Overview

The hypothesis of this study is that an occlusion balloon catheter placed in the stomach via an oral or nasogastric route will be safe and permit tracking of the stomach during radiation therapy.

Eligibility

Inclusion Criteria:

• Scheduled to receive intra-thoracic or abdominal radiation therapy. It is not required that the stomach be in the radiation field.
• At least 18 years of age.
• ECOG performance status ≤ 1
• Ability to understand and willingness to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable).

Exclusion Criteria:

• Prior trauma or surgical intervention that would alter the anatomy of the upper airs (nasogastric route), esophagus or stomach.
• Previous complete or partial surgical resection of the esophagus, stomach, or duodenum.
• Presence of implantable devices (e.g., automatic internal cardiac defibrillator, cardiac or gastric pacemaker).