磁共振影像学改变评估肝癌立体定向放疗精度的研究进展

doi:10.3969/j.issn.1006-5725.2024.22.001

Abstract

Abstract:

In the treatment of primary liver cancer and metastatic liver cancer， stereotactic body radiotherapy （SBRT） can be utilized to administer high doses of radiation for achieving ablative therapeutic effects. Given the singular nature of delivering high-dose radiation through SBRT， a higher level of precision is required in radiation therapy. Particularly， liver cancer is susceptible to positioning errors and respiratory motion， necessitating the implementation of respiratory motion management and image guidance techniques. However， existing accuracy verification methods for radiation therapy primarily rely on phantom studies， making it challenging to conduct in?vivo verification during treatment execution. Research has indicated that the liver exhibits corresponding morphological changes in magnetic resonance imaging following exposure to specific doses of radiation therapy， thereby serving as an indicator for assessing treatment accuracy. This article aims to discuss and analyze the principles underlying magnetic resonance imaging alterations after stereotactic body radiotherapy for liver cancer， including their manifestations， timing of appearance， evaluation methodologies for accuracy assessment， clinical challenges encountered during implementation， as well as future directions for development.

Key words: magnetic resonance imaging, stereotactic body radiotherapy, liver cancer, respiratory motion management strategy

CLC Number:

R735.7

Huiling YE,Renming. ZHONG. Progress in assessing the treatment accuracy of liver stereotactic body radiotherapy through post-therapeutic magnetic resonance imaging morphologic alterations[J]. The Journal of Practical Medicine, 2024, 40(22): 3119-3123.

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Progress in assessing the treatment accuracy of liver stereotactic body radiotherapy through post-therapeutic magnetic resonance imaging morphologic alterations

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