Modified look-locker inversion recovery T1 mapping indices: assessment of accuracy and reproducibility between magnetic resonance scanners

Table 4 MOLLI T1 and partition coefficient accuracy and reproducibility across field strengths and protocols

	Field strength			Protocol
	1.5T	3T	p-value	17HB	11HB	p-value
Accuracy (% error)
T1 accuracy	6.3 ± 0.3	10.8 ± 0.2	<0.0001	8.3 ± 0.3	8.8 ± 0.3	0.18
Partition coefficient accuracy	8.8 ± 0.6	8.0 ± 0.5	0.11	8.3 ± 0.6	8.5 ± 0.6	0.57
Reproducibility (% mean difference)
T1 reproducibility	5.3 ± 0.3	3.9 ± 0.2	<0.0001	4.5 ± 0.2	4.7 ± 0.2	0.43
Partition coefficient reproducibility	3.8 ± 0.3	2.8 ± 0.2	0.02	2.7 ± 0.3	4.0 ± 0.3	0.003

Note: The accuracy and reproducibility of MOLLI on field strength and protocol are reported. Accuracy is reported as the percentage difference between MOLLI and IR-SE. Scan/rescan reproducibility is reported as the relative percent mean difference between two MOLLI scans. Data is presented as least square means ± standard error. Smaller numbers represent better accuracy or reproducibility.

ISSN: 1532-429X