RadiAnt DICOM Viewer - Discussion Forum
How slice location is generated

Nov 24, 2019 06:13 PM
by DrG
In some DICOM files, slice position is not mentioned. However a calculated value is displayed in Radiant.
How is this calculated?
Nov 27, 2019 09:07 AM
by RadiAnt
If the location tag is not available in the DICOM file, the image position tag is used:
(0020,0032) DS -108.300003\-97.400002\-117.559998 # 3, 34 Image Position (Patient)

RadiAnt calculates the COI (center of image) coordinates (in mm) and takes X, Y or Z, depending on which axis is closest to the normal vector of the image plane.
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