Dual-phase MDCT and CCA results and comparisons (n = 107)
| MDCT | CCA | ||
| Coronary artery anatomy | |||
| Coronary dominance | κ = 0.930 | ||
| right/left/co-dominance | 71/12/24 | 71/12/24 | |
| LAD terminating | κ = 0.930 | ||
| Before apex/reaching apex/wrappi ng around apex and supplying inferiorapical segment | 11/42/54 | 11/43/52 | |
| Number of diseased vessel | κ = 0.801 | ||
| Single-vessel disease | 66 | 67 | |
| Two-vessel disease | 29 | 30 | |
| Three-vessel disease | 12 | 10 | |
| IRA/culprit lesion site* | * | ||
| LM | 1 | 1 | |
| LAD: proximal/middle/distal/diagonal | 19/25/3/2 | 19/25/3/2 | |
| LCX: proximal/middle/distal/obtuse marginal | 6/10/8/3 | 6/10/8/3 | |
| RCA: Proximal/middle/distal | 7/16/7 | 7/16/7 | |
| Culprit lesion measurements | |||
| Residual diameter stenosis (%) | 82 (18) | 80 (20.3) | r = 0.85 |
| <40%/40–70%/>70–90%/>90–99%/100% | 8/20/27/23/29 | 8/23/26/23/27 | |
| Plaque length (mm) | 16.1(10.2) | 14.8 (11.1) | r = 0.81 |
| Plaque area (mm2) | 23.8 (7.2) | ||
| Plaque density (HU) | 36.5 (14.2) | ||
| Extent of jeopardised/infarcted segments | 6.2 (2.2) | 6.1 (2.2) | r = 0.95 |
| Extent of infarcted myocardium (%) | 36.7 (32.7) | ||
| Extent of jeopardised myocardium (%) | 63.3 (34.8) | ||
Data are presented as number or mean (SD). Agreement was presented by kappa value (κ). Correlation was presented by correlation coefficient (r).
*IRA/culprit lesion site: see text regarding if MDCT or CCA alone was insufficiency to identify it, how to confirm them by other modalities.
CCA, conventional coronary angiography; DE, delayed enhancement; HU, Hounsfield unit; LAD, left anterior descending coronary artery; LCX, left circumflex; LM, left main coronary artery ; MDCT, multi-detector computed tomography; RCA, right coronary artery.