Calcium scoring in merge unity pacs is a non-invasive way of obtaining information about the presence, location, and extent of calcified plaque on coronary arteries.During development of the next release of unity (version 11.0), the development team found that the current algorithm overestimates the calcium score for sites that obtain calcium scoring scans at slice thickness of <3mm and a slice interval of 0.It was presumed that the score for sites with a slice thickness of >3mm and a thickness of 0 would be underestimated, however performing coronary calcium scoring cts using a slice thickness of >3mm is unlikely.The error in the calculation minimally impacts evidence and mild evidence of coronary artery disease, and was deemed unlikely to cause adverse health consequences.There were no reported patients who were affected by the error.Unity 11.0.2 was released on 11/25/2015 to account for slices not equal to 3mm and to display a warning whenever slice thickness is not 3mm.
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