Please assess the completion status of the following clinical trial:

Trial Title: Ultrasound for Double Lumen Endotracheal Tube

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: SINGLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Surgery requiring placement of double-lumen endotracheal tube.~* ASA 1-3~Exclusion Criteria:~* History of difficult or impossible intubation.~* Clinical findings of possible difficult intubation according to the standard preoperative airway assessment.~* Impossible placement of a double lumen tube

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Ultrasound (Type: EXPERIMENTAL): Determination of correct placement of the double lumen tube by lung ultrasound.
- Clinical (Type: ACTIVE_COMPARATOR): Determination of correct placement of the double lumen tube by clinical examination.

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