Reorient (axial/sagittal/coronal flip)
Flip or reorient slices between axial, sagittal, and coronal planes.
Problem
A DICOM image is flipped (mirrored) or in the wrong anatomical orientation — e.g. the patient’s left appears on the right side of the screen because the scanner used a reversed coordinate system. You need to apply a flip transform to correct the orientation and produce a properly oriented derived image.
Steps
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Open the file (⌘O) and record the original SOP Instance UID (0008,0018) in Edit mode.
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Open Pixel Operations — ⌘K → “Pixel operations…”.
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Select Flip from the pixel operation picker.
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Click Apply transform — the flipped image is derived and staged in memory.
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Verify — filter for SOP Instance UID (0008,0018). The derived copy has a new UID starting with
2.25.(detached from the original).
Expected Result
- A derived copy is produced with flipped pixel orientation.
- SOP Instance UID is regenerated — a new
2.25.*UUID-derived identifier distinct from the original. - The original file’s UID is unchanged.
- The flip is a simple horizontal/vertical mirror — pixel values and dimensions are preserved.