Serial Magnetic Resonance Imaging for the Prediction of Radiation-Induced Changes in Normal Tissue of Patients With Oral Cavity or Skull Base Tumors

Serial Magnetic Resonance Imaging for the Prediction of Radiation-Induced Changes in Normal Tissue of Patients With Oral Cavity or Skull Base Tumors

This phase IV trial studies how well serial magnetic resonance imaging (MRI) after radiation therapy works in predicting radiation-induced changes in the normal tissue of patients with oral cavity or skull base tumors. Performing MRIs after radiation therapy for patients with oral cavity or skull base tumors may help to predict osteoradionecrosis (a change in non-cancerous tissue).

PRIMARY OBJECTIVES: I. Demonstrate the feasibility of serial magnetic resonance (MR) imaging biomarkers for assessment of early, intermediate, and late radiotherapy-attributable physiologic alteration of tumor and normal tissues and the kinetics thereof. II. Develop MR-biomarker inclusive predictive models for development of radiotherapy-attributable normal tissue injury. III. Define dose-response relationships between imaging biomarkers and subsequent radiation-induced effects. OUTLINE: Patients are assigned to 1 of 2 cohorts. COHORT I: Patients may receive a contrast agent intravenously (IV) and then undergo an MRI over 45-60 minutes at baseline, 3-5 weeks after starting standard of care radiation therapy, and then at 2 months, 6 months, 12 months, and 3 years after completing radiation therapy. COHORT II: Patients may receive a contrast agent IV and then undergo an MRI over 45-60 minutes at baseline, and at 5-10 weeks and 12 months after standard of care surgery.

Patients may receive a contrast agent IV and then undergo an MRI over 45-60 minutes at baseline, 3-5 weeks after starting standard of care radiation therapy, and then at 2 months, 6 months, 12 months, and 3 years after completing radiation therapy.

Patients may receive a contrast agent IV and then undergo an MRI over 45-60 minutes at baseline, and at 5-10 weeks and 12 months after standard of care surgery.

Magnetic Resonance Imaging Scan, Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance, MR Imaging, MRI, MRI Scan, NMR Imaging, NMRI, Nuclear Magnetic Resonance Imaging

Will correlate whether post-therapy alterations in the observed multi-parametric imaging features can be used as surrogate bio-markers of normal tissue injury

Penalized spline mixed regression will be used to characterize the induced functional relationships between the delivered dose and imaging biomarkers identified at each imaging time point. Doses for which 95% confidence interval estimates of mean trajectory fail to overlap will characterize ranges that yield significantly different levels of dose-dependent modulation.

Penalized spline mixed regression will be used to characterize the induced functional relationships between the delivered dose and imaging biomarkers identified at each imaging time point. Doses for which 95% confidence interval estimates of mean trajectory fail to overlap will characterize ranges that yield significantly different levels of dosedependent modulation

Inclusion Criteria: Patients with histologically proven malignant neoplasms of the oral cavity and skull base Patients whom, currently or previously, dispositioned to treatment with radiotherapy Patients with good performance status (Eastern Cooperative Oncology Group [ECOG] score 0-2) Patients willing to give written informed consent Exclusion Criteria: Patients unable to tolerate diffusion weighted (DW)-MRI or dynamic contrast-enhanced (DCE)-MRI or having an estimated glomerular filtration rate (GFR) < 60 ml/min/1.73m^2 Patients with contraindication to MRI (e.g. non-MRI compatible metallic implants)