemble learning one, showing good predictive performance for the differentiation of melanoma and nevi (Precision = 0.9665, Recall = 0.9411, f1-score = 0.9536, ROC(AUC) = 0.9185) and melanoma and non-melanoma skin cancer (Precision = 0.9259, Recall = 0.8852, f1-score = 0.9051, ROC(AUC) = 0.901). IRT imaging combined with deep learning techniques is promising for simplifying and accelerating the diagnosis of skin cancer. Despite ongoing awareness campaigns for skin cancer’ risk factors, its incidence rate has continuously been growing worldwide, becoming a major public health issue. The standard first detection method – dermoscopy –, is largely experience-dependent and mostly used to assess melanocytic lesions. As infrared thermal imaging is an innocuous imaging technique that maps skin surface temperature, which may be associated to pathological states, e.g., tumorous lesions, it could be a potential aiding tool for all skin cancer conditions. The application of artificial intelligence methods to process the collected temperature data can save time and assist health care professionals with low experience levels in the diagnosis task. To the best of our knowledge, this is the first study where a data set of skin cancer thermograms is expanded and used for skin lesion differentiation with a deep learning approach.
Carolina Magalhaes; João Manuel R.S. Tavares; Joaquim Mendes; Ricardo Vardasca. Comparison of machine learning strategies for infrared thermography of skin cancer. Biomedical Signal Processing and Control 2021, 69, 102872 .
AMA StyleCarolina Magalhaes, João Manuel R.S. Tavares, Joaquim Mendes, Ricardo Vardasca. Comparison of machine learning strategies for infrared thermography of skin cancer. Biomedical Signal Processing and Control. 2021; 69 ():102872.
Chicago/Turabian StyleCarolina Magalhaes; João Manuel R.S. Tavares; Joaquim Mendes; Ricardo Vardasca. 2021. "Comparison of machine learning strategies for infrared thermography of skin cancer." Biomedical Signal Processing and Control 69, no. : 102872.
This research reviews 18 scientific articles concerning the application of infrared thermography (IRT) in the mensuration of diagnostic studies of carpal tunnel syndrome (CTS). In addition, the proposed future challenges in this research area are identified. A review of articles is performed in databases such as PubMed, Scopus, EBSCO, ELSEVIER, Springer, and Oxford Academic using the keywords: carpal tunnel syndrome and (thermography OR infrared image OR thermal image). Its contents, journals publishing the topic, and the year of publication are reviewed, and graphs and cross tables are constructed. Using databases such as PubMed, Scopus, EBSCO, ELSEVIER, Springer, and Oxford Academic, 937 articles are identified, 37 of which were duplicates. The titles and abstracts of the remaining articles were reviewed, and 855 articles were deleted due to exclusion criteria. Eighteen articles were found written in foreign language, five were removed for not covering the topic (three reviews and two on liquid crystal thermography), and four were not available online. Finally, eighteen articles were selected for the full text review, from which 13 articles meet the CTS diagnostic classification and 5 consider the CTS studies. IRT is a reliable method in the diagnosis of CTS, mainly in the first stage. To improve diagnostic accuracy, it is recommended nerve conduction studies.
Melissa Airem Cázares-Manríquez; Claudia Camargo-Wilson; Ricardo Vardasca; Jorge Luis García-Alcaraz; Jesús Everardo Olguín-Tiznado; Juan Andrés López-Barreras; Blanca Rosa García-Rivera. A Review on Infrared Thermal Imaging as a Tool in Carpal Tunnel Syndrome. New Perspectives on Applied Industrial Ergonomics 2021, 31 -53.
AMA StyleMelissa Airem Cázares-Manríquez, Claudia Camargo-Wilson, Ricardo Vardasca, Jorge Luis García-Alcaraz, Jesús Everardo Olguín-Tiznado, Juan Andrés López-Barreras, Blanca Rosa García-Rivera. A Review on Infrared Thermal Imaging as a Tool in Carpal Tunnel Syndrome. New Perspectives on Applied Industrial Ergonomics. 2021; ():31-53.
Chicago/Turabian StyleMelissa Airem Cázares-Manríquez; Claudia Camargo-Wilson; Ricardo Vardasca; Jorge Luis García-Alcaraz; Jesús Everardo Olguín-Tiznado; Juan Andrés López-Barreras; Blanca Rosa García-Rivera. 2021. "A Review on Infrared Thermal Imaging as a Tool in Carpal Tunnel Syndrome." New Perspectives on Applied Industrial Ergonomics , no. : 31-53.
The monitoring of infrared thermal images is reported to analyze changes in skin temperature in the hand fingers when repetitive work is performed to know which finger has a greater risk of injury, besides, the recovery time is analyzed regarding the initial temperature and its relationship with age, sex, weight, height if practice sports, and Body Mass Index (BMI) per individual. For the above, an experimental test was carried out for 10 minutes on a repetitive operation that takes place in the telecommunications industry and 39 subjects participated in which an infrared thermal image of the dorsal and palmar part of both hands was taken in periods of 5 minutes after the 10-minute test has elapsed. The results show that none of the participants recovered their initial temperature after 10 minutes of the experimental test. In addition, it was found that there is a relationship between skin temperature and sex, and that age influences the recovery of temperature. On the other hand, the thumb, index, and middle fingers have a higher risk of injury in the analyzed task. It is concluded that performing repetitive work with all the fingers of the hand does not show that all they have the same risk of injury, besides that, not all the variables studied affect the recovery of temperature and its behavior.
