Optimization of the Acquisition Sequence to Improve the Quality and Comfort of Magnetic Resonance Imaging Exam

Inclusion Criteria for all subjects : * to be over 18 year-old, * to be able to understand the instructions given, * to be enrolled in a social security plan, * to have underwent a pre-inclusion medical examination, * to give a written consent. Inclusion Criteria especially for Patients : * to perform a MRI examination of the head, neck, spine, thorax, abdomen, pelvis, retroperitoneum, lower limbs, upper limbs or whole body during clinical follow-up care. Exclusion Criteria for all subjects : * any contraindication to MR examination (active medical device, ferromagnetic foreign body, pregnancy, morbid obesity, claustrophobia, … ), * subject under a measure of legal protection. Exclusion Criteria especially for Healthy Subjects : * to have a pathology in the anatomical area to be imaged * to be employed by the CHRU of Nancy or having the slightest link of subordination with the CHRU of Nancy. Exclusion Criteria especially for Patients : * to have a limited MRI examination time due to a sensitive clinical situation (sedation, unstable hemodynamic state, postoperative).