Table 4. Patient- and Vessel-Based Diagnostic Performance of 1.5T and 3T CMR Perfusion Imaging for Detecting Significant Coronary Stenoses Compared with ICA.

	All Patients		Patients without MI
	1.5T CMR	3T CMR	1.5T CMR	3T CMR
Per patient
TP (n)	62	55	34	34
FP (n)	22	22	15	16
TN (n)	39	55	39	55
FN (n)	12	14	8	14
Sensitivity (%)	84 (73–91)	80 (68–88)	81 (66–91)	71 (56–83)
Specificity (%)	64 (51–76)	71 (60–81)	72 (58–83)	77 (66–87)
PPV (%)	74 (67–80)	71 (63–78)	69 (59–78)	68 (57–77)
NPV (%)	76 (65–85)	80 (71–86)	83 (68–84)	80 (71–86)
Accuracy (%)	75 (67–82)	75 (68–82)	76 (72–90)	75 (66–82)
Kappa statistic	0.49 (0.34–0.64)	0.51 (0.37–0.65)	0.52 (0.35–0.69)	0.48 (0.32–0.64)
AUC	0.75 ± 0.04 (0.67–0.82)	0.76 ± 0.04 (0.69–0.83)	0.77 ± 0.04 (0.67–0.85)	0.74 ± 0.04 (0.65–0.82)
P	0.74		0.68
Per vessel territory
TP (n)	90	82	29	47
FP (n)	46	46	22	31
TN (n)	227	283	200	258
FN (n)	42	27	37	21
Sensitivity (%)	68 (64–73)	75 (66–83)	44 (38–50)	69 (57–80)
Specificity (%)	83 (80–87)	86 (82–90)	90 (85–92)	89 (85–93)
PPV (%)	66 (61–71)	64 (57–70)	57 (45–68)	60 (51–69)
NPV (%)	84 (81–88)	91 (88–94)	84 (81–87)	93 (89–95)
Accuracy (%)	78 (74–82)	83 (80–87)	80 (74–84)	85 (81–89)
Kappa statistic	0.51 (0.42–0.60)	0.58 (0.49–0.67)	0.36 (0.21–0.50)	0.55 (0.44–0.67)
AUC	0.76 ± 0.02 (0.71–0.80)	0.81 ± 0.02 (0.77–0.84)	0.67 ± 0.03 (0.61–0.72)	0.79 ± 0.03 (0.75–0.83)
P	0.22		0.006

Values for sensitivity, specificity, PPV, NPV, accuracy, kappa statistic, and AUC presented with 95% CIs. AUC expressed as mean ± standard error. AUC = area under receiver operating characteristic curve, CIs = confidence intervals, FN = false negative, FP = false positive, NPV = negative predictive value, PPV = positive predictive value, TN = true negative, TP = true positive