TABLE 5.

Accuracy of 16-slice and 64-slice multidetector computed tomography (MDCT) for the assessment of bypass graft stenosis following coronary artery bypass grafting compared with catheter-based coronary angiography (CCA)

Reference	Patients, n	Mean age, years	Men, %	Assessability, %	Sensitivity, %	Specificity, %	NPV, %	PPV, %	Diagnostic accuracy, %	Positive likelihood ratio	Negative likelihood ratio
16-slice MDCT
Martuscelli et al (64)	96	62	83	88	97	100	99	100	99	Undefined	0.0
Chiurlia et al (65)	52	63	87	99	99	100	95	100	99	Undefined	0.0
Moore et al (70)*†	50	63	78	97	100	99	100	98	99	100	0.0
Anders et al (68)	32	67	91	100	95	89	96	86	91	8.6	0.1
Total	230			94	98	98	99	98	98	25.0	0.0
64-slice MDCT
Meyer et al (71)	138	68	88	98	97	97	99	93	97	32.3	0.0
Onuma et al (60)	54	65	81	95	100	98	100	94	99	50	0.0
Malagutti et al (73)	52	65	87	100	100	98	100	98	99	50	0.0
Jabara et al (61)	50	64	90	99	100	100	100	100	100	Undefined	0.0
Ropers et al (62)	50	67	76	100	100	94	100	76	95	16.7	0.0
Feuchtner et al (63)	40	62	80	100	85	95	97	80	93	17.0	0.2
Pache et al (72)	31	68	84	97	98	89	98	90	94	8.9	0.0
Total	415			98	98	97	99	92	97	32.3	0.0

Bypass graft stenosis was defined as >50% luminal narrowing of vessel. All studies assessed bypass graft stenosis with quantitative CCA.

^*Blinding was not specified;

^†Beta-blockers were not administered for heart rate reduction. NPV Negative predictive value; PPV Positive predictive value