Advantages of radiotherapy simulation with 0.35 Tesla MRI for stereotactic ablation of spinal metastases.
PRACTICAL RADIATION ONCOLOGY(2020)
摘要
The hybrid 0.35T magnetic resonance imaging (MRI) and radiation therapy system functions in part as a simulation platform for treatment planning. We have found that the images generated are particularly helpful for planning of stereotactic radiation therapy for spinal metastases. Advantages include the following: (1) Low-field MRI mitigates magnetic susceptibility artifacts caused by spinal hardware. (2) Volumetric pulse sequence provides isotropic images for improved target delineation. (3) Wide-bore MRI in the radiation oncology department allows for easy simulation in treatment position for accurate fusion across imaging modalities. (4) When patients are treated on the MRI and radiation therapy hybrid device, adaptive radiation therapy is available for special situations to avoid mobile organs at risk. (C) 2019 American Society for Radiation Oncology. Published by Elsevier Inc. All rights reserved.
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关键词
Adaptive Radiation Therapy,Image Guided Radiation Therapy,Radiation Toxicity,Spinal Metastases,Stereotactic Ablative Radiotherapy,Stereotactic Body Radiation Therapy,Stereotactic Radiosurgery
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