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一体化PET/MR克服了PET与MRI强磁场相关干扰的难题，实现了2种模态影像的同步采集，在医学影像学领域具有里程碑式的意义。PET/MR检查既需要有放射性药物，又要避免周边环境对PET/MR主磁场均匀性和射频场稳定性的影响。因此，一体化PET/MR场地的选择和布局建设相比单一系统更加复杂，其安装调试结果要求同时满足2种模态显像要求(显像质量及定量准确性)。该文将对一体化PET/MR的机房建设和仪器安装进行阐述和探讨，以供同类项目建设过程中关键性问题的参考。“,”The integrated PET/MR overcomes the problem of interferences between PET and the strong magnetic field of MRI, realizing the simultaneous acquisition of two modalities, which is a milestone in the field of medical imaging. The use of PET/MR requires the radiopharmaceutical as well as avoids interferences to the homogeneity of main magnetic field and stability of radio-frequency field from surrounding environment. Therefore, the site selection and layout design about integrated PET/MR are more complicated than the single mode system, and the results of installation and debugging should satisfy two imaging modalities (imaging quality and quantitative accuracy). In this paper, the room construction, installation and debugging of integrated PET/MR are discussed, which can supply a reference about key issues in the construction of similar projects.