Fig. 3
Adapted from Kim et al. [6]
Images in 5 patients (n = 3 with myocardial infarction (MI), n = 2 control patients without MI) in whom the diagnosis of MI was ambiguous on conventional bright blood LGE (IR-GRE). In patients 1 and 2, there is possibly anteroseptal wall hyperenhancement on IR-GRE. FIDDLE shows unequivocal LGE in patient 5, but also demonstrates no LGE in patient 6, who is a normal control. Similarly, in patients 3 and 4, there are ambiguous regions of LGE on the IR-GRE images involving the lateral wall. FIDDLE identifies that patient 3 has lateral wall infarct, while patient 4 is a normal control. In patient 5, FIDDLE demonstrates not only a subendocardial infarct in the anterior wall but also extension into the inferoapical wall. IRA: infarct-related artery; IR-GRE: inversion recovery gradient echo; LAD: left anterior descending; LCx: left circumflex; MI: myocardial infarction; RCA: right coronary artery.