Table 5. Diagnostic Accuracy of Silent MRA and TOF MRA for Evaluating the Status of Aneurysm Occlusion in Subgroups.

Type of Stent	Type of MRA	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Neuroform (n = 71)	Silent	96.4	100	100	97.7
	TOF	14.3	100	100	64.2
	p value	< 0.001	NA
Enterprise (n = 17)	Silent	100	100	100	100
	TOF	50	100	100	86.7
	p value	0.157	NA
LVIS Jr (n = 9)	Silent	100	100	100	100
	TOF	20	100	100	50
	p value	0.046	NA
Solitaire AB (n = 4)	Silent	100	100	100	100
	TOF	50	100	100	66.7
	p value	0.317	NA

MRA = MR angiography, NA = not applied, NPV = negative predictive value, PPV = positive predictive value, Silent MRA = MRA using the Silent Scan algorithm, TOF = time-of-flight