Alejandra García Becerra; Jesús Everardo Olguín-Tiznado; Jorge Luis García Alcaraz; Claudia Camargo Wilson; Blanca Rosa García-Rivera; Ricardo Vardasca; Juan Andres López-Barreras. Infrared thermal imaging monitoring on hands when performing repetitive tasks: An experimental study. PLOS ONE 2021, 16, e0250733 .
AMA StyleAlejandra García Becerra, Jesús Everardo Olguín-Tiznado, Jorge Luis García Alcaraz, Claudia Camargo Wilson, Blanca Rosa García-Rivera, Ricardo Vardasca, Juan Andres López-Barreras. Infrared thermal imaging monitoring on hands when performing repetitive tasks: An experimental study. PLOS ONE. 2021; 16 (5):e0250733.
Chicago/Turabian StyleAlejandra García Becerra; Jesús Everardo Olguín-Tiznado; Jorge Luis García Alcaraz; Claudia Camargo Wilson; Blanca Rosa García-Rivera; Ricardo Vardasca; Juan Andres López-Barreras. 2021. "Infrared thermal imaging monitoring on hands when performing repetitive tasks: An experimental study." PLOS ONE 16, no. 5: e0250733.
During the transition between warm-up and competition there is a change in core, muscle and (eventually) skin temperature that may affect swimming performance. We have aimed to assess skin temperature evolution during transition phases of different durations before a typical front crawl effort and to investigate its relationship with performance. Following a standardized warm-up, nine adolescent male swimmers performed three maximal randomized 100 m maximum front crawl trials after 10, 20 and 45 min transition phases. Skin temperature, performance (time, stroke frequency, length and index, and propelling efficiency), heart rate, lactate and perceived effort were assessed. Data showed a skin temperature log increase over time (R2 > 0.96, p < 0.01) without differences from the 15 min with the following instants. Performance and psychophysiological variables were similar between transition phases. However, skin temperature at the end of the transition periods, i.e., just before the 100 m trials, was lower in the 10 min than the 20 and 45 min transitions (32.0 ± 0.6 vs 33.0 ± 0.4 and 33.5 ± 0.5 °C, respectively). The main finding was that no relevant relationships were observed between pre-test skin temperature and performance times (|r| < 0.6, p > 0.05) for the studied transition phases. We have concluded that transitions longer than 10 min will not present thermal changes and that, within the physiologic limits studied, pre-exercise skin temperature does not influence swimming performance.
Irene Jimenez-Perez; Marina Gil-Calvo; Ricardo Vardasca; Ricardo J. Fernandes; João Paulo Vilas-Boas. Pre-exercise skin temperature evolution is not related with 100 m front crawl performance. Journal of Thermal Biology 2021, 98, 102926 .
AMA StyleIrene Jimenez-Perez, Marina Gil-Calvo, Ricardo Vardasca, Ricardo J. Fernandes, João Paulo Vilas-Boas. Pre-exercise skin temperature evolution is not related with 100 m front crawl performance. Journal of Thermal Biology. 2021; 98 ():102926.
Chicago/Turabian StyleIrene Jimenez-Perez; Marina Gil-Calvo; Ricardo Vardasca; Ricardo J. Fernandes; João Paulo Vilas-Boas. 2021. "Pre-exercise skin temperature evolution is not related with 100 m front crawl performance." Journal of Thermal Biology 98, no. : 102926.
Temperature gradient changes on the surface of the skin or in the middle of the body are signs of a disease. The aim of this study is to develop quantitative models for the prediction of cumulative trauma disorders (CTDs) arising from highly repetitive activities, considering risk factors, such as age, gender, body mass index (BMI), blood pressure (BP), respiratory rate (RR), and heart rate, to prevent injuries in manufacturing factory operators. This research involved 19 individuals from the area of sanding and 14 individuals from the area of tolex in manufacturing factories who had their vital signs and somatometry taken, as well as thermal images of their hands in the dorsal and palmar areas; an evaluation by the OCRA method was also applied. Factors such as BP and heart rate were determined to significantly influence the injuries, but no strong association with BMI was found. Quadratic regression models were developed, the estimates of which were adequately adjusted to the variable (R2 and R2 adjusted > 0.70). When integrating the factors of the OCRA method to the generated models, a better fit was obtained (R2 and adjusted R2 > 0.80). In conclusion, the participants who present levels out of the normal range in at least one of the factors have high probabilities of developing injuries in their wrists.
Melissa Cázares-Manríquez; Claudia Camargo-Wilson; Ricardo Vardasca; Jorge García-Alcaraz; Jesús Olguín-Tiznado; Juan López-Barreras; Blanca García-Rivera. Quantitative Models for Prediction of Cumulative Trauma Disorders Applied to the Maquiladora Industry. International Journal of Environmental Research and Public Health 2021, 18, 3830 .
