An Investigational Scan (hpMRI) for Monitoring Treatment Response in Patients With Thyroid Cancer and Other Malignancies of the Head and Neck Undergoing Radiation Therapy and/or Systemic Therapy

This trial investigates whether hyperpolarized magnetic resonance imaging (hpMRI) can predict treatment response in patients with thyroid cancer and other malignancies of the head and neck undergoing radiation therapy and/or receiving systemic therapy before surgery. An hpMRI is like a standard MRI but involves the use of an imaging contrast agent called hyperpolarized 13-C-pyruvate. Diagnostic procedures, such as hpMRI, may predict a patient's response to treatment and may help plan the best treatment.