The use of proposed method (GLCM contrast) enables biometric evaluation of the effectiveness of cellulite treatment. Traditionally used parameters of infrared analysis such as local points of the maximum and minimum temperature or the median temperatures are not useful in thermal, biometric evaluation of anti-cellulite preparations.

In recent years, popularity of radiofrequency (RF) has increased significantly. They are characterized by a low risk of complications and relatively high effectiveness. RF use high-frequency currents causing oscillating motion of ions resulting in temperature rise stimulating skin regeneration processes. The aim of this work was the thermographic evaluation of the skin exposed to RF of different intensity. The dynamic thermal imaging was used to study the temperature of the skin exposed to RF. The research was carried out in two locations with different adipose tissue content: abdomen (ROI1) and forearm (ROI2). In the ROI1 area, RF was applied at nominal power range from 250 to 1750 W, while in ROI2 area: from 250 to 1000 W. The obtained thermographic data were fitted to exponential functions. A clear dependence of obtained thermokinetic parameters with the anatomical location of exposure to RF was demonstrated. Thicker layer of adipose tissue directly under the skin resulted in obtaining higher maximum temperatures of the skin surface during the procedure (maximum obtained temperature equaled 40.8°C). The temperature of the skin under the head of the device does not translate to subjective patient experiences. In anatomic locations filled with less adipose tissue mass, tolerance to RF is much lower. The dynamics of skin temperature changes, after the RF treatment, can be described by means of a single exponential function where the key parameter is the time constant t defining the dynamics of skin temperature changes. The depth of the RF influence is slightly correlated with the RF power.

BackgroundOne of the ways to treat acne is by using chemical peels. Salicylic, glycolic and pyruvic acids due to their keratolytic and antibacterial properties are often recommended for acne patients.AimsThe aim of the study was to compare the effect of a preparation containing glycolic and salicylic acids with pyruvic acid.Patients/Methods14 women diagnosed with acne took part in the study. The facial treatment area was divided into two parts: right (a preparation containing 50% pyruvic acid) and left side ( a preparation containing glycolic and salicylic acids). A series of four treatments was performed at 2‐week intervals. Skin parameters, namely hydration, sebum secretion and skin colour were measured.ResultsAs a result of using 50% pyruvic acid, the hydration of the right side of the face increased statistically and there was a decrease in the amount of melanin in the epidermis. On the left side of the face, there was an increase in skin hydration after using a mixture of glycolic and salicylic acids. The increase in skin hydration on the left side of the chin and nose was not statistically significant. The use of the mixture of glycolic and salicylic acids affected the skin colour on the left side of the face, on the forehead, cheek and nose.ConclusionChemical peels affect a wide range of pathological factors of acne. A mixture of acids yields fewer side effects than a single acid used in high concentration, but the therapeutic effects are comparable.

BackgroundEfficacy and safety of various treatments using fractional laser or radiofrequency depend, to a large extent, on precise movement of equipment head across the patient’s skin. In addition, they both depend on uniform distribution of emitted pulses throughout the treated skin area. The pulses should be closely adjacent but they should not overlap. Pulse overlapping results in amplification of irradiation dose and carries the danger of unwanted effects.MethodsImages obtained in infrared mode (Flir SC5200 thermovision camera equipped with photon detector) were entered into Matlab environment. Thermal changes in the skin were forced by CO2RE laser. Proposed image analysis and processing methods enable automatic recognition of CO2RE laser sites of action, making possible to assess the correctness of performed cosmetic procedures.Results80 images were acquired and analyzed. Regions of interest (ROI) for the entire treatment field were determined automatically. In accordance with the proposed algorithm, laser-irradiated Li areas (ROI) were determined for the treatment area. On this basis, error values were calculated and expressed as percentage of area not covered by any irradiation dose (δo) and as percentage area which received double dose (δz). The respective values for the analyzed images were δo=17.87±10.5% and δz=1.97±1.5%, respectively.ConclusionsThe presented method of verifying the correctness of performing low-invasive esthetic medical (cosmetic) procedures has proved itself numerous times in practice. Advantages of the method include: automatic determination of coverage error values δo and δz, non-invasive, sterile and remote-controlled thermovisual mode of measurements, and possibility of assessing dynamics of patient’s skin temperature changes.

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