Table 3

Reasons for FFRCT data rejection and factors that impact analysis

Reason for data rejection
Image qualityMotion artefacts
Clipped structures
Image noise
Inappropriate submissionVessels with stent or patient with coronary artery bypass graft
Cardiac hardware present
Factors associated with favourable impact on FFR CT analysis
Patient preparationPre-treatment with glyceryl trinitrate for coronary vasodilatation
Administration of beta blockers to optimise heart rate control to reduce motion artefact
Image acquisitionAorta contrast opacification (timing of contrast administration)
High temporal resolution (use of dual source CT scanners)
Image reconstructionSmaller field of view
Small section thickness