Please assess the completion status of the following clinical trial:

Trial Title: ESP Volunteer LA Spread Controlled by MRI

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

Eligibility Criteria:
Inclusion Criteria:~* Healthy volunteers aged between 18 and 45 year old~Exclusion Criteria:~* Refusal of the volunteer~* Anatomical abnormalities of the thoracic spine identified by physical examination.~* Body mass index ≥30 kg/m2~* Medical contra-indication for Conscious MRI~* Claustrophobia~* Metal implants (pacemaker and others)~* Known allergy or hypersensitivity against Ropivacaine or other amino-amide LAs~* Participation in another clinical study within the last 4 weeks prior to study~* Coagulopathies in the medical history~* Abnormalities in electrocardiography that are considered clinically relevant such as atrio-ventricular block or bradycardia

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 45 Years
- Healthy Volunteers: t

Study Arms:
- Unilateral Erector spinae plane block (Type: EXPERIMENTAL): Thoracic unilateral Erector spinae plane block performed on the volunteer and analyse of the spread of local anesthetic by magnetic resonance imaging

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