Please assess the completion status of the following clinical trial:

Trial Title: Efficacy of Optison Echo Contrast to Detect Thrombus in Left Atrial Appendage

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* \> 18 years old~* Cognitively sound and able to provide informed consent~* Indicated for TEE as a standard clinical procedure for evaluation of cardiac health status.~Exclusion Criteria:~* Contraindicated for Optison administration~* Known right-to-left or bi-directional cardiac shunts~* Hypersensitivity to perflutren, blood, blood products or albumen~* Women who are pregnant~* Removal of Left Atrial Appendage~* Not able to provide informed consent

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 100 Years
- Healthy Volunteers: f

Study Arms:
- Echo arm (Type: EXPERIMENTAL): Subjects with atrial fibrillation who are undergoing a TEE procedure will be assessed using Optison echocardiography contrast agent

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