AMA StyleMelissa Cázares-Manríquez, Claudia Camargo-Wilson, Ricardo Vardasca, Jorge García-Alcaraz, Jesús Olguín-Tiznado, Juan López-Barreras, Blanca García-Rivera. Quantitative Models for Prediction of Cumulative Trauma Disorders Applied to the Maquiladora Industry. International Journal of Environmental Research and Public Health. 2021; 18 (7):3830.
Chicago/Turabian StyleMelissa Cázares-Manríquez; Claudia Camargo-Wilson; Ricardo Vardasca; Jorge García-Alcaraz; Jesús Olguín-Tiznado; Juan López-Barreras; Blanca García-Rivera. 2021. "Quantitative Models for Prediction of Cumulative Trauma Disorders Applied to the Maquiladora Industry." International Journal of Environmental Research and Public Health 18, no. 7: 3830.
Due to the COVID-19 pandemic, higher education institutions with a face-to-face model have found themselves in the contingency of migrating to online learning. This study explores the perspective of all the lecturers at a Portuguese private higher education institution who were invited to participate, regardless of their research area, in this questionnaire. It aims to propose and test a conceptual model that combines attitudes, preferred activities, and technological experience with the sentiment about the impact of this experience on students’ learning process, on their teaching activity, and on the strategy of higher education institutions. An online questionnaire was conducted to 65 lecturers engaging in emergency online lecturing. The obtained results showed that lecturers reveal a positive attitude towards online lecturing, tend to prefer activities in which they feel most comfortable in face-to-face lecturing, and consider having technological experience useful for online activities. Lecturers have a positive sentiment about the impact of online learning on students’ learning, their faculty career, and the strategy of higher education institutions. The proposed conceptual model test shows that the model has well-fitting conditions. The results confirm the hypotheses formulated: namely, the predictive effect of attitude, preferred activities, and technological experience on sentiment. Faculty engagement in emergency online lecturing shows that the members are available to participate in the changing process, and the proposed conceptual model can be used to assess this readiness.
Domingos Martinho; Pedro Sobreiro; Ricardo Vardasca. Teaching Sentiment in Emergency Online Learning—A Conceptual Model. Education Sciences 2021, 11, 53 .
AMA StyleDomingos Martinho, Pedro Sobreiro, Ricardo Vardasca. Teaching Sentiment in Emergency Online Learning—A Conceptual Model. Education Sciences. 2021; 11 (2):53.
Chicago/Turabian StyleDomingos Martinho; Pedro Sobreiro; Ricardo Vardasca. 2021. "Teaching Sentiment in Emergency Online Learning—A Conceptual Model." Education Sciences 11, no. 2: 53.
Atypical body temperature values can be an indication of abnormal physiological processes associated with several health conditions. Infrared thermal (IRT) imaging is an innocuous imaging modality capable of capturing the natural thermal radiation emitted by the skin surface, which is connected to physiology-related pathological states. The implementation of artificial intelligence (AI) methods for interpretation of thermal data can be an interesting solution to supply a second opinion to physicians in a diagnostic/therapeutic assessment scenario. The aim of this work was to perform a systematic review and meta-analysis concerning different biomedical thermal applications in conjunction with machine learning strategies. The bibliographic search yielded 68 records for a qualitative synthesis and 34 for quantitative analysis. The results show potential for the implementation of IRT imaging with AI, but more work is needed to retrieve significant features and improve classification metrics.
Carolina Magalhaes; Joaquim Mendes; Ricardo Vardasca. Meta-Analysis and Systematic Review of the Application of Machine Learning Classifiers in Biomedical Applications of Infrared Thermography. Applied Sciences 2021, 11, 842 .
AMA StyleCarolina Magalhaes, Joaquim Mendes, Ricardo Vardasca. Meta-Analysis and Systematic Review of the Application of Machine Learning Classifiers in Biomedical Applications of Infrared Thermography. Applied Sciences. 2021; 11 (2):842.
Chicago/Turabian StyleCarolina Magalhaes; Joaquim Mendes; Ricardo Vardasca. 2021. "Meta-Analysis and Systematic Review of the Application of Machine Learning Classifiers in Biomedical Applications of Infrared Thermography." Applied Sciences 11, no. 2: 842.
In order to verify whether there is a considerable increase in body skin temperature during different swimming techniques (crawl and backstroke) and identifying the most affected regions. The athlete's thermal symmetry was also analyzed, as well as its modification after the swimming, according to the performed technique. The accuracy of thermography as a method to identify and distinguish these different styles was also evaluated. Ten male swimmers were recruited and two different swimming techniques were assessed, crawl and backstroke. After a 10 minute acclimatization period in the pool, the swimmers were quickly dried with microfiber towels. The thermograms were taken before and after the swimming task, which consisted in a 7x200m protocol in crawl or backstroke. Infrared thermography revealed an increase of temperature after exercise and no significant differences were found between both techniques. Thermal symmetry was not affected by exercise.
Ana Sofia Domingues; Filipa Barbosa; Adérito Seixas; Márcio Borgonovo-Santos; Eduardo M. Pereira; Ricardo Vardasca; Joaquim Gabriel; Ricardo J. Fernandes; J. Paulo Vilas-Boas. Infrared Thermography in Swimming. Research Anthology on Business Strategies, Health Factors, and Ethical Implications in Sports and eSports 2021, 795 -815.
