Table 2

Disease severity for 5076 patients with diagnostic CTCA at each of the nine sites and overall

CentreABCDEFGHIOverall
CAD-RADS 0, n (%)388
(40)		139
(53)		238
(38)		75
(39)		118
(57)		120
(35)		195
(39)		75
(55)		628
(34)		1976
(39)
CAD-RADS 1–2, n (%)360
(37)		67
(25)		232
(36)		58
(31)		60
(29)		147
(43)		174
(35)		37
(27)		775
(42)		1910
(38)
CAD-RADS 3–5, n (%)220
(23)		57
(22)		163
(26)		57
(30)		30
(14)		74
(22)		131
(26)		25
(18)		433
(24)		1190
(23)

  • CAD-RADS allows three distinct groups of patients to be defined: those with normal coronary arteries (CAD-RADS 0), those with atheroma probably not associated with ischaemia (CAD-RADS 1–2) and those with atheroma possibly or probably associated with ischaemia (CAD-RADS 3–5).

  • CAD-RADS, Coronary Artery Disease–Reporting and Data System; CTCA, CT coronary angiography.