Posters are often required for presentations at academic meetings. Their large size requires production at high resolutions. An appealing poster might also include charts, illustration, and graphics.
Powerpoint presentations are useful for presenting information and for teaching. They are used at all levels of the health service in these roles. They can be made more effective by adding illustrations, video, audio, or simply through restructuring.
Procedures can last hours producing an equal amount of footage. To be useful in promotion, presentation, and teaching it is necessary to edit this down in to a coherent narrative. This could include adding annotations, voice overs or splicing illustrations.