We measured longitudinal rotating frame relaxation time
(T
1
)
and late gadolinium enhanced (LGE) images in chronic
infarct in mouse model. Infarct was induced by ligation
of left anterior descending (LAD). Linear association (R
2
=0.94,
p < 0.001) between the infarct volumes based on T
1
-maps
and LGE images were found. We conclude that chronic
infarct size can be determined by T
1
-mapping
in mouse chronic infarct model.