Table 5

Sensitivity for aneurysm detection per patient according to maximum aneurysmal size

Modality Size of subjects' largest aneurysm Sensitivity) (95% CI) (TP/TP+FN)
CTA<3 mm0.25 (0.03–0.65) (2/8)
3–5 mm0.82 ( 0.57–0.96) (14/17)
>5.1–10 mm0.89 (0.52–1.00) (8/9)
>10 mm1.00 (0.72–1.00) (11/11)
MRA<3 mm0.125 (0.00–0.53) (1/8)
3–5 mm0.71 (0.44–0.90) (12/17)
5.1–10 mm0.89 (0.52–1.00) (8/9)
>10 mm1.00 (0.72–1.00) (11/11)
TCD* <3 mm0.25 (0.03–0.65) (2/8)
3–5 mm0.59 (0.33–0.82) (10/17)
5.1–10 mm0.56 (0.21–0.86) (5/9)
>10 mm0.82 (0.48–0.98) (9/11)
CTA+TCD<3 mm0.17 (0.00–0.64) (1/6)
(20/114 “uncertain” and3–5 mm0.92 (0.62–1.00) (11/12)
10/20 had aneurysm on IADSA)5.1–10 mm1.00 (0.59–1.00) (7/7)
>10 mm1.00 (0.69–1.00) (10/10)
MRA+TCD<3 mm0.14 (0.00–0.58) (1/7)
(16/114 “uncertain” and3–5 mm0.75 (0.43–0.95) (9/12)
8/16 had aneurysm on IADSA)5.1–10 mm1.00 (0.63–1.00) (8/8)
>10 mm1.00 (0.69–1.00) (10/10)
CTA+MRA<3 mm0.14 (0.00–0.58) (1/7)
(14/114 “uncertain” and3–5 mm0.85 (0.55–0.98) (11/13)
6/14 had aneurysm on IADSA)5.1–10 mm1.00 (0.63–1.00) (8/8)
>10 mm1.00 (0.72–1.0) (11/11)