ACR releases updated guidelines for mammo phantoms

The American College of Radiology (ACR) on July 18 released an updated frequently asked questions document for its 2016 ACR Digital Mammography QC Manual Resources webpage.

The document's biggest change is guidelines for failing phantom images due to artifacts. Quality control technologists, medical physicists, and ACR phantom reviewers should sign off on the phantom image if there is a clinically significant artifact in a location that could affect interpretation -- even if all fibers, speck groups, and masses pass, according to the ACR.

The change was made because reviewers noted that phantom images submitted for accreditation would occasionally contain artifacts that would not prompt failure because they did not obscure test objects in the old phantom, the college said.

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