• MeSH
• biofyzika metody   MeSH
• chronická kritická ischemie končetin MeSH
• dolní končetina diagnostické zobrazování   patofyziologie   MeSH
• ireverzibilní elektroporace (terapie) MeSH
• lidé MeSH
• radiofrekvenční ablace MeSH
• tělesná teplota MeSH
• termografie * metody   MeSH
• transplantace cév MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• práce podpořená grantem MeSH

• Publikační typ
• abstrakt z konference MeSH

Infrared thermography (IRT) is a non-invasive method for surface temperature measuring. The use of the contactless IRT method is comfortable for the patient, fast and hygienic. However, this method does not provide information about the core body temperature because the temperature is measured indirectly from the surface of the human body. There are several places on a human body from which surface temperature is commonly measured; the methods of measurement and application of the device is inconsistent. The aim of this article is to show the difference between the temperature measured on the forehead and on the inner corner of the eye in healthy persons, with reference to the recommendations of ISO standard. This is mainly due to the fact that compliance with the ISO standard is not always met, as shown by the personal experience of the authors. The body surface temperature was measured by use infrared camera WIC 640 under control of calibrated model of a black body. The data from 59 different volunteer subjects show statistically significant difference in measured temperature from both selected positions. The obtained median temperature values were 35.04 °C from forehead area and 35.85 °C from canthus of eyes. The observed difference was more than three-quarters of a degree Celsius for the median value. The maximum observed temperature difference within the observed group was almost 1.94 °C. The present study defines surface temperature from canthus of eye and undoubtedly shows how important it is to comply with the standards and recommendations of professional thermology societies.

• MeSH
• dolní končetina * krevní zásobení   MeSH
• krevní oběh MeSH
• lidé MeSH
• termografie * metody   MeSH
• Check Tag
• lidé MeSH

• Klíčová slova
• emisivita, povrchová teplota, termokamera, termografické měření,
• MeSH
• lidé MeSH
• prediktivní hodnota testů * MeSH
• tělesná teplota * MeSH
• teplota kůže MeSH
• termodynamika * MeSH
• termografie * metody   přístrojové vybavení   využití   MeSH
• Check Tag
• lidé MeSH

Aim of this study was to evaluate the possible use of infrared thermography as a supplementary method to the ankle-brachial index used in assessing the treatment effect of percutaneous transluminal angioplasty. The study included 21 patients, mean age was 60.22 years. Healthy control group included 20 persons, mean age was 55.60 years. Patients with symptomatic peripheral arterial disease (Fontaine stages I-III) were admitted for endovascular treatment by percutaneous transluminal angioplasty. Thermal images and ankle-brachial index values were obtained before and after treatment by percutaneous transluminal angioplasty. Median temperature change in the treated limb was 0.4℃, for non-treated limb was -0.5℃. The median value of ankle-brachial index in the treated limb increased by 0.17 from 0.81 after the procedure. The median value of ankle-brachial index in the non-treated limb decreased by 0.03 from the value of 1.01. Significant difference between treated limb and non-treated limb in change of ankle-brachial index was found with p value = .0035. The surface temperature obtained by the infrared thermography correlates with ankle-brachial index. We present data showing that the increase of ankle-brachial index is associated with increase of skin temperature in the case of limbs treated by percutaneous transluminal angioplasty. Our results also suggest potential of the use of infrared thermography for monitoring foot temperature as a means of early detection of onset of foot ischemic disorders.

• MeSH
• balónková angioplastika * MeSH
• dolní končetina krevní zásobení   MeSH
• dospělí MeSH
• infračervené záření * MeSH
• lidé středního věku MeSH
• lidé MeSH
• onemocnění periferních arterií diagnóza   patofyziologie   terapie   MeSH
• prediktivní hodnota testů MeSH
• prospektivní studie MeSH
• průchodnost cév MeSH
• regionální krevní průtok MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• studie případů a kontrol MeSH
• teplota kůže * MeSH
• termografie metody   MeSH
• termoregulace MeSH
• tlakový index kotník-paže MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• srovnávací studie MeSH

