Evaluation of a Cardiac Coherence Session to Reducing Patients' Anxiety During a MRI Examination

Inclusion Criteria: * Person affiliated to or benefiting from a social security scheme; * Free, informed and written consent signed by the participant and the investigator (at the latest on the day of inclusion and before any examination required by the research); * Patient to undergo an MRI examination of the upper half of the body * Patient over 18 years old * Patient with a high level of anxiety (score ≥ 4) in relation to MRI Non-inclusion Criteria: * Patient under legal protection or under another protection regime (guardianship, curatorship). * Sedated or unconscious patient * Patient performing an emergency MRI examination * Patient with a level of French language that does not allow sufficient understanding for the completion of questionnaires Exclusion criteria: \- STAI Y-A score \< 46 (insignificant or low anxiety)