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• W2135096906 abstract "To assess the use of dobutamine magnetic resonance imaging (MRI) as a preoperative predictor of myocardial functional recovery after revascularisation, comparing wall motion and radial wall thickening analyses by observer and semi-automated edge detection.25 men with multivessel coronary disease and resting wall motion abnormalities were studied with preoperative rest and stress MRI.Observer analysis for radial wall thickening was compared with a normal range, while wall motion analysis used a standard four point scale. Semi-automated analysis was performed using an edge detection algorithm. Segments displaying either improved or worsened thickening or motion with dobutamine were considered viable. Postoperative rest images were performed 3-6 months after coronary artery bypass grafting (CABG) for comparison.For observer analysis the values for sensitivity and specificity were 50% and 72% for wall motion, with respective values of 50% and 68% for thickening. With semi-automated edge detection the figures for motion were 60% and 73%, with corresponding values of 79% and 58% for thickening. Combining thickening and motion for the semi-automated method to describe any change in segmental function yielded a sensitivity of 71% and specificity of 70%.Dobutamine MRI is a reasonably good predictor of myocardial functional recovery after CABG. The use of semi-automated edge detection analysis improved results." @default.
• W2135096906 created "2016-06-24" @default.
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• W2135096906 date "2000-01-01" @default.
• W2135096906 modified "2023-10-14" @default.
• W2135096906 title "Dobutamine magnetic resonance imaging as a predictor of myocardial functional recovery after revascularisation" @default.
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• W2135096906 doi "https://doi.org/10.1136/heart.83.1.40" @default.
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