MyoVista wavECG Clinical Validation Study Versus Low e' on Echocardiogram

Inclusion Criteria:

* Subjects with risk factors for cardiac disease or suspected of having cardiac disease during clinical assessment.
* The subject provides written informed consent using an Informed Consent Form that is reviewed and approved by the site's Institutional Review Board (IRB).
* Conventional ECG results show a sinus rhythm and no other contraindicated rhythm abnormalities (see exclusions below).
* Subject is \>/= 22 years of age

Exclusion Criteria:

* The subject has current acute coronary syndrome, decompensated heart failure or stroke
* The subject has received any prior cardiac interventions or surgical therapeutic procedures relating to cardiac abnormalities: valve replacement, pacemaker implantation, coronary artery bypass grafting (CABG), heart transplant, ablation, coronary stent placement, etc.
* Conventional ECG results indicating a lack of sinus rhythm and/or any other contraindicated rhythm abnormalities, including: active atrial fibrillation or atrial flutter, left anterior fascicular block, left and/or right bundle branch block
* The subject is pregnant at the time of the study testing
* The subject has chest deformities that interfere with accurate measurement of ECG (either conventional or wavECG)
* Subjects with central nervous system or musculoskeletal abnormalities that may interfere with accurate acquisition of ECG and/or echocardiogram measurements.
* The subject is enrolled in another clinical study that may interfere with MyoVista or echocardiogram measurements. Exceptions to this may be approved by HeartSciences.