Regional myocardial microvascular dysfunction in cardiac amyloid light-chain amyloidosis: assessment with 3T cardiovascular magnetic resonance

Table 6 ROC analysis of first-pass perfusion for detecting microvascular dysfunction between AL-CA patients with impaired systolic function and normal controls

	Cutoff	AUC	Sensitivity (%) (95 % CI)	Specificity (%) (95 % CI)
Basal segment
Upslope	4.1	0.969	92 (83–98)	93 (88–97)
TTM	21.9	0.932	97 (90–100)	76 (68–83)
MaxSI	42	0.852	79 (67–88)	85 (78–90)
Mid-ventricular segment
Upslope	4	0.941	89 (79–96)	90 (84–94)
TTM	21.68	0.941	98 (92–100)	77 (69–83)
MaxSI	36	0.772	61 (48–72)	94 (89–97)
Apical segment
Upslope	4.57	0.906	77(62–88)	94 (87–98)
TTM	23	0.886	95 (85–99)	74 (64–82)
MaxSI	43	0.638	52 (37–68)	77 (68–85)

Notes: AUC = area under the ROC curve. The abbreviations are the same as in Tables 1 and 2

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