1. You need to print your poster in good quality if you want it to be in the winning category.
2. Usually posters have to be printed in photo print with mat finish so that the images are seen clearly. The images should not pixalate when they are printed.
3. Usually rather than a single case, a series of cases with various patterns of appearance will fetch more marks while judging.
4. If you are including conventional images it has to be seen clearly when it is printed in the flex material.
5. If its a single case you have to try to include all imaging modalities wherever possible, including gross specimen, histopathology images also you need to add in your poster to show that it was a completely worked up case.
6. The poster should speak for itself through images. Very less theory content must be there.
7. Images have to be labelled correctly.
8. References should be recent ones.
9. If possible you have to mention about the treatment of choice or role of intervention radiology in your case
10. Finally the design, background, font size, image clarity, college Logo, IRIA/organizer logo, name of the conference will fetch more marks.
Above are posters which won prizes at a state conference