About this trial
The purpose of the study is to compare the various 2D and 3D methods of valvular heart disease quantification (Doppler, PISA, VCA, volumetric method) and strain with cardiac magnetic resonance (CMR) measurements of left and right ventricular systolic function strain and myocardial fibrosis assessment.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 18-90 years of age
Suspected moderate or severe MR,AR or AS on the basis of prior known clinical history or clinical exam.
Suspected CRT "non-responder" with an implanted MRI compatible CRT device and reduced ejection fraction
Disqualifiers
Acute traumatic cardiac injury
Aortic dissection or aortic root rupture
Congenital heart diseases such as patent ductus arteriosus, coarctation of aorta, ASD and VSD
Presence of A-V fistula or intracardiac shunts
Trial population
Patients with suspected chronic AS, AR, MR or heart failure with reduced ejection fraction being evaluated for CRT implantation referred for clinically indicated CMR and echocardiography by their cardiologists.. CMR and echocardiography will be clinically indicated in this study group.
Trial design
Cohort
Prospective
Treatments tested in this trial
MRI with strain measurement
Diagnostic testCMR measurements of left and right ventricular systolic function strain and myocardial fibrosis
Echocardiography
Diagnostic testDoppler, PISA, VCA, volumetric method as performed during echocardiography
Treatment groups
Trial outcomes
Primary outcomes
Change in MRI Quantified LVEDVi
10% Change from Baseline - units of measure cc/m2
Change in MRI Quantified LVESVi
15% Change from Baseline - units of measure cc/m2
Change in MRI Quantified LV Strain
5% Change from Baseline
Change in MRI LVEF
5% Change from Baseline
Secondary outcomes
Accuracy of echocardiography as compared with MRI
Comparison of MRI measurements based on standard of care echocardiography.
Sponsors and contacts
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