Accuracy Performance Verification of the INVOS™ System in Pediatrics

Inclusion Criteria: 1. Under 21 years of age 2. Meets weight requirement for sensors under study 3. Scheduled for a diagnostic or interventional cardiac catheterization procedure with general anesthesia or sedation 4. Arterial and venous access as part of the planned catheterization procedure Exclusion Criteria: 1. Prior known severe allergies to medical grade adhesive/tape (Band-Aid) \[self-reported\] 2. A skin condition at the sensor site (e.g., rash, abrasion, laceration) 3. Craniofacial disease producing abnormal forehead anatomy and/or preventing forehead application of the sensor 4. A known structural brain lesion beneath the sensor 5. Known hemoglobinopathy 6. Inability to lie supine with neutral neck position during catheterization 7. Cerebrovascular disease 8. An emergent, life threatening condition impacting study conduct 9. Unwillingness or inability to sign informed consent (IC) or assent by the parents/guardians of child 10. Currently receiving phototherapy for bilirubin 11. Arterial or venous anatomy that would preclude obtaining an accurate paired sample 12. Known pregnancy