Merge pacs (picture archiving communication system) is designed and marketed for soft copy reading, communication and storage of studies produced by digital modalities, including digital mammography.A customer reported (case (b)(4)) the cut lines are not showing correctly on a study in pacs.The cut lines would go from being vertical and then shift almost horizontal.The display is very obvious to the user and shows contradictory views which would cause the user to question what is happening.The images came from siemens (b)(4) scanner.An investigation found that siemens changed the resolution of the values of some dicom attributes causing an edge case which merge pacs did not handle appropriately.It was determined to be a potential safety issue for the patient in the event there was a misdiagnosis from viewing the incorrect measurements of a patient's images.
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