Table 5.

Summary of the factors that may allow centres to use DIR more in clinical practice

Answer choices	Responses
Clear guidelines on how to use registration for different applications	67%	34
Better tools for commissioning registration software	67%	34
Better tools for QA of registration results	67%	34
Training courses	55%	28
Better registration software and smoother workflows	6%	3
Improved accuracy of DIR algorithms	4%	2
Ability to quantify uncertainty	2%	1
External funding	2%	1
Evidence of efficacy	2%	1
Written info on how the software works, its strengths, weaknesses and potential pitfalls	2%	1
None	2%	1

DIR, deformable image registration; QA, quality assurance.

The percentages are relative to the 51 centres who responded to the survey.