Technologies
Regional Oximetry
O3 monitors the regional hemoglobin oxygen saturation of blood (rSO2) in both cerebral and somatic regions for all patient populations. By offering additional insight into changes in tissue oxygen levels, O3 may help clinicians monitor regional oxygenation when pulse oximetry alone may not be fully indicative of oxygen status in a particular region.
The Importance of Cerebral Oximetry
The brain is a vital organ, making it essential to maintain optimal cerebral blood flow in the OR and ICU. When peripheral pulse oximetry alone may not fully reflect brain oxygen levels, O3 offers clinicians deeper insight into oxygen status, which may help improve patient outcomes.
Comprehensive Display
O3 connects to the Root patient monitoring platform, displaying the following parameters to provide key insights into a patient’s regional oxygenation status.

Available for All Patient Populations
With their flexible design, O3 sensors easily conform to and allow for ergonomic application on foreheads of all sizes.

Infant/Neonatal
3% ARMS* trending accuracy specification

Pediatric
5% ARMS absolute accuracy and 3% ARMS trending accuracy specifications

Adult
4% ARMS absolute accuracy and 3% ARMS trending accuracy specifications
Watch the video to learn more.
Clinical Evidence
Explore evidence highlighting the clinical utility of O3 in various clinical settings.
CASE SERIES
“Integrating combinations of different monitoring modalities such as cerebral and somatic oximetry with pEEG can help the diagnosis and treatment of organ malperfusion and related dysfunction.”1
CASE SERIES
“Variations in ΔHHbi, Δo2Hbi, and ΔcHbi can be used clinically to further characterize cerebral desaturation based on changes in cerebral metabolism and oxygen blood content, arterial cerebral blood flow, and venous congestion.”2
RESOURCES
Resources Need more information? Below are key resources about O3 Regional Oximetry.
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References
Couture EJ et al. J Can Anesth. 2019;66(5):532-539.
Calderone A et al. Anesth Analg. 2022 Dec;135(6):1304-1314.
For professional use. See instructions for use for full prescribing information including indications, contraindications, warnings and precautions.
* ARMS accuracy is a statistical calculation of the difference between device measurements and reference measurements. Approximately two-thirds of the device measurements fell within ± ARMS of the reference measurements in a controlled study.
PLCO-007916/PLM-10085E-1125