3902
Results have shown that features captured in-situ were correlated to defects detected by micro CT , revealing the potential of using optical images captured during printing as an indicator to the extent of defects present in selective laser melted parts .
 in-situ, correlated, defects, CT, optical, images, as, defects, selective laser melted
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 in-situ, correlated, defects, CT, optical, images, as, defects, selective laser melted