Table 2

Cardiac test usage within 8 months of attendance at the rapid access chest pain clinic, pre-FFRCT/post-FFRCT adoption

InvestigationPre-FFRCT (n=259)Post-FFRCT (n=284)P value*
Patients, n (%)Patients, n (%)
Invasive angiogram only66 (25.5)39 (13.7)<0.001†
Invasive angiogram with pressure wire only3 (1.2)0 (0.0)0.108
CTCA only131 (50.6)136 (47.9)0.548
CTCA plus FFRCT 0 (0.0)82 (28.9)<0.001†
Rest NMPS27 (10.4)12 (4.2)0.007
Stress NMPS59 (22.8)22 (7.7)<0.001†
Stress MRI3 (1.2)8 (2.8)0.227
Stress echo13 (5.0)9 (3.2)0.286
  • *P values calculated using Fisher’s exact test.

  • †Significant with Bonferroni correction applied to the group of eight observations (p<0.00625).

  • CTCA, CT coronary angiography; FFRCT, CT fractional flow reserve ; NMPS, nuclear myocardial perfusion scan.