Advanced CT and MR Imaging of the Posttreatment Head and Neck

• Published in: Neuroimaging clinics of North America Vol. 32; no. 1; pp. 133 - 144
• Main Authors: Lobo, Remy, Turk, Sevcan, Bapuraj, J. Rajiv, Srinivasan, Ashok
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01-02-2022
• Subjects: Diffusion imaging; Dual-energy CT; Head and neck cancer; Imaging surveillance; MRI; Perfusion imaging; CT; Perfusion imaging; MRI; Diffusion imaging; Head and neck cancer; Dual-energy CT; Imaging surveillance
• ISSN: 1052-5149; 1557-9867
• DOI: 10.1016/j.nic.2021.08.013

Advances in MR and computed tomography (CT) techniques have resulted in greater fidelity in the assessment of treatment response and residual tumor on one hand and the assessment of recurrent head and neck malignancies on the other hand. The advances in MR techniques primarily are related to diffusion and perfusion imaging which rely on the intrinsic architecture of the tissues and organ systems. The techniques exploit the density of the cellular architecture; and the vascularity of benign and malignant lesions which in turn affect the changes in the passage of contrast through the vascular bed. Dual-energy CT and CT perfusion are the major advances in CT techniques that have found significant applications in the assessment of treatment response and tumor recurrence.