(A) Treatment decisions on necessity of revascularisation | ||||
---|---|---|---|---|
SPECT and CA | Percentage agreement | |||
Revascularisation | No revascularisation | |||
Matched hybrid SPECT/CCTA (N=40) | ||||
Hybrid SPECT/CCTA | Revascularisation | 36 | 2 | |
No revascularisation | 0 | 2 | 95 | |
Unmatched hybrid SPECT/CCTA (N=44) | ||||
Hybrid SPECT/CCTA | Revascularisation | 14 | 3 | |
No revascularisation | 4 | 23 | 84 | |
Normal hybrid SPECT/CCTA (N=23) | ||||
Hybrid SPECT/CCTA | Revascularisation | 0 | 0 | |
No revascularisation | 0 | 23 | 100 | |
(B) Treatment decisions on type of revascularisation | ||||
SPECT and CA | Percentage agreement | |||
PCI | CABG | |||
Matched hybrid SPECT/CCTA (N=36) | ||||
Hybrid SPECT/CCTA | PCI | 11 | 8 | |
CABG | 2 | 15 | 72 | |
Unmatched hybrid SPECT/CCTA (N=14) | ||||
Hybrid SPECT/CCTA | PCI | 7 | 2 | |
CABG | 1 | 4 | 79 | |
Normal hybrid SPECT/CCTA (N=0) | ||||
Hybrid SPECT/CCTA | PCI | 0 | 0 | |
CABG | 0 | 0 | NA |
Agreement tables for panel decisions based on hybrid SPECT/CCTA versus SPECT and CA. In patients with matched, unmatched and normal findings by hybrid SPECT/CCTA.
(A) Decisions on the necessity of revascularisation (no revascularisation versus PCI or CABG). Percentage agreement in the matched, unmatched and normal group was 95% (95% CI 83 to 99), 84% (95% CI 71 to 92) and 100% (95% CI 86 to 100), respectively. (B) Decisions on the type of revascularisation (PCI versus CABG) in the group of patients indicated for revascularisation based on hybrid SPECT/CCTA. Percentage agreement in the matched, unmatched and normal group was 72% (95% CI 56 to 84), 79.0% (95% CI 52 to 92) and not available (NA), respectively.
CA, coronary angiogram; CABG, coronary artery bypass grafting; CCTA, CT coronary angiography; PCI, percutaneous coronary intervention; SPECT, single photon emission CT.