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Table 2 Comparison of acute MI size and edema-based AAR quantification by the different techniques

From: Quantification of both the area-at-risk and acute myocardial infarct size in ST-segment elevation myocardial infarction using T1-mapping

Reference/ % LV Other Techniques/ % LV P value R2 ICC (95% CI) Bias ± 2SD/ % LV
Acute MI size
MIConv 25.1 ± 14.3 MISynthMagIR 24.9 ± 13.8 0.35 0.99 0.996 (0.992–0.998) 0.2 ± 2.2 (−2.0–2.4)
MISynthPSIR 24.7 ± 13.9 0.060 0.99 0.996 (0.992–0.998) 0.4 ± 2.2 (−1.8–2.6)
MIT1Post2SD 24.9 ± 13.8 0.10 0.99 0.996 (0.991–0.998) 0.3 ± 1.8 (−1.5–2.1)
MIT1PostOtsu 23.0 ± 12.9 0.001* 0.96 0.964 (0.859–0.987) 2.2 ± 6.0 (−3.8–8.2)
T2-mapping
AART2Man 41.5 ± 12.1 AART2Otsu 41.7 ± 12.2 0.38 0.99 0.983 (0.964–0.992) 0.2 ± 2.1 (−1.9–2.3)
AART22SD 42.2 ± 12.1 0.011* 0.99 0.993 (0.980–0.997) 1.0 ± 2.6 (−1.6–3.6)
T1-mapping
AART1Man 41.0 ± 12.0 AART1Otsu 41.6 ± 11.9 0.17 0.99 0.995 (0.990–0.998) −0.6 ± 4.2 (−4.2–3.6)
AART12SD 42.1 ± 12.2 0.005* 0.96 0.983 (0.949–0.993) −1.0 ± 3.9 (−4.9–2.9)
T2-mapping versus T1-mapping
AART2Man 41.5 ± 12.1 AART1Man 41.0 ± 12.0 0.11 0.99 0.989 (0.977–0.995) 0.5 ± 3.4 (−2.9–3.9)
AART2Otsu 41.7 ± 12.2 AART1Otsu 41.6 ± 11.9 0.72 0.97 0.986 (0.969–0.993) −0.1 ± 4.2 (−4.3–4.1)
AART22SD 42.2 ± 12.1 AART12SD 42.1 ± 12.2 0.86 0.97 0.985 (0.967–0.993) 0.1 ± 4.3 (−4.2–4.4)
  1. %LV percentage of the left ventricle, ICC intraclass correlation coefficient, SD standard deviation, MI myocardial infarction, Conv conventional, SynthMagIR synthetic magnitude reconstruction inversion recovery, SynthPSIR synthetic phase sensitive inversion recovery