Please assess the completion status of the following clinical trial:

Trial Title: Cerebral Blood Flow During Hemodialysis

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

Eligibility Criteria:
Inclusion Criteria:~* Adult, age ≥ 65 years, HD patients who have been treated with maintenance HD, of which at least 6 patients for a longer period of time (\>1 year).~* Patients must have an arteriovenous fistula without recirculation~* The hemoglobin value must be in the target range (6.2 - 8mmol/l) since at least 1 month~Exclusion Criteria:~* The absence of informed consent~* Diagnosis of dementia, hydrocephalus, history of raised intracranial pressure, significant (\>70%) carotid artery stenosis, end-stage liver disease.~* Actively treated cancer~* Actual hospital admission at timing of HD study session~* MRI incompatible implants in the body or any other contraindication for MRI~* Claustrophobia~* The refusal to be informed of significant carotid artery stenosis or structural brain abnormalities that could be detected during the study.

- Gender: ALL
- Minimum Age: 65 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- CBF change during hemodialysis (Type: OTHER): \[15O\]H2O PET-CT scan and NIRS (Invos)

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