3D CT imaging of oesophageal carcinoma

Thoracic and upper abdominal computed tomography (CT), in conjunction with endoscopic ultrasound, is an integral part of staging oesophageal carcinoma. When performed with spiral CT, an additional advantage is three-dimensional (3D) image reconstruction of the oesophagus and gastrooesophageal junction. The advantages of 3D CT of oesophageal tumors are: 1) it provides a readily recognizable image depicting tumor length and location with respect to other mediastinal air-filled structures and the gastrooesophageal junction; 2) it provides an image comparable to a barium swallow without the inherent risks of barium aspiration; 3) it provides an estimation of tumor volume reduction following chemotherapy; and 4) CT virtual endoscopy is possible.