• Publikační typ
• abstrakt z konference MeSH

Robust voxelwise analysis using tract-based spatial statistics (TBSS) together with permutation statistical method is standardly used in analyzing diffusion tensor imaging (DTI) of brain. A similar analytical method could be useful when studying DTI of cervical spinal cord. Based on anatomical data of sixty-four healthy volunteers, white (WM) and gray matter (GM) masks were created and subsequently registered into DTI space. Using TBSS, two skeleton types were created (single line and dilated for WM as well as GM). From anatomical data, percentage rates of overlap were calculated for all skeletons in relation to WM and GM masks. Voxelwise analysis of fractional anisotropy values depending on age and sex was conducted. Correlation of fraction anisotropy values with age of subjects was also evaluated. The two WM skeleton types showed a high overlap rate with WM masks (~94%); GM skeletons showed lower rates (56% and 42%, respectively, for single line and dilated). WM and GM areas where fraction anisotropy values differ between sexes were identified (p < .05). Furthermore, using voxelwise analysis such WM voxels were identified where fraction anisotropy values differ depending on age (p < .05) and in these voxels linear dependence of fraction anisotropy and age (r = -0.57, p < .001) was confirmed by regression analysis. This dependence was not proven when using WM anatomical masks (r = -0.21, p = .10). The analytical approach presented shown to be useful for group analysis of DTI data for cervical spinal cord.

• MeSH
• algoritmy * MeSH
• anizotropie MeSH
• bílá hmota diagnostické zobrazování   MeSH
• difuzní magnetická rezonance * MeSH
• dospělí MeSH
• krční mícha diagnostické zobrazování   MeSH
• lidé středního věku MeSH
• lidé MeSH
• počítačové zpracování obrazu metody   MeSH
• zdraví dobrovolníci pro lékařské studie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

OBJECTIVES: The main objective of this study was to determine whether infrared thermography could be used as an efficient technique to evaluate the impact of a birth-related brachial plexus injury on the temperature of the injured arm and whether it could be used as a complementary method when diagnosing this injury in clinical praxis. BACKGROUND: Clinically, the brachial plexus injury is a peripheral paresis, which occurs when nerves that send signals from the spinal cord to the shoulder, arm, and hand are stretched or compressed. In principle, the brachial plexus injury, as a long-lasting injury, should be causing hypothermia of the injured arm. METHODS: The usage of contactless infrared thermography could offer a “new view” of the diagnostic process in this case. The present study, therefore, describes a process of clinical infrared thermography examination of three patients of different age and presents results from those examinations. RESULTS AND CONCLUSION: From our results, it can be confirmed that the birth-related brachial plexus injury affects the temperature of the affected arm, especially in the area of the cubital fossa, to an extent that the thermal camera is capable of detecting significant temperature differences between the healthy and injured arms (Tab. 3, Fig. 7, Ref. 13).

Main symptoms found in patients with same diseases as for example COVID-19 is febrile. The infrared thermography (IRT) represents a fast measurement in case of screening in public places. One of the limitations of IRT is the resolution of sensor, which has close connection with the distance between camera and ROI. To maximize the effectivity of resolution of the camera is to reduce the distance from the object. The aim of presented study showed the possibility how to protect the camera or medical staff that operates the device against potential infection or contamination from the person with infection. Two protective foils of different thickness (40 μm; 9 μm) were tested as a barrier between the IRT and the ROI (black body model and human face). Even though the results have shown that the transparent foils decrease linearly the measured value of the temperature, it can be used as a protective barrier between IRT and the object if an appropriate recalculation is done during analysis of IRT images. Results are acceptable in the case of 9μm foil especially. The authors see this possibility as a minor concession from IRT standards but as a great help in health protection. The transparent foil can be used as protective barrier of the infrared camera.

• MeSH
• COVID-19 prevence a kontrola   MeSH
• horečka diagnóza   MeSH
• infračervené záření MeSH
• kůže diagnostické zobrazování   MeSH
• lidé MeSH
• tělesná teplota * MeSH
• termografie * metody   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• práce podpořená grantem MeSH