Estimates of current CTCA provision, provision required for full implementation of updated NICE guidelines and increase required within the 10 ‘highest-volume’ health regions of the UK
| Geographical location | Population (100 000) | Provision required | Current provision | Increase required | |
| CTCAs per 100 000 population per year | CTCAs per 100 000 population per year | CTCAs per 100 000 population per year | Increase as a multiple | ||
| North West London | 20 | 545 (n=10 900) | 257 (n=5130) | 288 (n=5770) | 2.1 |
| Devon | 12 | 545 (n=6540) | 221 (n=2655) | 324 (n=3885) | 2.5 |
| Southern | 3.7 | 545 (n=2017) | 188 (n=686) | 357 (n=1331) | 2.9 |
| Cambridgeshire and Peterborough | 9 | 545 (n=4905) | 178 (n=1600) | 367 (n=3305) | 3.1 |
| NHS borders | 1.1 | 545 (n=600) | 163 (n=180) | 382 (n=420) | 3.3 |
| Sussex and East Surrey | 18 | 545 (n=9810) | 156 (n=2810) | 389 (n=7000) | 3.5 |
| Dorset | 8 | 545 (n=4360) | 149 (n=1190) | 396 (n=3170) | 3.7 |
| Western | 2.9 | 545 (n=1581) | 135 (n=398) | 410 (n=1183) | 4.0 |
| Northumberland, Tyne and Wear | 14 | 545 (n=7630) | 129 (n=1800) | 416 (n=5830) | 4.2 |
| South West London | 15 | 545 (n=8175) | 120 (n=1800) | 425 (n=6375) | 4.5 |
CTCA, CT coronary angiography; NICE, National Institute for Health and Care Excellence.