Modality reclassification
Change the Modality tag when a study was acquired under the wrong modality code.
Problem
A DICOM study was tagged with the wrong modality — e.g. a CT scan is labeled “MR” due to a modality worklist mismatch. The Modality tag (0008,0060) controls which hanging protocol the PACS applies, which toolset the viewer loads, and how the study is indexed in search. A wrong modality means radiologists see the wrong display layout and measurement tools.
Steps
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Open the file (⌘O) and switch to Edit mode (⌘3).
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Filter for Modality (0008,0060) and double-click to edit.
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Enter the correct modality code — e.g.
CT,MR,CR,DX,US,NM,PT,XA,RF,SC. The CS VR accepts any short string. -
Click Save change.
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If you also need to adjust series-level descriptors to match the new modality (e.g. Body Part Examined, Series Description), edit those tags as well following the workflows in the adjacent use cases.
Expected Result
- Modality displays the corrected code with gold highlighting.
- The PACS now applies the correct hanging protocol and toolset for the actual modality.
- The change is tracked by the dirty counter and is undoable.