Non-invasive measurements of skin thickness and density changes in normal and abnormal skin using an ultrasonic scanner

1991 ◽  
Vol 2 (3) ◽  
pp. 240
Author(s):  
Masahiro Nishimura ◽  
Takuo Tsuji
Keyword(s):  
Skin Thickness ◽  
Non Invasive ◽  
Ultrasonic Scanner

scholarly journals Assessment of skin condition by the modern non-invasive methods in the process of age-related changes correction using the erbium and neodymium lasers

2018 ◽  
Vol 20 (1) ◽  
pp. 102-107
Author(s):  
N A Shanina ◽  
A V Patrushev ◽  
A V Samtsov ◽  
N S Kravtsova
Keyword(s):  
High Frequency ◽  
Laser Scanning ◽  
Diagnostic Methods ◽  
Laser Exposure ◽  
Skin Thickness ◽  
High Frequency Ultrasound ◽  
Skin Changes ◽  
Non Invasive ◽  
Age Related ◽  
Frequency Ultrasound

The histological examination method is the «gold standard» in evaluating of age-related skin changes, however in most cases biopsy is an unacceptable option by ethical reasons. An alternative option are non-invasive diagnostic methods, in which the evaluation of changes can be carried out in real time without damaging the skin. Nowadays, such methods as high-frequency ultrasound, optical coherence tomography, laser scanning confocal microscopy, magnetic resonance imaging are used. In addition to the above-mentioned methods, it is necessary to hold a standardized clinical evaluation and determination of the physiological parameters of the skin. The evaluation of age-related skin changes of face zone and neck zone before and after the application of the combined erbium and neodymium laser exposure on the «Fotona» apparatus using the «Fotona 4D» technique has been held. There were 80 examined patients aged from 32 to 66 who, after a comprehensive clinical examination, conducted 2 procedures using the «Fotona 4D» method with an interval of 1 month. There was a significant decrease in the index of evaluation of age-related facial skin changes in the process of correction, which indicates a pronounced clinical effectiveness of the proposed technique (27 points at the screening stage and 12 points at 2 months after correction). There was also a normalization of skin moisture and an improvement in relief, reduction of pore diameter and pigmentation area. Analysis of high-frequency ultrasound data showed a statistically significant increase in skin thickness, mainly due to the dermis.

scholarly journals Ultrasonographic examination of the canine skin: a review

2018 ◽  
Vol 67 (1) ◽  
pp. 17
Author(s):  
P. MANTIS (Π. ΜΑΝΤΗΣ) ◽  
M. N. SARIDOMICHELAKIS (Μ.Ν. ΣΑΡΙΔΟΜΙΧΕΛΑΚΗΣ)
Keyword(s):  
Soft Tissue ◽  
Diagnostic Imaging ◽  
Real Time ◽  
High Frequency ◽  
Imaging Modality ◽  
Intermediate Frequency ◽  
Hair Follicles ◽  
Skin Thickness ◽  
Ultrasonographic Examination ◽  
Non Invasive

Real time B-mode ultrasonography is a non-invasive diagnostic imaging modality that does not use radiation and allows examination of various soft tissue structures. For many years it is used in human dermatology and in the last decade it has entered the canine dermatology arena. Based on the frequency employed, cutaneous ultrasonography may be classified as intermediate- (7-15 MHz) or high-frequency (20 MHz or higher). Using intermediate frequency, the ultrasonographic features of normal canine skin are consistent and three distinct visible layers can be seen. Using a 50 MHz transducer, the epidermis and hair follicles are also identified and accurate measurements of skin thickness can be obtained. The aim of this article is to review the available published knowledge regarding ultrasonographic examination of the canine skin.

scholarly journals Overcoming Individual Discrepancies, a Learning Model for Non-Invasive Blood Glucose Measurement

2019 ◽  
Vol 9 (1) ◽  
pp. 192 ◽  
Author(s):  
Weijie Liu ◽  
Anpeng Huang ◽  
Ping Wan
Keyword(s):  
Blood Glucose ◽  
Blood Glucose Concentration ◽  
Learning Model ◽  
Blood Glucose Measurement ◽  
Glucose Measurement ◽  
Skin Thickness ◽  
Non Invasive ◽  
Multi Wavelength ◽  
Great Sense ◽  
Glucose Management

Non-invasive Glucose Measurement (NGM) technology makes great sense for the blood glucose management of patients with hyperglycemia or hypoglycemia. Individual Discrepancies (IDs), e.g., skin thickness and color, not only block the development of NGM, but also become the reason why NGM cannot be widely used. To solve this problem, our solution is designing an individual customized NGM model that can measure these discrepancies through multi-wavelength and tune parameters for glucose estimating. In this paper, an NGM prototype is designed, and a learning model for glucose estimating with automatically parameters tuning based on Independent Component Analysis (ICA) and Random Forest (RF) is presented. The clinic trial proves that the correlation coefficient between estimation and reference Blood Glucose Concentration (BGC) can reach 0.5 after merely 10 times of learning, and rise to 0.8 after about 60 times of learning.

scholarly journals Instrumental Assessment of the Face Skin Aging in Women

2018 ◽  
Vol 19 (3) ◽  
pp. 223-228 ◽  
Author(s):  
Natalia Evgenievna Manturova ◽  
Victor Aleksandrovich Stupin ◽  
Galina Olegovna Smirnova ◽  
Ekaterina Vladimirovna Silina
Keyword(s):  
Laser Doppler Flowmetry ◽  
Subcutaneous Fat ◽  
Age Groups ◽  
Skin Condition ◽  
Laser Doppler ◽  
Skin Thickness ◽  
Transcutaneous Oxygen ◽  
Doppler Flowmetry ◽  
Circulatory Disturbance ◽  
Non Invasive

Abstract The aim of this study is to conduct several non-invasive methods for assessing the level of circulatory disturbance, elasticity and aging of skin in patients of different age groups in order to expand the diagnostic capabilities and evaluate the effectiveness of current research in aesthetic medicine. Clinical and instrumental exploration of 160 women aged 17 to 75 years with varying degrees of involutional skin changes was carried out. To objectify the assessment of skin condition, in all group of patients modern instrumental methods were used, such as: elastometry, ultrasound examination of the skin, laser Doppler flowmetry, transcutaneous oxygen tension. Concurrent implementation of several non-invasive methods for assessing the level of circulatory disturbance, elasticity and aging of the skin, allowed us to find new possibilities for studying the functional state of the skin. These methods extend the possibilities of ultrasonic research methods used today in aesthetic cosmetology. The obtained comparative data of elastometry, ultrasonography, laser Doppler flowmetry and transcutaneous oximetry in patients of different age groups showed the presence of elasticity and structure defect, skin thickness and subcutaneous fat, as well as microcirculation changes since 25 years and marked changes after 40 years.

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