Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body. MRI scanners use ________________ magnetic fields, radio waves, and field gradients to generate images of the organs in the body. MRI is widely used in hospitals and clinics for medical diagnosis, staging of disease and follow-up without exposing the body to ____________. The sustained increase in demand for MRI within the healthcare industry has led to concerns about ___________.

Assinale a alternativa que preenche, correta e respectivamente, as lacunas do texto acima.