Please assess the completion status of the following clinical trial:

Trial Title: Repeatability in Hyperpolarized 3-Helium With MRI

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* must be between the ages of 18 and 90~* must have a Body Mass Index (BMI) of \< 32 and weigh \< 200 lbs.~Exclusion Criteria:~* if female, must not be pregnant or breastfeeding~* must not have any metal objects in or on their body including body piercings that cannot be easily removed, bullets, metallic fragments or slivers in eyes, skin, etc., pacemaker or defibrillation, aneurysm clips, cochlear implants, coronary stents, or neurostimulation.~* must not have a history of claustrophobia, panic disorders, anxiety attacks, atrial fibrillation, uncontrolled high blood pressure, frequent ventricular ectopic rhythm, hemodynamic instability, kidney dysfunction or heart disease.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 90 Years
- Healthy Volunteers: t

Study Arms:
- Group One: Prone MRI Scans (Type: EXPERIMENTAL): Subjects will have vitals, pulmonary function tests, initial proton MRI scan, prone hyperpolarized 3 helium gas scan
- Group Two: Supine MRI scans (Type: ACTIVE_COMPARATOR): Subjects will have vitals, pulmonary function tests, initial protocol MRI scan, supine hyperpolarized 3 helium gas scan

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