Demonstration of value of optimizing ECG triggering for cardiovascular magnetic resonance in patients with congenital heart disease

Table 1 Results of sensitivity, specificity and performance

	False positives	False negatives	Specificity (%)	Sensitivity (%)	Performance index (%)
old algorithm (N = 6811)	22 *	63	99.68	99.08	98.75
new algorithm (N = 6802)	0	16	100.00 **	99.76 ***	99.76

Specificity, sensitivity and Performance Index of detection increased using the new ECG-trigger algorithm compared to the old ECG-trigger algorithm.
* 22 false positive trigger points in three of 35 patients.
** p = 0.104 vs. old algorithm.
*** p = 0.043 vs. old algorithm.

ISSN: 1532-429X