A frequent concern regarding<unk>  has been its safety. However, it has a low risk of less than 1% when performed by an experienced physician in a specialist centre. Possible complications, which almost all occur at time of procedure, include rupture of the right intraventricular septum, conduction block, arrhythmias, pneumothorax, tricuspid regurgitation, and pulmonary<unk> olism. Death has been reported, but is rare.
Endomyocardial biopsy
Ballistocardiography
Magnetocardiography
Phonocardiogram
Tissue Doppler echocardiography
Electrocorticography
Electrocochleography
Coronary CT calcium scan