Spatial analysis of photoplethysmography in cutaneous squamous cell carcinoma

Simon Mylius Rasmussen*, Thomas Nielsen, Henrik Hager, Lars Peter Schousboe

*Kontaktforfatter

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Abstract

The primary treatment of the common malignancy squamous cell carcinoma is surgical removal. In this process, sufficient tissue removal is balanced against unnecessary mutilation. We recently presented a remote photoplethysmography algorithm, which revealed significant differences between processed video recordings of cancer biopsy areas and surrounding tissue. The aim of this study was to investigate whether spatial analyses of photoplethysmography data correlate with post-excision pathological analyses and thus have potential to assist in tumour delineation. Based on high speed video recordings of 11 patients with squamous cell carcinoma, we examined different parameters derived from temporal remote photoplethysmography variations. Signal characteristics values in sites matching histological sections were compared with pathological measures. Values were ranked and statistically tested with a Kendall correlation analysis. A moderate, negative correlation was found between signal oscillations and the width and transversal area of squamous cell carcinoma in the frequencies below 1 Hz and specifically from 0.02 to 0.15 Hz. We have presented a correlation between frequency content and prevalence of cancer based on regular video recordings of squamous cell carcinoma. We believe this is supported by published findings on malignant melanoma. Our findings indicate that photoplethysmography can be used to distinguish SCC from healthy skin.

OriginalsprogEngelsk
Artikelnummer7318
TidsskriftScientific Reports
Vol/bind12
Antal sider10
ISSN2045-2322
DOI
StatusUdgivet - 5. maj 2022

Bibliografisk note

Funding Information:
The authors thank Center Lillebaelt, University of Southern Denmark, Hans Skouby Fond, Overl?ge J?rgen Werner Schous og hustru, Else-Marie Schou, f?dt Wonge?s fond, Harboefonden, Eva & Henry Fr?nkels Mindefond, Thora og Viggo Groves mindefond, Dansk Kr?ftforskningsfond and Knud og Edith Eriksens Mindefond.

Publisher Copyright:
© 2022, The Author(s).

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