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The effect of adaptive versus fixed filters on the Ecc distribution is shown in midlevel short-axis views obtained in a patient with myocardial infarction. Baseline Ecc maps obtained (a) without filters, (b) with a 3-pixel fixed filter, and (c) with a 3-pixel ASF. Different results from adaptive and conventional spatial filters led to different sensitivities in the detection of abnormal segments in patients compared with two-dimensional echocardiographic examination results.
