[BUG] Improve DICOMSeries ordering logic (#1068)

imageio · Mar 18, 2024 · 259c545 · 259c545
1 parent 085ce27
commit 259c545
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/imageio/plugins/_dicom.py b/imageio/plugins/_dicom.py
@@ -703,7 +703,12 @@ def _append(self, dcm):
         self._entries.append(dcm)
 
     def _sort(self):
-        self._entries.sort(key=lambda k: k.InstanceNumber)
+        self._entries.sort(
+            key=lambda k: (
+                k.InstanceNumber,
+                getattr(k, "ImagePositionPatient[2]", None),
+            )
+        )
 
     def _finish(self):
         """