@rbumm How to solve this problem? Thanks!
This is a known bug in newer releases of 3D Slicer caused by recent API/dependency updates within the extension’s scripting interface.
Downgrade to Slicer 5.6.2: Community testing shows that reverting to 3D Slicer 5.6.2 resolves the bug, allowing Table 2 to compute and output proper volume values as expected.
or
Check for Extension Updates: Open the Extension Manager in 3D Slicer and ensure LungCTAnalyzer is updated to the latest available patch, as fixes for output parsing are routinely pushed.