AMA StyleAna Sofia Domingues, Filipa Barbosa, Adérito Seixas, Márcio Borgonovo-Santos, Eduardo M. Pereira, Ricardo Vardasca, Joaquim Gabriel, Ricardo J. Fernandes, J. Paulo Vilas-Boas. Infrared Thermography in Swimming. Research Anthology on Business Strategies, Health Factors, and Ethical Implications in Sports and eSports. 2021; ():795-815.
Chicago/Turabian StyleAna Sofia Domingues; Filipa Barbosa; Adérito Seixas; Márcio Borgonovo-Santos; Eduardo M. Pereira; Ricardo Vardasca; Joaquim Gabriel; Ricardo J. Fernandes; J. Paulo Vilas-Boas. 2021. "Infrared Thermography in Swimming." Research Anthology on Business Strategies, Health Factors, and Ethical Implications in Sports and eSports , no. : 795-815.
Carpal tunnel syndrome (CTS) is one of the most common compressive, canalicular neuropathies of the upper extremities, causing hand pain and impaired function. CTS results from compression or injury of the median nerve at the wrist within the confines of the carpal tunnel. Parameters such as age, sex, and body mass index (BMI) could be risk factors for CTS. This research work aimed to review the existing literature regarding the relationship between CTS and possible risk factors, such as age, sex, BMI, dominant hand, abdominal circumference, respiratory rate, blood pressure, and cardiac rate to determine which ones are the most influential, and therefore, take them into account in subsequent applied research in the manufacturing industry. We performed a literature search in the PubMed, EBSCO, and ScienceDirect databases using the following keywords: carpal tunnel syndrome AND (age OR sex OR BMI OR handedness OR abdominal circumference OR respiratory rate OR blood pressure OR cardiac rate). We chose 72 articles by analyzing the literature found based on selection criteria. We concluded that CTS is associated with age, female sex, and high BMI. Trends and future challenges have been proposed to delve into the relationship between risk factors and CTS, such as correlation studies on pain reduction, analysis of weight changes to predict the severity of this pathology, and its influence on clinical treatments.
Melissa Airem Cazares-Manríquez; Claudia Camargo Wilson; Ricardo Vardasca; Jorge Luis García-Alcaraz; Jesús Everardo Olguín-Tiznado; Juan Andrés López-Barreras; Blanca Rosa García-Rivera. A Review of Carpal Tunnel Syndrome and Its Association with Age, Body Mass Index, Cardiovascular Risk Factors, Hand Dominance, and Sex. Applied Sciences 2020, 10, 3488 .
AMA StyleMelissa Airem Cazares-Manríquez, Claudia Camargo Wilson, Ricardo Vardasca, Jorge Luis García-Alcaraz, Jesús Everardo Olguín-Tiznado, Juan Andrés López-Barreras, Blanca Rosa García-Rivera. A Review of Carpal Tunnel Syndrome and Its Association with Age, Body Mass Index, Cardiovascular Risk Factors, Hand Dominance, and Sex. Applied Sciences. 2020; 10 (10):3488.
Chicago/Turabian StyleMelissa Airem Cazares-Manríquez; Claudia Camargo Wilson; Ricardo Vardasca; Jorge Luis García-Alcaraz; Jesús Everardo Olguín-Tiznado; Juan Andrés López-Barreras; Blanca Rosa García-Rivera. 2020. "A Review of Carpal Tunnel Syndrome and Its Association with Age, Body Mass Index, Cardiovascular Risk Factors, Hand Dominance, and Sex." Applied Sciences 10, no. 10: 3488.
Musculoskeletal disorders can be common in wind and string instrumentalists. The musical gesture technique associated to musical performance can promote an asymmetrical isometric contraction with the hyperactivity of specific muscular groups and the overload of articular surfaces which can cause discomfort or pain. The aim of this investigation was to assess specific anatomical regions of interest within the cranio-cervico-mandibular complex in order to determine and evaluate the presence of muscular hyperactivity associated to musical performance. An infrared imaging camera, FLIR®, was used to record the regions of interest in wind (n = 48) and string instrumentalists (n = 29). Bilateral temperature differences were considered as thermal asymmetries with a conventional threshold of 0.3 ºC to distinguish pathological from healthy states. The regions of interest (ROI) were the anterior triangle of the neck, the sternocleidomastoid and trapezius muscles regarding the postural and stabilizing muscles of the head and neck. On the orofacial region, the anatomical sites were the anterior temporal muscle, the masseter muscle and the temporomandibular joint. A Pearson chi-square test was performed to compare the assessed areas. Between 30–37% of all participants showed ROI in an asymmetric pattern. The most affected sites were the temporal muscle and the TMJ for both groups. The anterior triangle of the neck showed statistical differences (p = 0.044) between string and wind instrumentalists, while the temporal (p = 0.034) and trapezius muscle (p = 0.028) when comparing large and small mouthpieces of brass instruments. Although female participants showed a higher prevalence of asymmetrical patterns regarding the ROI, no statistical differences were found between genders. Infrared thermography exhibited significant differences between wind and string instruments within the CCMC. Regarding the issue of occupational health in performing arts, it is an advantage being able to quantify asymmetrical patterns sites of the CCMC to understand the underlying physiological responses to repetitive movements, overloading and muscular hyperactivity that occur during musical performance.
