Felix Scholkmann1,2, Andrea Scherer-Vrana3. 1. University Hospital Zurich, University of Zurich, Department of Neonatology, Biomedical Optics Research Laboratory, Zurich, Switzerland. Felix.Scholkmann@usz.ch. 2. Scholkmann Data Analysis Services, Scientific Consulting and Physical Engineering, Zurich, Switzerland. Felix.Scholkmann@usz.ch. 3. Interdisciplinary Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, Zurich, Switzerland.
Abstract
BACKGROUND: Near-infrared spectroscopy (NIRS) tissue oximeters enable non-invasive measurement of muscle oxygenation and perfusion. Several NIRS oximeters are currently available, particularly for muscle measurements. AIM: To evaluate the agreement of oxygenation and perfusion measurements obtained by two devices (Moxy, Fortiori Designs LLC, USA, and Nimo, Nirox, Italy) during an arterial occlusion test on the arm. SUBJECT AND METHODS: Arterial occlusions were conducted at the arm of one individual for 10 min with 200 mmHg. Measurements were made twice a day on five different days. Both NIRS devices were fixed at the arm (covering the muscles extensor carpi ulnaris, extensor digitorum, and flexor carpi ulnaris). RESULTS: The experiment revealed that i) both devices could detect changes in muscle oxygenation and perfusion during the occlusion, but ii) the magnitudes and dynamic changes differed between the two devices. DISCUSSION AND CONCLUSION: Both devices had different performances with regard to the measurement of tissue oxygenation and perfusion. This study shows that it might be worthwhile to compare all NIRS tissue oximeters currently available for muscle measurement in a large systematic study to increase the comparability of measurements obtained with different devices.
BACKGROUND: Near-infrared spectroscopy (NIRS) tissue oximeters enable non-invasive measurement of muscle oxygenation and perfusion. Several NIRS oximeters are currently available, particularly for muscle measurements. AIM: To evaluate the agreement of oxygenation and perfusion measurements obtained by two devices (Moxy, Fortiori Designs LLC, USA, and Nimo, Nirox, Italy) during an arterial occlusion test on the arm. SUBJECT AND METHODS: Arterial occlusions were conducted at the arm of one individual for 10 min with 200 mmHg. Measurements were made twice a day on five different days. Both NIRS devices were fixed at the arm (covering the muscles extensor carpi ulnaris, extensor digitorum, and flexor carpi ulnaris). RESULTS: The experiment revealed that i) both devices could detect changes in muscle oxygenation and perfusion during the occlusion, but ii) the magnitudes and dynamic changes differed between the two devices. DISCUSSION AND CONCLUSION: Both devices had different performances with regard to the measurement of tissue oxygenation and perfusion. This study shows that it might be worthwhile to compare all NIRS tissue oximeters currently available for muscle measurement in a large systematic study to increase the comparability of measurements obtained with different devices.
Entities:
Keywords:
Muscle oxygenation and perfusion; NIRS; Near-infrared spectroscopy; Validation
Authors: Anke Langenfeld; Brigitte Wirth; Andrea Scherer-Vrana; Fabienne Riner; Kyra Gaehwiler; Paola Valdivieso; B Kim Humphreys; Felix Scholkmann; Martin Flueck; Petra Schweinhardt Journal: Sci Rep Date: 2022-05-18 Impact factor: 4.996
Authors: Claudia Miranda-Fuentes; Luis Javier Chirosa-Ríos; Isabel María Guisado-Requena; Pedro Delgado-Floody; Daniel Jerez-Mayorga Journal: Int J Environ Res Public Health Date: 2021-04-18 Impact factor: 3.390
Authors: Claudia Miranda-Fuentes; Isabel María Guisado-Requena; Pedro Delgado-Floody; Leonidas Arias-Poblete; Alejandro Pérez-Castilla; Daniel Jerez-Mayorga; Luis Javier Chirosa-Rios Journal: Int J Environ Res Public Health Date: 2020-11-27 Impact factor: 3.390