Autoren:	Heimes, Diana Becker, Philipp Thiem, Daniel G. E. Kuchen, Robert Kyyak, Solomiya Kämmerer, Peer W.
Titel:	Is hyperspectral imaging suitable for assessing collateral circulation prior radial forearm free flap harvesting? : Comparison of hyperspectral imaging and conventional Allen’s test
Online-Publikationsdatum:	12-Jan-2022
Erscheinungsdatum:	2021
Sprache des Dokuments:	Englisch
Zusammenfassung/Abstract:	This cross-sectional study aims to compare a new and non-invasive approach using hyperspectral imaging (HSI) with the conventional modified Allen’s test (MAT) for the assessment of collateral perfusion prior to radial forearm free flap harvest in healthy adults. (2) HSI of the right hand of 114 patients was recorded. Here, three recordings were carried out: (I) basic status (perfusion), (II) after occlusion of ulnar and radial artery (occlusion) and (III) after releasing the ulnar artery (reperfusion). At all recordings, tissue oxygenation/superficial perfusion (StO2 (0–100%); 0–1 mm depth), tissue hemoglobin index (THI (0–100)) and near infrared perfusion index/deep perfusion (NIR (0–100); 0–4 mm depth) were assessed. A modified Allen’s test (control) was conducted and compared with the HSI-results. (3) Results: Statistically significant differences between perfusion (I) and artery occlusion (II) and between artery occlusion (II) and reperfusion (III) could be observed within the population with a non-pathological MAT (each p 8 s, an impairment in reperfusion was shown (each p p < 0.01). (4) Conclusions: The results indicate a reliable differentiation between perfusion and occlusion by HSI. Therefore, HSI could be a useful tool for verification of the correct performance of the MAT as well as to confirm the final diagnosis, as it provides an objective, reproducible method whose results strongly correlate with those obtained by MAT. What is more, it can be easily applied by non-medical personnel. Keywords: hyperspectral imaging Allen’s test radial forearm free flap microvascular surgery microsurgery reconstructive surgery
DDC-Sachgruppe:	610 Medizin 610 Medical sciences
Veröffentlichende Institution:	Johannes Gutenberg-Universität Mainz
Organisationseinheit:	FB 04 Medizin
Veröffentlichungsort:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-6695
Version:	Published version
Publikationstyp:	Zeitschriftenaufsatz
Weitere Angaben zur Dokumentart:	Scientific article
Nutzungsrechte:	CC BY
Informationen zu den Nutzungsrechten:	https://creativecommons.org/licenses/by/4.0/
Zeitschrift:	Journal of Personalized Medicine 11 6
Seitenzahl oder Artikelnummer:	531
Verlag:	MDPI
Verlagsort:	Basel
Erscheinungsdatum:	2021
ISSN:	2075-4426
URL der Originalveröffentlichung:	https://doi.org/10.3390/jpm11060531
DOI der Originalveröffentlichung:	10.3390/jpm11060531
Enthalten in den Sammlungen:	JGU-Publikationen