Wall Motion Recovery in Dobutamine Stress MRI
Author Information
Author(s): Berger Alexander, Kelle Sebastian U, Schneeweis Christopher, Frick Michael, Klein Christoph, Fleck Eckart, Gebker Rolf
Primary Institution: German Heart Institute Berlin
Hypothesis
The persistence of induced wall motion abnormalities during recovery may be associated with the extent of coronary artery disease.
Conclusion
Normalization of left ventricular induced wall motion abnormalities is related to the extent of coronary artery disease.
Supporting Evidence
- The recovery time was associated with more severe coronary artery disease.
- The higher the wall motion score index was at peak stress, the longer induced wall motion abnormalities persisted during recovery.
- Significant differences in wall motion score index were observed between intermediate and severe coronary stenosis.
Takeaway
Doctors used a special heart test to see how long heart problems lasted after stress, and found that longer problems meant more serious heart disease.
Methodology
Twenty-eight patients underwent dobutamine stress magnetic resonance imaging and invasive coronary angiography to assess wall motion abnormalities.
Participant Demographics
Patients with suspected or known coronary artery disease.
Statistical Information
P-Value
p=0.03
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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