Elastography reference values of facial skin elasticity
Marcin Ambroziak1, Bartłomiej Noszczyk2, Piotr Pietruski2
1Ambroziak Clinic, Warsaw, Poland.
Postepy Dermatologii I Alergologii
|December 17, 2019
Summary
Shear wave elastography (SWE) is superior to strain elastography (SE) for assessing facial skin elasticity and establishing age-specific reference ranges. SWE effectively measures age-related changes in skin elasticity, unlike SE.
Area of Science:
- Dermatology
- Medical Imaging
- Aesthetic Medicine
Background:
- Advancements in ultrasonographic transducers enable skin elastography for evaluating skin conditions.
- Skin elastography offers direct assessment of pathological and natural processes in the skin.
Purpose of the Study:
- Compare strain elastography (SE) and shear wave elastography (SWE) for facial skin elasticity.
- Establish normative elastographic parameter ranges for facial skin regions.
Main Methods:
- 71 female volunteers (40-67 years) underwent SE and SWE on forehead, suborbital, cheeks, nasolabial folds, and chin.
- Reference ranges determined using 95% confidence intervals and ROC analysis.
- Age-specific reference values established for SWE parameters.
Main Results:
- SWE parameters correlated inversely with age; SE parameters did not.
- No significant correlation found between SE and SWE facial skin parameters.
- SWE identified significant age-related decreases in facial skin elasticity.
Conclusions:
- SWE is a suitable method for determining elastographic parameters and reference ranges for normal facial skin.
- Facial skin elasticity significantly decreases with age, a factor crucial for interpreting elastographic data.
- SWE is recommended as the reference method for facial skin elasticity assessment.
More Related Videos
13:48Non-contact, Label-free Monitoring of Cells and Extracellular Matrix using Raman Spectroscopy
Published on: May 29, 2012
17.5K
04:51Author Spotlight: Characterizing Environmental Biofilm Mechanics Using Optical Coherence Elastography and its Applications in Wastewater Treatment
Published on: March 1, 2024
1.4K
Related Concept Videos
01:12Elastin is Responsible for Tissue Elasticity
3.0K
Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that it will return to its original shape after being stretched or compressed. Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column.
Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Dense regular elastic tissue contains elastin fibers and...
Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Dense regular elastic tissue contains elastin fibers and...
3.0K
01:15Strain and Elastic Modulus
8.6K
The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or geometry under tensile, volume (also known as bulk), or shear stress, respectively, and is a dimensionless quantity. The strain experienced by a body under tensile or compressive stress is called tensile or compressive strain, respectively. In contrast, the strain experienced under bulk stress and shear stress is known as volume and shear...
8.6K
01:15Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
493
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
493
01:15Reticular Dermis
4.3K
The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
4.3K
01:20Elasticity in Concrete
282
Upon subjecting concrete to moderate or high uniaxial compressive or tensile stresses, the strain response is non-linear relative to the stress applied. As the stress is removed, the resulting stress-strain curve deviates from the original path traced during loading, creating a hysteresis loop, indicative of the concrete's non-linear and non-elastic properties. Typically, a material's modulus of elasticity, which is a measure of the material's stiffness, is inferred from the linear...
282
01:12Elasticity
4.5K
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing deformation are removed. When an elastic material deforms under the action of an external force, it experiences internal resistance to the deformation. However, if no external force is applied, it returns to its original state.
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
4.5K