Dilated cardiomyopathy echocardiography and ultrasound
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sachin Shah, M.D.
Overview
Echocardiography is the most common imaging finding used to diagnose dilated cardiomyopathy. Findings may include ventricular and atrial dilatation, increased left ventricular mass, a global reduction in systolic function, and focal wall motion abnormalities.
Echocardiography/Ultrasound
Echocardiography
The diagnosis of dilated cardiomyopathy is based on clinical presentation and imaging findings. The most common imaging modality used to diagnose dilated cardiomyopathy is 2D-echocardiography. Echocardiographic findings of dilated cardiomyopathy include:[1][2]
- Dilation of the left ventricle; however, may include dilatation of all 4 cardiac chambers.
- Left ventricular wall thickness usually is normal, but the dilation the LV mass is increased.
- In addition, there is a global reduction in systolic function.
- Occasionally there may also be focal wall motion abnormalities even in patients without flow limiting coronary artery disease.
The diagnosis requires a dilated left ventricle and low ejection fraction.
References
- ↑ Thomas DE, Wheeler R, Yousef ZR, Masani ND (2009). "The role of echocardiography in guiding management in dilated cardiomyopathy". Eur J Echocardiogr. 10 (8): iii15–21. doi:10.1093/ejechocard/jep158. PMID 19889654.
- ↑ Mathew T, Williams L, Navaratnam G, Rana B, Wheeler R, Collins K; et al. (2017). "Diagnosis and assessment of dilated cardiomyopathy: a guideline protocol from the British Society of Echocardiography". Echo Res Pract. 4 (2): G1–G13. doi:10.1530/ERP-16-0037. PMC 5574280. PMID 28592613.