Please assess the completion status of the following clinical trial:

Trial Title: Positive and Quantitative Diagnosis of Pleural Effusions by Thoracic Ultrasonography in Patients With Acute Respiratory Failure in the Emergency Department

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: CASE_ONLY
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Patient admitted to the ED~* AND Age \>= 18 years~* AND affiliated or beneficiary to a social security scheme~* AND with clinical signs of ARF:~  * Cyanosis, mottling, encephalopathy~ * Respiratory exhaustion (thoraco abdominal balancing, accessory muscle play)~ * Pulse oxygen saturation (SpO2) \<92% in the air~* AND/OR showing biological signs of ARF:~  * Arterial oxygen pressure (PaO2) \<60 mmHg~ * Or PaO2 / fraction of inspired oxygen (FiO2) ratio \<400.~Exclusion Criteria:~* Patient moribund or for whom a limitation of the care is envisaged~* Pregnant woman~* Absence of exploitable ultrasound image for any reason.

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

Study Arms:
- Ultrasonography thoracic (Type: None): Ultrasonography thoracic

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