Key result
Dobutamine-MRI detected wall motion abnormalities in 85% of patients with significant coronary stenoses, compared to 77% detected by exercise stress electrocardiography.
Why the study?
Does dobutamine stress MRI accurately detect and localize significant coronary artery stenoses in patients without prior myocardial infarction?
Population
28 patients without previous myocardial infarction but with significant proximal stenoses of one or more…
Comparison
Gradient-echo magnetic resonance imaging at rest… vs Exercise stress electrocardiography and coronary…
Design
Cross-sectional
Authors
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Dobutamine-MRI may aid noninvasive stenosis detection; leaves open its clinical role without prospective outcome trials.
Observational (n=28)
Does dobutamine stress MRI accurately detect and localize significant coronary artery stenoses in patients without prior myocardial infarction?
Absolute Event Rate: 85% vs 77%
Dobutamine stress MRI demonstrates good sensitivity and specificity for the detection and localization of significant coronary artery stenoses.
Baer et al. (1994) conducted an observational in Significant proximal coronary artery stenoses (n=28). Dobutamine-MRI vs. Exercise stress electrocardiography (EST) was evaluated on Detection of pathological stress response (wall motion abnormalities on MRI vs pathological EST). Dobutamine-MRI detected wall motion abnormalities in 85% of patients with significant coronary stenoses, compared to 77% detected by exercise stress electrocardiography.
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