Probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function

Abstract Erectile dysfunction (ED) is mostly due to the lack of blood flow into the penis. In the past 20 years, near-infrared spectroscopy (NIRS) was used in measuring the concentrations and temporal dynamics of different hemoglobin types. However, the dynamics of the light absorption (photoplethys...

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Autores principales:	Yuan-Hung Pong, Yi-Kai Chang, Ching-En Hsu, Po-Cheng Chen, Yu-Chuan Lu, Vincent F. S. Tsai, Hong-Chiang Chang, Men-Tzung Lo, Chen Lin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7704d354cd83447d8eedc5d60a975063
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spelling	oai:doaj.org-article:7704d354cd83447d8eedc5d60a9750632021-12-02T17:30:41ZProbing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function10.1038/s41598-021-91582-92045-2322https://doaj.org/article/7704d354cd83447d8eedc5d60a9750632021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91582-9https://doaj.org/toc/2045-2322Abstract Erectile dysfunction (ED) is mostly due to the lack of blood flow into the penis. In the past 20 years, near-infrared spectroscopy (NIRS) was used in measuring the concentrations and temporal dynamics of different hemoglobin types. However, the dynamics of the light absorption (photoplethysmography; PPG) have not been applied to survey penile hemodynamics and erection quality. This paper compared the use of photoplethysmography (PPG) to study vascular ED with standard penile Doppler ultrasonography. Men diagnosed with vascular ED for at least 6 months and nominated for penile ultrasonography were included. PPG signals were collected during the ultrasound examination. All beat-to-beat PPG waveforms were aligned with the peak and averaged to one representative template waveform for feature analysis, including amplitude differences (APD) index, reflection time index (RTI), augmentation index (AI), and perfusion index (PI). An inverse correlation was found between end-erection amplitude and both erection hardness score (EHS) and resistive index (RI). APD index and EHS as well as the international index of erectile function-5 (IIEF) and RI were positively correlated. RTI and AI were inversely correlated to IIEF and RI. PI was positively correlated to RI. PPG may therefore be useful as a noninvasive, convenient, technique for sexual function evaluation.Yuan-Hung PongYi-Kai ChangChing-En HsuPo-Cheng ChenYu-Chuan LuVincent F. S. TsaiHong-Chiang ChangMen-Tzung LoChen LinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yuan-Hung Pong Yi-Kai Chang Ching-En Hsu Po-Cheng Chen Yu-Chuan Lu Vincent F. S. Tsai Hong-Chiang Chang Men-Tzung Lo Chen Lin Probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function
description	Abstract Erectile dysfunction (ED) is mostly due to the lack of blood flow into the penis. In the past 20 years, near-infrared spectroscopy (NIRS) was used in measuring the concentrations and temporal dynamics of different hemoglobin types. However, the dynamics of the light absorption (photoplethysmography; PPG) have not been applied to survey penile hemodynamics and erection quality. This paper compared the use of photoplethysmography (PPG) to study vascular ED with standard penile Doppler ultrasonography. Men diagnosed with vascular ED for at least 6 months and nominated for penile ultrasonography were included. PPG signals were collected during the ultrasound examination. All beat-to-beat PPG waveforms were aligned with the peak and averaged to one representative template waveform for feature analysis, including amplitude differences (APD) index, reflection time index (RTI), augmentation index (AI), and perfusion index (PI). An inverse correlation was found between end-erection amplitude and both erection hardness score (EHS) and resistive index (RI). APD index and EHS as well as the international index of erectile function-5 (IIEF) and RI were positively correlated. RTI and AI were inversely correlated to IIEF and RI. PI was positively correlated to RI. PPG may therefore be useful as a noninvasive, convenient, technique for sexual function evaluation.
format	article
author	Yuan-Hung Pong Yi-Kai Chang Ching-En Hsu Po-Cheng Chen Yu-Chuan Lu Vincent F. S. Tsai Hong-Chiang Chang Men-Tzung Lo Chen Lin
author_facet	Yuan-Hung Pong Yi-Kai Chang Ching-En Hsu Po-Cheng Chen Yu-Chuan Lu Vincent F. S. Tsai Hong-Chiang Chang Men-Tzung Lo Chen Lin
author_sort	Yuan-Hung Pong
title	Probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function
title_short	Probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function
title_full	Probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function
title_fullStr	Probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function
title_full_unstemmed	Probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function
title_sort	probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7704d354cd83447d8eedc5d60a975063
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Probing penile hemodynamics by using photoplethysmography as objective indicators for male erection quality and sexual function

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