Assessment of Wall Thickness in Hypertrophic Cardiomyopathy

Inclusion Criteria: 1. Clinically and echocardiographically defined hypertrophic cardiomyopathy. 2. Clinically indicated transthoracic echocardiography as part of the medical evaluation. 3. No contradiction to administration of ultrasonic echocardiography contrast. 4. Planned clinically indicated cardiac magnetic resonance imaging as part of medical evaluation. 5. No contraindication to cardiac magnetic resonance imaging (such as cochlear implants, central nervous system aneurysm clips and other implanted medical devices). 6. Age 18 years and older Exclusion Criteria: 1\) Insufficient image quality for determination of maximal wall thickness.