Please assess the completion status of the following clinical trial:

Trial Title: Cryoneurolysis of Arnold's Nerve and Follow-up by Tractography: Feasibility Study

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

Eligibility Criteria:
Inclusion Criteria:~* Patient aged 18 and over~* Patient with cephalalgic syndrome\> 3 months,~* Patient with an indication of first cryoneurolysis~* Unilateral character of cephalalgic syndrome~* Failure of oral treatment of stage II~* Positive response (\> 50% efficacy on pain EVA) to infiltration of Arnold's nerve~* Subject having signed his written participation consent~Exclusion Criteria:~* Coagulation disorder~* Infection in progress~* Patient under anticoagulant~* Contraindication to performing an MRI:~  1. Any subject with a vascular stent implanted less than 6 weeks before the examination.~ 2. Any subject with implanted biomedical material deemed unsafe or unsafe in the list: http://www.mrisafety.com/TheList_search.asp.~ 3. Any acquisition procedure that does not meet the conditions required for conditional use in a subject carrying implanted biomedical material deemed conditional in the list: http://www.mrisafety.com/TheList_search.asp.~ 4. Any subject carrying an intra-ocular or intra-cranial ferromagnetic foreign body close to the nerve structures.~ 5. Any subject carrying a biomedical material such as a cardiac, neuronal or sensory stimulator (cochlear implant) or a ventricular bypass valve without medical and paramedical supervision trained to perform MRI in these subjects.~ 6. Non-cooperating subject

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

Study Arms:
- neuralgic patients (Type: EXPERIMENTAL): MRI experimentation

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