The number of ‘CTCA-capable’ scanners operated by the NHS across the UK as a whole and each devolved nation in 2016 compared with the estimated CTCA provision required to implement the updated NICE guidelines
| Geographical location | Population (millions) | CTCA-capable scanners | CTCA provision required versus CTCA-capable scanners | |
| Number of scanners (per million population) | CTCAs required | CTCAs required per CTCA-capable scanner | ||
| UK | 64.1 | 304 (5) | 335 666 | 1104 |
| England | 54.1 | 258 (5) | 282 943 | 1097 |
| Scotland | 5.3 | 26 (5) | 27 466 | 1056 |
| Wales | 3 | 9 (3) | 15 585 | 1732 |
| Northern Ireland | 1.8 | 11 (6) | 9665 | 879 |
CTCA, CT coronary angiography; NICE, National Institute for Health and Care Excellence; NHS, National Health Service.