The Purpose of RSNA 　The mission of the Radiological Society of North America is to promote and develop the highest standards of radiology and related sciences through education and research. The Society seeks to provide radiologists and allied health scientists with educational programs and materials of the highest quality, and to constantly improve the content and value of these educational activities. The Society seeks to promote research in all aspects of radiology and related sciences, including basic clinical research in the promotion of quality healthcare. The Society seeks to foster closer fellowship among all radiologists and greater cooperation among radiologists and members of other branches of medicine and allied healthcare professionals.   北美放射学会使命 　　北美放射学会的使命是促进和开发放射技术，和相关科学教育和研究。为联盟的健康血痂和放射学家提供教育规划和擦，及改进和完 善这些教育活动。促进放射学和相关科学方面的研究，包括对提高社会的医疗保健水平，在放射学领域提供更多的合作机会。