CT Imaging of Coronary Stents: Past, Present, and Future

Table 1

Summary of studies on EBCT imaging for assessing coronary stent patency.

Author/year	Patients (n)	Stents (n)	Nonevaluable (%)	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Schmermund et al. 1996 [15]	22	na	9	100	100	100	100
Pump et al. 1998 [17]	177	285	7.2	82.3	97.6	77.8	98.2
Pump et al. 2000 [18]	202	321	4	78	98	82	97
Knollmann et al. 2004 [16]	117	152*	9.3	48	90.1	67.7	80.5
Zhou et al. 2005 [19]	25	35	8	85	92.9	75	96.5
Total/mean	543	793	7.5	78.7	95.7	80.5	94.4

na: not available; PPV: positive predictive value; NPV: negative predictive value; *stented segments.