Please assess the completion status of the following clinical trial:

Trial Title: Correlating Brain Tissue Oxygen and Regional Cerebral Oximetry

Study Design Characteristics:
- Allocation: None
- Intervention Model: SEQUENTIAL
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Patients who are scheduled for elective removal of secondary cerebral metastases under general anesthesia.~Exclusion Criteria:~* Patients will be excluded if they refuse to give consent, have evidence of elevated intracranial pressure on preoperative CT scan, have coagulopathy, are taking therapeutic agents known to increase bleeding risk, have a history of cardiovascular disease, cerebrovascular disease, suffer from respiratory failure, or are not fluent English speakers.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Varying cerebral oxygenation with varying ventilation (Type: EXPERIMENTAL): Compare oxygenation under conditions of varying ventilation strategy. Low end tidal CO2/Low inspired oxygen vs High end tidal CO2/high inspired oxygen

Based on this trial design, predict the completion outcome and termination type (if applicable).