Miguel Pais Clemente; Joaquim Mendes; Ricardo Vardasca; André Moreira; Catarina Aguiar Branco; Afonso Pinhão Ferreira; José Manuel Amarante. Infrared thermography of the crânio-cervico-mandibular complex in wind and string instrumentalists. International Archives of Occupational and Environmental Health 2020, 93, 645 -658.
AMA StyleMiguel Pais Clemente, Joaquim Mendes, Ricardo Vardasca, André Moreira, Catarina Aguiar Branco, Afonso Pinhão Ferreira, José Manuel Amarante. Infrared thermography of the crânio-cervico-mandibular complex in wind and string instrumentalists. International Archives of Occupational and Environmental Health. 2020; 93 (5):645-658.
Chicago/Turabian StyleMiguel Pais Clemente; Joaquim Mendes; Ricardo Vardasca; André Moreira; Catarina Aguiar Branco; Afonso Pinhão Ferreira; José Manuel Amarante. 2020. "Infrared thermography of the crânio-cervico-mandibular complex in wind and string instrumentalists." International Archives of Occupational and Environmental Health 93, no. 5: 645-658.
The authors intend, by presenting a case study, emphasize the neuromodulation process of orofacial pain induced by the stimulation of the sensory and motor stimulation of the trigeminal nerve, which can play an important role on pain modulation. A 25 year-old woman presenting orofacial pain was referred to the stomatology service at the Centro Hospitalar do Porto. After collecting the patient's anamnesis, the thermographic camera FLIR i7 was used to record the thermal status of the orofacial structures, before the adhesive dentistry sensory stimulus protocol, after 45 minutes, and after one week. This study suggests the relation of adhesive dentistry sensory stimulus technique in the neuromodulation of orofacial pain and its association with the temporomandibular disorders . As the tongue senses the stimulus of the resin composite placed on the palatal surface of the 1st premolar, 2nd premolar and 1st molar of the maxilla, this can promote and induce an effect regarding a peripheral nerve neuromodulation resulting in a blockage of the nociceptive trigeminal pathway from temporomandibular disorders. Orofacial pain is a common complaint among the patients that come to a dentistry appointment, which may have different diagnosis and treatments. A positive effect on the patient's symptomatology was confirmed clinically on subsequent dental appointments and monitored by infrared thermography.
Miguel Pais. Clemente; Asdrúbal Pinto; Fernando Milheiro; Teresa F. Costa; Andre Moreira; Ricardo Vardasca; Pedro A. Pereira; Joaquim Mendes; M. Dulce Madeira; José Manuel. Amarante. Adhesive dentistry sensory stimulus technique as a neuromechanism for the treatment of orofacial pain associated to temporomandibular disorders: Case study. Journal of Oral Biology and Craniofacial Research 2020, 10, 6 -12.
AMA StyleMiguel Pais. Clemente, Asdrúbal Pinto, Fernando Milheiro, Teresa F. Costa, Andre Moreira, Ricardo Vardasca, Pedro A. Pereira, Joaquim Mendes, M. Dulce Madeira, José Manuel. Amarante. Adhesive dentistry sensory stimulus technique as a neuromechanism for the treatment of orofacial pain associated to temporomandibular disorders: Case study. Journal of Oral Biology and Craniofacial Research. 2020; 10 (2):6-12.
Chicago/Turabian StyleMiguel Pais. Clemente; Asdrúbal Pinto; Fernando Milheiro; Teresa F. Costa; Andre Moreira; Ricardo Vardasca; Pedro A. Pereira; Joaquim Mendes; M. Dulce Madeira; José Manuel. Amarante. 2020. "Adhesive dentistry sensory stimulus technique as a neuromechanism for the treatment of orofacial pain associated to temporomandibular disorders: Case study." Journal of Oral Biology and Craniofacial Research 10, no. 2: 6-12.
Adérito Seixas; Iuri Pimenta; Kurt Ammer; Rui Carvalho; João Paulo Vilas-Boas; Joaquim Mendes; Ricardo Vardasca. Reliability of infrared image analysis based on anatomical landmarks. Infrared Physics & Technology 2019, 104, 103149 .
AMA StyleAdérito Seixas, Iuri Pimenta, Kurt Ammer, Rui Carvalho, João Paulo Vilas-Boas, Joaquim Mendes, Ricardo Vardasca. Reliability of infrared image analysis based on anatomical landmarks. Infrared Physics & Technology. 2019; 104 ():103149.
Chicago/Turabian StyleAdérito Seixas; Iuri Pimenta; Kurt Ammer; Rui Carvalho; João Paulo Vilas-Boas; Joaquim Mendes; Ricardo Vardasca. 2019. "Reliability of infrared image analysis based on anatomical landmarks." Infrared Physics & Technology 104, no. : 103149.
