Careful planning of the study and full support of the radiology staff are essential for collection of such data. It important to obtain pilot data to identify potential problems and adequately train personnel. Such pilot data should be compared with data collected automatically from the HIS, RIS, or PACS to establish the reliability of various data sources. When data was collected without using a study form compliance was low. It is important to automate the data collection as much as possible in order to keep the forms simple and as short as possible. This will increase substantially the consistency at which accurate data are captured.