Table 2

Subgroup analysis of different treatment techniques comparing sensitivity and specificity of time-of-flight magnetic resonance angiography (TOF-MRA) and contrast-enhanced (CE)-MRA

TreatmentTOF-MRACE-MRA
Sensitivity
(95% CI)
Specificity
(95% CI)
Positive LR
(95% CI)
Negative LR
(95% CI)
Sensitivity
(95% CI)
Specificity
(95% CI)
Positive LR
(95% CI)
Negative LR
(95% CI)
Coiling0.86
(0.83 to 0.89)
0.90
(0.87 to 0.92)
7.92
(4.91 to 12.79)
0.17
(0.11 to 0.27)
0.87
(0.81 to 0.92)
0.92
(0.88 to 0.95)
8.76
(4.48 to 17.15)
0.19
(0.12 to 0.31)
Stent-assisted coiling + flow diversion0.86
(0.77 to 0.92)
0.95
(0.87 to 0.99)
6.10
(1.93 to 19.23)
0.24
(0.09 to 0.64)
0.90
(0.80 to 0.96)
0.92
(0.82 to 0.98)
5.60
(2.54 to 12.35)
0.14
(0.03 to 0.72)