Application of FDG PET-CT in chemoradiotherapy for esophageal cancer

Esophageal cancer is one of the most common gastrointestinal cancers, and chemoradiotherapy is an important part of the multidisciplinary treatment for this disease. In recent years, 18Fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET-CT) is widely used in esophageal cancer for delineation of gross tumor volume, local boost irradiation in the late stage of radiotherapy, and assessment of the pathologic remission rate after neoadjuvant chemoradiotherapy, response to definitive chemoradiotherapy, and prognosis. In this article, we review the application of FDG PET-CT in the chemoradiotherapy for esophageal cancer. Key words: Tomography, positron, emission; Fluorine-deoxyglucose; Esophageal neoplasms/chemoradiotherapy