What are the types of imaging clinical trials?

There are several types of imaging clinical trials:

• Screening imaging clinical trials generally ask questions that will help researchers learn what type of imaging test will best detect disease early, possibly before symptoms of the disease are noticed.
• Diagnostic imaging clinical trials address questions about what type of imaging test will best detect disease when it is suspected or will help monitor known disease or monitor a therapy to evaluate whether it is working.
• Image-guided interventional clinical trials evaluate the role of therapies that are directed by imaging techniques.