Ana Colim; Pedro Arezes; Paulo Flores; Ricardo Vardasca; Ana Cristina Braga. Thermographic differences due to dynamic work tasks on individuals with different obesity levels: a preliminary study. Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization 2019, 8, 323 -333.
AMA StyleAna Colim, Pedro Arezes, Paulo Flores, Ricardo Vardasca, Ana Cristina Braga. Thermographic differences due to dynamic work tasks on individuals with different obesity levels: a preliminary study. Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization. 2019; 8 (3):323-333.
Chicago/Turabian StyleAna Colim; Pedro Arezes; Paulo Flores; Ricardo Vardasca; Ana Cristina Braga. 2019. "Thermographic differences due to dynamic work tasks on individuals with different obesity levels: a preliminary study." Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization 8, no. 3: 323-333.
Infrared thermography is a functional examination that can document physiological changes such as abnormal cutaneous vasomotor activity in inflammatory and neurogenic pictures related to nociceptive and neuropathic pain by mapping the thermal distribution on the surface of the skin. Objective: The aim of this study was to verify if there is a facial thermal difference between the symptomatic and asymptomatic group for myogenic TMD according to the Research Diagnostic Criteria for Temporomandibular Disorder (RDC/TMD) in a European population sample. Material and methods: Sixty-one subjects between 20 and 40 years (26.2 ± 7.6 years) of both sexes were divided into two groups. The 28 facial thermo-anatomic points were selected and the values of minimum (Tmin), mean (Tmed) and maximum (Tmax) temperatures, average of hemiface temperatures of whole sample, temperature difference (ΔT(°C)) between groups and from these data an algorithm was formulated to separate the groups with greater accuracy. Results: There was an average difference of 0.3 °C of all points when comparing the two groups. The symptomatic group had lower maximum temperature for frontal and lateral views when compared to the asymptomatic group (p
Denise Sabbagh Haddad; Beatriz Christine Oliveira; Marcos Leal Brioschi; Edgard Michel Crosato; Ricardo Vardasca; Joaquim Gabriel Mendes; João Carlos Gonçalves Ferreira Pinho; Miguel Pais Clemente; Emiko Saito Arita. Is it possible myogenic temporomandibular dysfunctions change the facial thermal imaging? Clinical and Laboratorial Research in Dentistry 2019, 1 .
AMA StyleDenise Sabbagh Haddad, Beatriz Christine Oliveira, Marcos Leal Brioschi, Edgard Michel Crosato, Ricardo Vardasca, Joaquim Gabriel Mendes, João Carlos Gonçalves Ferreira Pinho, Miguel Pais Clemente, Emiko Saito Arita. Is it possible myogenic temporomandibular dysfunctions change the facial thermal imaging? Clinical and Laboratorial Research in Dentistry. 2019; ():1.
Chicago/Turabian StyleDenise Sabbagh Haddad; Beatriz Christine Oliveira; Marcos Leal Brioschi; Edgard Michel Crosato; Ricardo Vardasca; Joaquim Gabriel Mendes; João Carlos Gonçalves Ferreira Pinho; Miguel Pais Clemente; Emiko Saito Arita. 2019. "Is it possible myogenic temporomandibular dysfunctions change the facial thermal imaging?" Clinical and Laboratorial Research in Dentistry , no. : 1.
The criteria of performing a correct embouchure can differ according to particular craniofacial features. Different teaching techniques can also lead to specific patterns of a musician embouchure, where playing in a relaxed position is one of the major indications. In order to understand if there is a “perfect embouchure”, several techniques were used on the analysis of the embouchure of three different wind instrumentalists. Force sensing resistors were applied to the mouthpiece of a clarinet, infrared thermography was performed to a brass player, while a bassoon player underwent two lateral cephalograms. The examinations techniques were chosen to take advantage of the possible information that could be taken from each musician, on addition to the evidence of the intra-oral exam. The force analysis showed that the clarinetist had an asymmetrical force distribution among the two central incisors. The infrared thermography showed that the tuba player had thermal asymmetry at the region correspondent to the masseters muscles possibly related to the teeth position. The lateral cephalograms showed a 10° posterior rotation of the mandible during the embouchure of the bassoon player. Therefore, understanding the anatomical limitations of the orofacial region, which may lead to an asymmetrical embouchure, is fundamental to analyze and treat a wind instrumentalist within a dental appointment.
Miguel Pais Clemente; José Manuel Amarante; André Moreira; Afonso Pinhão Ferreira; Ricardo Vardasca; Joaquim Mendes. The Functional Interdependence of Wind Instrumentalists’ Embouchure and Their Craniofacial Features. International Journal of Online and Biomedical Engineering (iJOE) 2019, 15, 17 -33.
AMA StyleMiguel Pais Clemente, José Manuel Amarante, André Moreira, Afonso Pinhão Ferreira, Ricardo Vardasca, Joaquim Mendes. The Functional Interdependence of Wind Instrumentalists’ Embouchure and Their Craniofacial Features. International Journal of Online and Biomedical Engineering (iJOE). 2019; 15 (13):17-33.
