调强放疗技术对骨髓的保护作用

Protective action of bone marrow by intensity-modulated radiotherapy

调强放疗（IMRT）技术应用于肿瘤放疗日益受到关注。骨髓对射线极其敏感，骨髓功能成像技术提高了放疗的精确性，IMRT技术可有目的地减少骨髓受量，降低骨髓的受照射体积，从而有助于降低放疗后急性骨髓抑制的发生概率，值得在临床推广应用。

More and more attention tend to the application of intensity modulated radiation therapy （IMRT） treatment of malignant cancer. The accuracy of the radiotherapy is raising because of the increased radiosensitivity of bone marrow. Imaging modality quantified the distributions of bone marrow, which could further reduce the volume to avoid. Bone marrow-sparing intensity-modulated radiotherapy can reduce the pelvic bone marrow irradiation volume, which may reduce the probability of acute bone marrow inhibit. It is worthy of application widely.