This chapter focuses on the radiological investigations performed in patients with swallowing problems. It outlines the different imaging modalities used when assessing patients with dysphagia to include ultrasound, computed tomography, magnetic resonance imaging, dynamic studies and X-ray, and highlights some of the key structural pathologies seen on different scans. It explores the different applications, techniques, clinical implications, advantages and limitations of these modalities, whilst considering the fact that that imaging itself comes secondary to the clinical evaluation of patients by means of a thorough history and examination. This chapter not only outlines the benefits of radiology in diagnosing conditions that affect the function of swallowing; it also explains how radiology can provide guidance and work up for surgical procedures and allow monitoring of conditions following surgical procedures to help improve swallowing.