Non-invasive estimation of in vivo optical properties and hemodynamic parameters of domestic animals: a preliminary study on horses, dogs, and sheep

Frontiers in Veterinary Science

Veterinary Science

Lorenzo Spinelli¹  Bruno Cozzi²  Davide Contini³  Lorenzo Frabasile³  Caterina Amendola³  Alessandro Torricelli⁴  Michela Minero⁵  Vanessa Rabbogliatti⁵  Davide Danilo Zani⁵  Emanuela Dalla Costa⁵  Donatella De Zani⁵  Lucio Petrizzi⁶  Giulia Guerri⁶  Matteo Chincarini⁶  Paola Straticò⁶  Giorgio Vignola⁶  Emanuela Rossi⁷  Mauro Buttafava⁸  Michele Lacerenza⁸  Lina Qiu⁹ 

[1] Consiglio Nazionale delle Ricerche, Istituto di Fotonica e Nanotecnologie, Milan, Italy;Dipartimento di Biomedicina Comparata e Alimentazione, Università degli Studi di Padova, Legnaro, Italy;Dipartimento di Fisica, Politecnico di Milano, Milan, Italy;Dipartimento di Fisica, Politecnico di Milano, Milan, Italy;Consiglio Nazionale delle Ricerche, Istituto di Fotonica e Nanotecnologie, Milan, Italy;Dipartimento di Medicina Veterinaria e Scienze Animali (DIVAS), Università degli Studi di Milano, Lodi, Italy;Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy;Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale, Teramo, Italy;PIONIRS s.r.l., Milan, Italy;School of Software, South China Normal University, Guangzhou, China;

关键词: near infrared spectroscopy;    optical properties;    differential pathlength factor;    hemodynamic properties;    domestic animals;    skeletal muscle;    head;    animal welfare;   

DOI  :  10.3389/fvets.2023.1243325

 received in 2023-06-20, accepted in 2023-09-06,  发布年份 2023

来源: Frontiers

【 摘 要 】

Biosensors applied in veterinary medicine serve as a noninvasive method to determine the health status of animals and, indirectly, their level of welfare. Near infrared spectroscopy (NIRS) has been suggested as a technology with this application. This study presents preliminary in vivo time domain NIRS measurements of optical properties (absorption coefficient, reduced scattering coefficient, and differential pathlength factor) and hemodynamic parameters (concentration of oxygenated hemoglobin, deoxygenated hemoglobin, total hemoglobin, and tissue oxygen saturation) of tissue domestic animals, specifically of skeletal muscle (4 dogs and 6 horses) and head (4 dogs and 19 sheep). The results suggest that TD NIRS in vivo measurements on domestic animals are feasible, and reveal significant variations in the optical and hemodynamic properties among tissue types and species. In horses the different optical and hemodynamic properties of the measured muscles can be attributed to the presence of a thicker adipose layer over the muscle in the Longissimus Dorsi and in the Gluteus Superficialis as compared to the Triceps Brachii. In dogs the absorption coefficient is higher in the head (temporalis musculature) than in skeletal muscles. The smaller absorption coefficient for the head of the sheep as compared to the head of dogs may suggest that in sheep we are indeed reaching the brain cortex while in dog light penetration can be hindered by the strongly absorbing muscle covering the cranium.

【 授权许可】

Unknown   
Copyright © 2023 Frabasile, Amendola, Buttafava, Chincarini, Contini, Cozzi, De Zani, Guerri, Lacerenza, Minero, Petrizzi, Qiu, Rabbogliatti, Rossi, Spinelli, Straticò, Vignola, Zani, Dalla Costa and Torricelli.