Tu1588 Safety and Feasibility of Endoscopic Submucosal Fine Needle Injection of Gold Fiducial Markers for Esophageal Cancer

Neoadjuvant or definitive chemoradiation therapy is used to treat patients with locally advanced esophageal cancer or patients with esophageal cancer who are not suitable candidates for surgery. Image guided radiation therapy (IMRT) allows the delivery of high dose radiation to the target lesion with precision; however, this is dependent upon accurate localization and tracking of the lesion. Respiratory motion results in significant movement of the esophageal tumor, making localization a challenge. In this study we describe a new technique in the placement of gold fiducial markers via endoscopic submucosal fine needle injection (ES-FNI) for patients with esophageal cancer.