Chicago/Turabian StyleMiguel Pais Clemente; José Manuel Amarante; André Moreira; Afonso Pinhão Ferreira; Ricardo Vardasca; Joaquim Mendes. 2019. "The Functional Interdependence of Wind Instrumentalists’ Embouchure and Their Craniofacial Features." International Journal of Online and Biomedical Engineering (iJOE) 15, no. 13: 17-33.
The impact of a rider's and saddle's mass on saddle thermal pattern distribution was evaluated using infrared thermography (IRT). Eighteen racehorses were ridden by four riders with their own saddle. Images of the saddle panels were captured at each of six thermographic examinations. On each image, six regions of interest (ROIs) were marked on the saddle panels. The mean temperature for each ROI was extracted. To evaluate the influence of load on saddle fit, 4 indicators were used: ΔTmax (difference between the mean temperature of the warmest and coolest ROI); standard deviation of the mean temperature of the six ROIs; right/left; bridging/rocking and front/back thermal pattern indicator. Incorrect saddle fit was found in 25 measurements (23.1%) with ΔTmax greater than 2°C. The relationships between rider and saddle fit as well as saddle fit and horse were significant (p<0.001). An average ΔTmax in rider A was significantly higher than in other riders (p<0.001). The right/left thermal pattern differed significantly from the optimal value for riders A and B; while the bridging/rocking thermal pattern differed significantly from this value for riders A, C and D (p<0.05). Front saddle thermal pattern was most frequent for rider A (41.5%), whereas back saddle thermal pattern was most frequent for rider C (85.7%). Measurement of the mean temperature in 6 ROIs on saddle panels after training was helpful in assessing the influence of rider and saddle mass on saddle fit. IRT offered a non-invasive, rapid and simple method for assessing load on thermal pattern distribution in race saddles.
Maria Soroko; Daniel Zaborski; Krzysztof Dudek; Kelly Yarnell; Wanda Górniak; Ricardo Vardasca. Evaluation of thermal pattern distributions in racehorse saddles using infrared thermography. PLOS ONE 2019, 14, e0221622 .
AMA StyleMaria Soroko, Daniel Zaborski, Krzysztof Dudek, Kelly Yarnell, Wanda Górniak, Ricardo Vardasca. Evaluation of thermal pattern distributions in racehorse saddles using infrared thermography. PLOS ONE. 2019; 14 (8):e0221622.
Chicago/Turabian StyleMaria Soroko; Daniel Zaborski; Krzysztof Dudek; Kelly Yarnell; Wanda Górniak; Ricardo Vardasca. 2019. "Evaluation of thermal pattern distributions in racehorse saddles using infrared thermography." PLOS ONE 14, no. 8: e0221622.
The role of skin temperature and soft tissue hardness in the development of plantar ulcers is still in debate. However, the relationship between skin temperature and soft tissue hardness has not been explored. This study intends to analyse an eventual association between skin temperature and soft tissue hardness in the foot of diabetic patients Approach: Twenty diabetic patients enrolled for this study. The analysis was done at the foot level, therefore, skin temperature and soft tissue hardness data of the plantar surface of 40 feet were obtained in eight regions of the foot, two in the heel, two in the midfoot, three in the forefoot and one in the hallux. Information regarding glycaemic control (HbA1c levels) was retrieved from the clinical records of the patients. After averaging skin temperature and soft tissue hardness in the calcaneum (medial and lateral), in the midfoot (medial and lateral) and in the metatarsal head (1st, 2nd-3rd and 4th-5th), a negative, moderate and significant association was found between skin temperature and soft tissue hardness in the metatarsal head (rho = -0.553; p < 0.001), a positive, low and significant association was found in the midfoot (rho = 0.333; p = 0.036), but no association was found in the heel. The multiple linear regression models with skin temperature as dependent variable and soft tissue hardness as predictor were statistically significant in the metatarsal heads and midfoot, and explained 28.8% (R 2 = 0.288, F (1,38) = 15.37, p < 0.001) and 11.9% (R 2 = 0.119, F (1,38) = 5.151, p = 0.029) of the variance in skin temperature, respectively. Skin temperature is negatively associated with soft tissue hardness in the metatarsal head region and positively associated with soft tissue hardness in the midfoot. These findings imply that soft tissue hardness should be considered in the assessment of diabetic foot patients and that this variable should be controlled in studies assessing the determinants of foot skin temperature.
Adérito Seixas; Kurt Ammer; Rui Carvalho; J. Paulo Vilas-Boas; Joaquim Gabriel Mendes; Ricardo Vardasca. Relationship between skin temperature and soft tissue hardness in diabetic patients: an exploratory study. Physiological Measurement 2019, 40, 074007 .
AMA StyleAdérito Seixas, Kurt Ammer, Rui Carvalho, J. Paulo Vilas-Boas, Joaquim Gabriel Mendes, Ricardo Vardasca. Relationship between skin temperature and soft tissue hardness in diabetic patients: an exploratory study. Physiological Measurement. 2019; 40 (7):074007.
Chicago/Turabian StyleAdérito Seixas; Kurt Ammer; Rui Carvalho; J. Paulo Vilas-Boas; Joaquim Gabriel Mendes; Ricardo Vardasca. 2019. "Relationship between skin temperature and soft tissue hardness in diabetic patients: an exploratory study." Physiological Measurement 40, no. 7: 074007.
