In order to identify and characterize the sonographic variations between different age groups, 48 subjects, 24 aged 27-30, and 24 over 60, were studied with a 20-MHz B scanner on six skin sites. Images were evaluated by the instrument's standard programme and by a new image analysis software package enabling the characterization of steady structures or transitory functional aspects of skin reactions, by highlighting areas in which the echo amplitudes are included within selected values, and by calculating their extension. Three bands were selected as intervals of interest, respectively, highlighting hyporeflecting parts of the dermis, tissue reflecting with intermediate amplitude values and hyperreflecting epidermis and dermis. This method was employed to assess skin thickness, demonstrating its decrease in elderly skin, to characterize and quantify the hypoechogenic subepidermal band appearing in the elderly at volar and dorsal forearm skin, and to evaluate echogenicity of the upper and lower dermis. Our data show that there is a great regional variation in the behaviour of ultrasound reflection of elderly skin in respect to the skin of young subjects. However, a general trend can be identified, consisting in a shift from low-intensity ultrasound echoes, characteristic in the dermis of young subjects, to intermediate or high reflection amplitudes, which are more frequent in elderly skin. Thus, the echographic method provides two parameters for the evaluation of skin aging. Besides an accurate and early assessment of skin atrophy, it also enables an evaluation of physical properties of the skin, which do not influence the morphological aspect in microscopy, but induce variations of the acoustic behavior which are expressed by a modification of the reflectivity to ultrasound.

Echographic Evaluation With Image-Analysis Of Normal Skin - Variations According To Age And Sex / Seidenari, Stefania; A., Pagnoni; A., Di Nardo; Giannetti, Alberto. - In: SKIN PHARMACOLOGY. - ISSN 1011-0283. - STAMPA. - 7:(1994), pp. 201-209.

Echographic Evaluation With Image-Analysis Of Normal Skin - Variations According To Age And Sex

SEIDENARI, Stefania;GIANNETTI, Alberto
1994

Abstract

In order to identify and characterize the sonographic variations between different age groups, 48 subjects, 24 aged 27-30, and 24 over 60, were studied with a 20-MHz B scanner on six skin sites. Images were evaluated by the instrument's standard programme and by a new image analysis software package enabling the characterization of steady structures or transitory functional aspects of skin reactions, by highlighting areas in which the echo amplitudes are included within selected values, and by calculating their extension. Three bands were selected as intervals of interest, respectively, highlighting hyporeflecting parts of the dermis, tissue reflecting with intermediate amplitude values and hyperreflecting epidermis and dermis. This method was employed to assess skin thickness, demonstrating its decrease in elderly skin, to characterize and quantify the hypoechogenic subepidermal band appearing in the elderly at volar and dorsal forearm skin, and to evaluate echogenicity of the upper and lower dermis. Our data show that there is a great regional variation in the behaviour of ultrasound reflection of elderly skin in respect to the skin of young subjects. However, a general trend can be identified, consisting in a shift from low-intensity ultrasound echoes, characteristic in the dermis of young subjects, to intermediate or high reflection amplitudes, which are more frequent in elderly skin. Thus, the echographic method provides two parameters for the evaluation of skin aging. Besides an accurate and early assessment of skin atrophy, it also enables an evaluation of physical properties of the skin, which do not influence the morphological aspect in microscopy, but induce variations of the acoustic behavior which are expressed by a modification of the reflectivity to ultrasound.
7
201
209
Echographic Evaluation With Image-Analysis Of Normal Skin - Variations According To Age And Sex / Seidenari, Stefania; A., Pagnoni; A., Di Nardo; Giannetti, Alberto. - In: SKIN PHARMACOLOGY. - ISSN 1011-0283. - STAMPA. - 7:(1994), pp. 201-209.
Seidenari, Stefania; A., Pagnoni; A., Di Nardo; Giannetti, Alberto
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/612102
Citazioni
  • ???jsp.display-item.citation.pmc??? 22
  • Scopus 144
  • ???jsp.display-item.citation.isi??? 130
social impact