Data adapted from the END (economics of noninvasive diagnosis) study49 comparing two strategies for diagnosing coronary artery disease
| Cost parameters | MPI (n=5826) | Catheterisation (n=5423) |
|---|---|---|
| The first column represents myocardial perfusion imaging before cardiac catheterisation. The second column represents patients going directly to cardiac catheterisation without any functional testing. The data for revascularisation and cost are stratified according to pre-test likelihood of coronary artery disease.49 | ||
| Catheterisation, direct cardiac catheterisation; HR, high pre-test likelihood of coronary artery disease; IR, intermediate pre-test likelihood of coronary artery disease; LR, low pre-test likelihood of coronary artery disease; MPI, myocardial perfusion imaging (followed by selective cardiac catheterisation). | ||
| Rate of normal cardiac catheterisation | 33% | 43% |
| Revascularisation | ||
| LR | 14% | 16% |
| IR | 13% | 27% |
| HR | 16% | 30% |
| Cardiac death rate | 2.8% | 3.3% |
| Cost per patient ($US) | ||
| LR | $2000 | $2900 |
| IR | $2400 | $4200 |
| HR | $2800 | $4800 |