The American College of Radiology (ACR):

The 34,000 members of the American College of Radiology (ACR) include radiologists, radiation oncologists, medical physicists, interventional radiologists and nuclear medicine physicians. For over three quarters of a century, the ACR has devoted its resources to making imaging safe, effective and accessible to those who need it.

The mission of the ACR is to serve patients and society by maximizing the value of radiology, radiation oncology, interventional radiology, nuclear medicine and medical physics by advancing the science of radiology, improving the quality of patient care, positively influencing the socio-economics of the practice of radiology, providing continuing education for radiology and allied health professions and conducting research for the future of radiology.

The American Institute for Radiologic Pathology (AIRP):

The mission of the American Institute for Radiologic Pathology (AIRP), sponsored by the ACR, is to deliver unequalled training to radiology residents, fellows, and practicing radiologists from around the world. The four-week Radiologic Pathology Correlation Course is designed to aid residents and fellows in their endeavors to achieve excellence in the technologically advancing specialty of radiology, by employing radiologic-pathologic correlation in the identification of disease. The course fulfills training requirements for more than 310 radiology residency programs. The Radiologic Pathology Correlation Course is a comprehensive review of radiologic imaging with pathologic correlation providing more than 150 hours of didactic instruction and case seminars.