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Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation

Pressure Ulcer (PU) is an area of the skin in which cutaneous tissue is compromised and there is progressive damage on the underlying tissue caused by blood flow obstruction due to prolonged external direct pressure. Research has shown that ischemic stress response can be evaluated using skin blood...

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Main Authors: Ramli, Saliza, Raja Ahmad, Raja Mohd Kamil, Ahmad, Siti Anom, Mahmud, Rozi, Mohtarrudin, Norhafizah
Format: Article
Language:English
Published: Universiti Tun Hussein Onn Malaysia Publisher 2019
Online Access:http://psasir.upm.edu.my/id/eprint/82177/1/Skin%20blood%20flow%20response%20signal%20using%20time%20and%20frequency%20domain%20features%20for%20pressure%20ulcer%20evaluation.pdf
http://psasir.upm.edu.my/id/eprint/82177/
https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/4537/2939
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spelling my.upm.eprints.821772020-12-13T18:24:26Z http://psasir.upm.edu.my/id/eprint/82177/ Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation Ramli, Saliza Raja Ahmad, Raja Mohd Kamil Ahmad, Siti Anom Mahmud, Rozi Mohtarrudin, Norhafizah Pressure Ulcer (PU) is an area of the skin in which cutaneous tissue is compromised and there is progressive damage on the underlying tissue caused by blood flow obstruction due to prolonged external direct pressure. Research has shown that ischemic stress response can be evaluated using skin blood flow response (SBFR) signal features which are useful for pressure ulcer evaluation. Trends of peak reactive hyperemia (RH) were observed for three repetitive loading-unloading cycles in previous animal study to investigate tissue recovery. However, tissue recovery and tissue damage cannot be discriminated by the trends of peak RH for short recovery time. The trends of alternative time-domain SBFR features such i.e total hyperemic response as well as frequency-domain features using Fast Fourier Transform (FFT) and Short Time Fourier Transform (STFT) i.e total power spectrum are further investigated to indicate tissue recovery. The results show that total hyperaemic response outperforms peak RH at detecting insufficient tissue recovery with 72% of samples with increasing trend in the short recovery time group compared to 57% of samples for peak RH. Total hyperemic response is effective at discriminating insufficient recovery time while other investigated features are only effective at detecting sufficient recovery time. Universiti Tun Hussein Onn Malaysia Publisher 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/82177/1/Skin%20blood%20flow%20response%20signal%20using%20time%20and%20frequency%20domain%20features%20for%20pressure%20ulcer%20evaluation.pdf Ramli, Saliza and Raja Ahmad, Raja Mohd Kamil and Ahmad, Siti Anom and Mahmud, Rozi and Mohtarrudin, Norhafizah (2019) Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation. International Journal of Integrated Engineering, 11 (3). pp. 31-41. ISSN 2229-838X; ESSN : 2600-7916 https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/4537/2939 10.30880/ijie. 2019.11.03.004
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Pressure Ulcer (PU) is an area of the skin in which cutaneous tissue is compromised and there is progressive damage on the underlying tissue caused by blood flow obstruction due to prolonged external direct pressure. Research has shown that ischemic stress response can be evaluated using skin blood flow response (SBFR) signal features which are useful for pressure ulcer evaluation. Trends of peak reactive hyperemia (RH) were observed for three repetitive loading-unloading cycles in previous animal study to investigate tissue recovery. However, tissue recovery and tissue damage cannot be discriminated by the trends of peak RH for short recovery time. The trends of alternative time-domain SBFR features such i.e total hyperemic response as well as frequency-domain features using Fast Fourier Transform (FFT) and Short Time Fourier Transform (STFT) i.e total power spectrum are further investigated to indicate tissue recovery. The results show that total hyperaemic response outperforms peak RH at detecting insufficient tissue recovery with 72% of samples with increasing trend in the short recovery time group compared to 57% of samples for peak RH. Total hyperemic response is effective at discriminating insufficient recovery time while other investigated features are only effective at detecting sufficient recovery time.
format Article
author Ramli, Saliza
Raja Ahmad, Raja Mohd Kamil
Ahmad, Siti Anom
Mahmud, Rozi
Mohtarrudin, Norhafizah
spellingShingle Ramli, Saliza
Raja Ahmad, Raja Mohd Kamil
Ahmad, Siti Anom
Mahmud, Rozi
Mohtarrudin, Norhafizah
Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation
author_facet Ramli, Saliza
Raja Ahmad, Raja Mohd Kamil
Ahmad, Siti Anom
Mahmud, Rozi
Mohtarrudin, Norhafizah
author_sort Ramli, Saliza
title Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation
title_short Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation
title_full Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation
title_fullStr Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation
title_full_unstemmed Skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation
title_sort skin blood flow response signal using time and frequency domain features for pressure ulcer evaluation
publisher Universiti Tun Hussein Onn Malaysia Publisher
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/82177/1/Skin%20blood%20flow%20response%20signal%20using%20time%20and%20frequency%20domain%20features%20for%20pressure%20ulcer%20evaluation.pdf
http://psasir.upm.edu.my/id/eprint/82177/
https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/4537/2939
_version_ 1687395156143112192
score 13.211869

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