Intraoperative Optical Monitoring of Spinal Cord Hemodynamics Using Multiwavelength Imaging System.
NIRS
PPG
monitoring
multispectral
sensors
spinal cord
Journal
Sensors (Basel, Switzerland)
ISSN: 1424-8220
Titre abrégé: Sensors (Basel)
Pays: Switzerland
ID NLM: 101204366
Informations de publication
Date de publication:
19 May 2022
19 May 2022
Historique:
received:
26
04
2022
revised:
13
05
2022
accepted:
16
05
2022
entrez:
28
5
2022
pubmed:
29
5
2022
medline:
1
6
2022
Statut:
epublish
Résumé
The spinal cord is a major structure of the central nervous system allowing, among other things, the transmission of afferent sensory and efferent motor information. During spinal surgery, such as scoliosis correction, this structure can be damaged, resulting in major neurological damage to the patient. To date, there is no direct way to monitor the oxygenation of the spinal cord intraoperatively to reflect its vitality. This is essential information that would allow surgeons to adapt their procedure in case of ischemic suffering of the spinal cord. We report the development of a specific device to monitor the functional status of biological tissues with high resolution. The device, operating with multiple wavelengths, uses Near-InfraRed Spectroscopy (NIRS) in combination with other additional sensors, including ElectroNeuroGraphy (ENG). In this paper, we focused primarily on aspects of the PhotoPlethysmoGram (PPG), emanating from four different light sources to show in real time and record biological signals from the spinal cord in transmission and reflection modes. This multispectral system was successfully tested in in vivo experiments on the spinal cord of a pig for specific medical applications.
Identifiants
pubmed: 35632249
pii: s22103840
doi: 10.3390/s22103840
pmc: PMC9146887
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
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