person getting a CT colonography exam

ACR Acquires and Expands CT Colonography Locator Tool

Facilities that offer CTC are encouraged to join the My CT Colonography center locator, a tool that helps patients find a CTC screening center. Learn more »

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Continue Your Journey to Radiologic Excellence.

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Fight Confusion with Mammography CME Toolkit

Free resource helps radiologists help referring doctors make good breast cancer screening recommendations - and earn CME! Explore the toolkit »

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ACR® Virtual Career Fair

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gold seal

The ACR has accredited more than 38,000 facilities in 10 imaging modalities. We offer accreditation programs in CT, MRI, Breast MRI, Nuclear Medicine and PET, Ultrasound, Breast Ultrasound, and Stereotactic Breast Biopsy, as mandated under the Medicare Improvements for Patients and Providers Act, as well as for modalities mandated under the Mammography Quality Standards Act. Our streamlined application process has cut approval time in half, with accreditation evaluation typically completed within 60 days of image submission.

ACR Case In Point

Test your clinical knowledge with the daily Case in Point program, which gives you the opportunity each weekday to work through a subspecialty case.


A 55-year-old man with a medical history of chronic obstructive pulmonary disease and hypertension presents to the emergency department for shortness of breath. Chest radiography and later chest CT reveals a right perihilar mass, which is diagnosed as non–small-cell lung cancer by biopsy. The patient is scheduled for a quantitative ventilation-perfusion scan to assess lung viability for a planned pulmonary resection.

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