Rising evidence suggests that cardiac substructures are highly radiosensitive. However, they are not routinely considered in treatment planning as they are not readily visualized on treatment planning CTs (TPCTs). This work integrated the soft tissue contrast provided by low‐field MRIs acquired on an MR‐linac via image registration to further enable cardiac substructure sparing on TPCTs.

中文翻译：

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将敏感的心脏亚结构保留纳入放射治疗计划

越来越多的证据表明，心脏亚结构对放射线高度敏感。然而，由于在治疗计划 CT (TPCT) 上不易看到它们，因此在治疗计划中通常不会考虑它们。这项工作整合了通过图像配准在 MR-linac 上获得的低场 MRI 提供的软组织对比度，以进一步实现 TPCT 上的心脏亚结构保留。