Myocardial T1 mapping using SMART1Map: initial in vivo experience

Table 1 Mean measured T1 values in normal myocardium.

Mean T1 values (N=12)	T1 (ms)
MOLLI no LL correction	792.1
MOLLI with LL correction and estimated TI times	1018.2
MOLLI with LL correction and measured TI times	1012.8
SMART1Map with estimated TI times	1279.1
SMART1Map with measured (true) TI times	1193.0

Three series for each sequence in each of 4 volunteers were acquired. Values measured using a version of MOLLI with no correction, with the common Look-Locker correction and with the Look-Locker correction and correcting TI times based on pulse sequence-measured RR durations are listed. Values measured using SMART1Map with estimated TI times and the corrected TI times are also listed. The T1 values from SMART1Map with measured TI times closely match unenhanced myocardium T1's measured with single-point methods in the literature.

ISSN: 1532-429X