Table 2. Weighted summary of sensitivity, specificity, and OR for each modality.

Modality		Sensitivity	Specificity	PLR	NLR	DOR		AUC	Threshold Effect
CTA								AUC=0.9880	P=0.867
	Pooled estimates	0.962	0.961	17.64	0.06	393.69
	95%CI	0.93-0.98	0.94-0.98	11.17-27.84	0.03-0.12	155.20-998.67
	P value*	P=0.068	P=0.119	P=0.369	P=0.179	P=0.287
	I2 value	46.90%	39.00%	7.90%	31.20%	18%
MRA								AUC=0.982	P=0.071
	Pooled estimates	0.954	0.971	13.36	0.075	211.47
	95%CI	0.920-0.976	0.955-0.982	2.42-73.95	0.039-0.144	46.36-964.67
	P value*	P=0.327	P=0.000	P=0.000	P=0.203	P=0.001
	I2 value	13.20%	79.30%	95.20%	28.20%	70.40%