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• W2127267393 abstract "Nineteen patients (16 men and 3 women, mean age 51 years) with previous anterior myocardial infarction and severe stenosis (≥90%) of the left anterior descending coronary artery were studied by magnetic resonance imaging (MRI) without and with contrast media to verify the capability of MRI in identifying viable myocardium in areas of severe systolic dysfunction. In corresponding left ventricular segments, a comparison was made between regional signal intensities (SI) determined on MRI images before and 4, 8, 12, and 30 minutes after administration of paramagnetic contrast media (gadolinium diethylenetriaminepentaacetic acid, 0.4 mmol/kg intravenously) and metabolic parameters determined by iodine 123 phenylpentadecanoic acid (IPPA) scintigraphy. The SI and the time of maximum postcontrast enhancement were analyzed by dividing the left ventricle into 11 segments. Each segment was classified as normal (group 1, n = 116), hibernating (group 2, n = 50), or necrotic (group 3, n = 43) on the basis of the IPPA washout rate (>30%, 10% to 30%, and <10%, respectively). Regional SI demonstrated significant differences in absolute values at 12 minutes (group 3: 1.62 ± 0.58 vs group 1: 1.32 ± 0.52, p < 0.01, and vs group 2: 1.34 ± 0.48, p < 0.05) and at 30 minutes (group 3: 1.71 ± 0.47 vs group 1: 1.21 ± 0.55, p < 0.01, and vs group 2: 1.49 ± 0.57, p < 0.05) and in temporal distribution. These results suggest that MRI has a potential role in differentiating viable from necrotic myocardium in patients with chronic severe systolic dysfunction." @default.
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• W2127267393 date "1994-09-01" @default.
• W2127267393 modified "2023-10-16" @default.
• W2127267393 title "Identification of viable myocardium in patients with chronic coronary artery disease and left ventricular dysfunction: Role of magnetic resonance imaging" @default.
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• W2127267393 doi "https://doi.org/10.1016/0002-8703(94)90621-1" @default.
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