TY - GEN
T1 - In vivo Attenuation Coefficient Estimation in the Healthy Forearm and Thigh Human Dermis
AU - Ceciliasaavedra, Ana
AU - Coila, Andres
AU - Arroyo, Junior
AU - Castaneda, Benjamin
AU - Lavarello, Roberto J.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/17
Y1 - 2018/12/17
N2 - Few studies of in vivo normal human dermis characterization have been reported. In this study, the regularized spectral-log difference (RSLD) method was used for the estimation of the attenuation coefficient slope (ACS) in the forearm and thigh dermis with the objective of complementing previous studies on characterization of the forearm dermis and exploring the variations of ACS at different anatomic sites. Ten volunteers without skin injuries between 19-27 years old were scanned in the middle of the ventral side of the forearm and the anterior side of the thigh. The acquisition was performed using a high-frequency ultrasound scanner. The ACS was estimated within an analysis band spanning from 8 to 27 MHz. The average ACS in the forearm dermis was 2.07 dB. cm -1 . MHz -1 , which is in agreement with the slope found in the literature. In addition, a significant difference (p < 0.05) was found between the ACS in the forearm dermis and the thigh dermis (average ACS of 2.54 dB. cm -1 . MHz -1 ), which is consistent with the expected reduced collagen content in the forearm dermis compared with the thigh dermis due to increased sun exposure. Therefore, these results suggest that ACS has the potential to be used as a tool for in vivo skin characterization.
AB - Few studies of in vivo normal human dermis characterization have been reported. In this study, the regularized spectral-log difference (RSLD) method was used for the estimation of the attenuation coefficient slope (ACS) in the forearm and thigh dermis with the objective of complementing previous studies on characterization of the forearm dermis and exploring the variations of ACS at different anatomic sites. Ten volunteers without skin injuries between 19-27 years old were scanned in the middle of the ventral side of the forearm and the anterior side of the thigh. The acquisition was performed using a high-frequency ultrasound scanner. The ACS was estimated within an analysis band spanning from 8 to 27 MHz. The average ACS in the forearm dermis was 2.07 dB. cm -1 . MHz -1 , which is in agreement with the slope found in the literature. In addition, a significant difference (p < 0.05) was found between the ACS in the forearm dermis and the thigh dermis (average ACS of 2.54 dB. cm -1 . MHz -1 ), which is consistent with the expected reduced collagen content in the forearm dermis compared with the thigh dermis due to increased sun exposure. Therefore, these results suggest that ACS has the potential to be used as a tool for in vivo skin characterization.
KW - attenuation coefficient
KW - high-frequency ultrasound
KW - skin
UR - http://www.scopus.com/inward/record.url?scp=85060620543&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2018.8579617
DO - 10.1109/ULTSYM.2018.8579617
M3 - Conference contribution
AN - SCOPUS:85060620543
T3 - IEEE International Ultrasonics Symposium, IUS
BT - 2018 IEEE International Ultrasonics Symposium, IUS 2018
PB - IEEE Computer Society
T2 - 2018 IEEE International Ultrasonics Symposium, IUS 2018
Y2 - 22 October 2018 through 25 October 2018
ER -
