Computed Tomographic Colonography: Image Display Methods

High reader performance (high sensitivity levels with low false-positive rates) and time efficiency are the two main goals sought during interpretation of computed tomographic colonography (CTC) examinations. As CTC continues to grow as a valid screening test for colorectal neoplasia, one concern is that, as currently proposed by most authorities in the field, interpretation of CTC examinations can be perceived as time-consuming and potentially impractical for some radiologists. Thus, it is mandatory that radiologists (and others interpreting the examinations) familiarize themselves with the various paradigms available to display the CT data. In the past decade, vendors and independent researchers have devoted time, effort, and resources to develop image display tools that ease the interpretation of CTC studies.