(range 81-97%), with a specificity of 66% (range 43-83%) (96-98). Resting echocardiography for the diagnosis of ACI was evaluated in two studies of 228 patients, whose overall quality of evidence was rated as C (likely to have significant bias). The sensitivity was 70% (range 43-99%) and specificity was 87% (range 72-94%) (5). Although echocardiography in the ED shows initial promise, there are no data demonstrating that it can effectively triage patients in large clinical settings. The results of the Systematic Review's final ratings of the quality of evidence evaluating this technology and of its ED diagnostic performance and clinical impact are shown in Table 12.
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