Table 1.

Sensitivity and specificity of computed tomography carotid angiography based on North American Symptomatic Carotid Endarterectomy Trial criteria

Stenosis (%)	CT type	Carotid arteries (n)	Sensitivity (%)	Specificity (%)	Reference
> 70	Helical/spiral	56	100	100	Link et al12
	Dual source	80	80	91	Biermann et al13
	Dual source	80	100	84
	Axial	44	67	96	Leclerc et al14
	Axial	236	98.3	100	Moll et al15
	Helical/spiral	44	100	100	Randoux et al16
	Helical/spiral	59	65	100	Patel et al17
	Multi-detector	129	90.9	54.9	Bucek et al18
	Multi-detector	268	88.2	92.4	Bartlett et al19
	Helical/spiral	73	75	96	Silvennoin et al20
	Axial	45	90	87	Howard et al21
	Multi-detector	336	95	99	Anzidei et al22
	Not known	180	78	93	Marquering et al23
	Dual source	80	80	100	Tsiflikas et al24
	Dual source	80	91	83
	Axial	48	81.8	100	Gupta et al25
> 60	Axial	96	87	90	Magarelli et al26
Occlusion	Axial	236	100	100	Moll et al15
> 50	Multi-detector	129	95.8	59.6	Bucek et al18
	Multi-detector	268	75	93.8	Bartlett et al19
	Helical/spiral	73	88	82	Silvennoin et al20
	Not known	180	75	98	Marquering et al23
	Axial	48	91.7	72.7	Gupta et al27
	Axial	72	85	83
< 50	Multi-detector	268	95.2	93.2	Bartlett et al19

CT, computed tomography.