There are several sites in which the human body core temperature can be estimated and used to identify febrile states in a threat of pandemic situations at high populational traffic places (e.g. airports, ports, universities, schools, public buildings). In those locations, a fast method is required for temperature screening of masses. The most common methods are the axillar and tympanic thermometers. However, the measurement of the inner canthi of the eye with infrared thermal imaging has been suggested as a fast mass measurement screening tool. It is aim of this research to identify the bilateral difference of the available body temperature screening methods with potential use for large scale fever screening and verify if such difference is acceptable. A total of 206 young participants (104 females and 102 males) were recruited having their temperatures taken with the different methods bilaterally under neutral environmental conditions, being the obtained results statistically processed. Results established absent reference data for site and method in west European population. The bilateral differences were minor using the inner canthi of the eye monitored with infrared imaging, which was also proved with the Bland-Altmann limits of agreement. Based on the findings of this research, despite all methods being able to estimate body core temperature, it is suggested the use of infrared thermal images of the inner canthi of the eye, due to its fast, reliable and reproducible procedure for massive screening. Further research is required to understand the higher bilateral variability in using the traditional thermometer axilla and tympanic membrane assessments, since these are the methods currently used within a clinical setup. The same procedure must be applied to fever cases to establish a decision threshold per method.
Ricardo Vardasca; Carolina Magalhaes; Diana Marques; Joana Moreira; Rita Almeida Frade; Aderito Seixas; Joaquim Gabriel Mendes; Francis Ring. Bilateral assessment of body core temperature through axillar, tympanic and inner canthi thermometers in a young population. Physiological Measurement 2019, 40, 094001 .
AMA StyleRicardo Vardasca, Carolina Magalhaes, Diana Marques, Joana Moreira, Rita Almeida Frade, Aderito Seixas, Joaquim Gabriel Mendes, Francis Ring. Bilateral assessment of body core temperature through axillar, tympanic and inner canthi thermometers in a young population. Physiological Measurement. 2019; 40 (9):094001.
Chicago/Turabian StyleRicardo Vardasca; Carolina Magalhaes; Diana Marques; Joana Moreira; Rita Almeida Frade; Aderito Seixas; Joaquim Gabriel Mendes; Francis Ring. 2019. "Bilateral assessment of body core temperature through axillar, tympanic and inner canthi thermometers in a young population." Physiological Measurement 40, no. 9: 094001.
Carolina Magalhães; Pedro Contente; Ricardo Vardasca; Paulo Abreu; Joaquim Mendes; Maria Teresa Restivo. Strength and Skin Temperature Assessment: Comparing Active and Geriatric Populations. International Journal of Engineering and Applied Sciences (IJEAS) 2019, 6, 1 .
AMA StyleCarolina Magalhães, Pedro Contente, Ricardo Vardasca, Paulo Abreu, Joaquim Mendes, Maria Teresa Restivo. Strength and Skin Temperature Assessment: Comparing Active and Geriatric Populations. International Journal of Engineering and Applied Sciences (IJEAS). 2019; 6 (5):1.
Chicago/Turabian StyleCarolina Magalhães; Pedro Contente; Ricardo Vardasca; Paulo Abreu; Joaquim Mendes; Maria Teresa Restivo. 2019. "Strength and Skin Temperature Assessment: Comparing Active and Geriatric Populations." International Journal of Engineering and Applied Sciences (IJEAS) 6, no. 5: 1.
Infrared thermal imaging (IRT) has been a target of research for biomedical musculoskeletal applications, due to the possible association of the physiological data that it provides, through skin temperature measurement, with pathological states. The aim of this systematic review is to acquaint the outcomes of the biomedical application of IRT in arm and forearm evaluation and its future perspectives of research. During the literature review, 926 articles were identified using the search engines PubMed and Scopus, and 10 articles were retrieved from other sources. After screening the abstracts and applying the eligibility criteria on those which were fully accessible, 33 articles were included in the review. It can be observed that IRT has the potential to provide physiological information on the arm and forearm, showing potential to serve as an aid in various pathologies and health situations. Future studies and challenges are identified and proposed, facilitating the improvement and acceptance of the application of IRT in the assessment of arm and forearm' health status.
Ricardo Vardasca; Carolina Magalhães; Pedro Silva; Paulo Abreu; Joaquim Mendes; Maria Teresa Restivo. Biomedical musculoskeletal applications of infrared thermal imaging on arm and forearm: A systematic review. Journal of Thermal Biology 2019, 82, 164 -177.
AMA StyleRicardo Vardasca, Carolina Magalhães, Pedro Silva, Paulo Abreu, Joaquim Mendes, Maria Teresa Restivo. Biomedical musculoskeletal applications of infrared thermal imaging on arm and forearm: A systematic review. Journal of Thermal Biology. 2019; 82 ():164-177.
Chicago/Turabian StyleRicardo Vardasca; Carolina Magalhães; Pedro Silva; Paulo Abreu; Joaquim Mendes; Maria Teresa Restivo. 2019. "Biomedical musculoskeletal applications of infrared thermal imaging on arm and forearm: A systematic review." Journal of Thermal Biology 82, no. : 164-177.