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Clinical Trial Summary

The researchers plan to investigate two ways of visualizing and planning to account for the respiratory motion which takes place while treating lung tumors with radiation therapy. The researchers will determine if a traditional snapshot (free-breathing) CT or a longer-lasting CT encompassing the breathing cycle better matches a patient's breathing during treatment.


Clinical Trial Description

As part of this study the patient will receive the standard of care treatment of Stereotactic Body Radiation Therapy (SBRT) approach for treatment of lung cancer. The study will compare whether the quick snapshot or longer-last image is more representative of breathing motion. The standard of care way to verify breathing is to use the Cone Beam Computerized Tomography (CBCT) before each treatment. For this study the researchers will use two other standard of care ways to verify breathing motion during treatment only during the first and last radiation treatment sessions. During the other radiation treatment sessions the CBCT alone will be used. These two other methods are FDA approved, but not routinely being used at the Mays Cancer Center. One method is called 4D-CBCT and is conducted immediately prior to treatment. This will create an image taken over a longer time of the patient's lungs which will be compared with the images from the CT Simulation used to plan the radiation. The other way is called Intrafractional CBCT and is imaging that is done at the same time as the radiation treatment delivery. This will show the researchers how the tumor is moving while the radiation treatment is taking place. These two methods require a longer treatment time, approximately 10 minutes during the first and last treatments. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04717804
Study type Interventional
Source The University of Texas Health Science Center at San Antonio
Contact Carol Jenkins, RN, MSN
Phone 210-450-5924
Email jenkinsca@uthscsa.edu
Status Recruiting
Phase N/A
Start date August 17, 2021
Completion date May 2025

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