TCT Magazine has published a feature on inspection technologies for additive manufacturing, systematically outlining the value of X-ray computed tomography (CT) in AM. The most important characteristics of additively manufactured parts are often hidden internally—defects such as internal porosity, lack of fusion, trapped powder, cracks, and wall thickness deviations cannot be found by surface inspection, and destructive cross-sectioning destroys the part. CT reconstructs a 3D view from multiple 2D X-ray projections, enabling the location, size, and distribution pattern of pores to be determined and their correlation with process parameters to be assessed: too low an energy density leads to lack-of-fusion porosity, while too high an energy density causes an unstable melt pool and keyhole porosity. CT can also analyze feedstock powder quality—internal particle porosity, non-spherical particles, contamination, and abnormal particle size distribution—for troubleshooting batch issues and qualifying feedstock changes. The article stresses that CT should not replace all other inspection methods; scan time, part size, material density, and resolution requirements must be balanced. For LPBF process development, scanning test coupons with CT can verify whether a parameter set is qualified before committing to complex parts. Value for powder buyers: ① CT inspection of feedstock powder (internal porosity/non-spherical particles/contamination/particle size) is becoming a common batch acceptance method for high-end customers, and powder suppliers should proactively provide batch CT/particle size data; ② when customers use CT to troubleshoot batch issues, suppliers with complete powder quality data are more likely to win in qualifying feedstock changes; ③ watch for differentiation opportunities in bundled "powder + inspection report" services.