Table 4.

Summary of studies on 64-slice DSCT and 320-slice CT for assessing coronary stents.

Author/year	Patients (n)	Stents (n)	Scanner type	Non evaluable (%)	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Oncel et al. 2008 [60]	35	48	64 DSCT	15	100	94	89	100
Pugliese et al. 2008 [88]	100	178	64 DSCT	5	94	92	77	98
Pflederer et al. 2009 [89]	112	150	64 DSCT	10	84	95	73	97
Zhao et al. 2011 [90]	30 (gating)	56	64 DSCT	12.5	94	87	77	97
	30 (triggering)	59	64 DSCT	13.6	100	84	68	100
Veselka et al. 2011 [91]	34	34	64 DSCT	0	100	74	18	100
Zhang et al. 2012 [92]	50	115	64 DSCT	0	69.2	91.2	50	95.9
De Graaf et al. 2010 [93]	53	89	320 MSCT	8	92	83	46	98
Total/mean	444	729		8	94.9	87.0	62.3	98.6

PPV: positive predictive value; NPV: negative predictive value.