Overview
MRI uses strong magnetic fields and radiofrequency pulses to generate images with excellent soft tissue contrast and multiple contrast mechanisms without ionizing radiation.
Technique
Sequences such as T1 T2 FLAIR DWI and GRE and advanced methods including diffusion perfusion and spectroscopy tailor contrast to the clinical question.
Clinical Uses
MRI is preferred for neurologic musculoskeletal cardiac and pelvic imaging and for characterization of soft tissue and marrow lesions.
Limitations and Safety
Contraindications include certain implants and claustrophobia. Gadolinium contrast has rare risks and should be used judiciously.