Figure 7. Myocardial T1 at rest and during adenosine stress at 1.5-T. (A) T1 values at rest in normal and remote tissue were similar and significantly lower than in ischemic regions. Infarct T1 was the highest of all myocardial tissue, but lower than the reference left ventricular blood pool of patients. During adenosine stress, normal and remote myocardial T1 increased significantly from baseline, while T1 in ischemic and infarcted regions remained relatively unchanged. (B) Relative T1 reactivity (δT1) in the patient's remote myocardium was significantly blunted compared to normal, and completely abolished in ischemic and infarcted regions. All data indicate mean ±1 SD. Adapted from Liu et al. JACC: Cardiovascular Imaging 2016;9:27-36 originally published by Elsevier.³⁵⁾.

SD = standard deviation.

^*p<0.05.