This study is a research and development initiative established to explore the use of magnetic resonance imaging (MRI) as a tool for managing organ motion of the liver in cancer patients planning procedures for stereotactic body radiation therapy (SBRT).
There is a potential role to systematically implement MRI to establish appropriate workflow of the implementation for tumor motion management in liver SBRT. Compared to CT, MRI has many significant advantages for radiotherapy planning, including superior tumor and soft-tissue contrast, flexible imaging orientation, freedom from radiation exposure and real-time imaging. MRI solely based liver SBRT will allow for more precise delineation of target volume, less uncertainties in treatment planning, better motion management, and potentially better treatment outcome
Study Type
OBSERVATIONAL
Enrollment
5
Duke University Medical Center
Durham, North Carolina, United States
Measure average motion trajectories
Time frame: During MRI approx 1 hour
Image quality, as measured by image rating
Image quality will be measured on a scale of 1 to 5, 1 being the best.
Time frame: During MRI approx 1 hour
Image quality, as measured by tumor volume
Time frame: During MRI approx 1 hour
Image quality, as measured by tumor-to-live contrast to noise ratio
Time frame: During MRI approx 1 hour
Planning target volume (PTV)
PTV is defined as PTV=internal target volume (ITV) + safety margin (M)
Time frame: During MRI approx 1 hour
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