Skip to main content
An official website of the United States government

An Investigational Scan (HP 129Xe MRI) for Evaluating Treatment Side Effects in Patients Undergoing Radiation Therapy for Lung Cancer

Trial Status: temporarily closed to accrual

This phase II trial evaluates whether a new imaging technique called hyperpolarized xenon 129 (HP 129Xe) magnetic resonance imaging (MRI) is useful for identifying and predicting the development of treatment side effects in lung cancer patients undergoing radiation therapy. Patients undergoing radiation therapy for lung cancer often develop a side effect called pneumonitis, which is inflammation of the lungs. HP 129Xe is a gaseous contrast agent that, when inhaled, is distributed throughout the lungs and can be used with MRI to visualize lung structures. MRI is a procedure in which radio waves and a powerful magnet linked to a computer are used to create detailed pictures of areas inside the body. HP 129Xe MRI may be useful for identifying or predicting the development of radiation-related side effects in lung cancer patients, and may also help physicians develop radiation treatment plans that spare healthy lung tissue.