<unk>  <unk>  is an invasive procedure used routinely to obtain small samples of heart muscle, primarily for detecting rejection of a donor heart following heart transplantation. It is also used as a diagnostic tool in some heart diseases. A bioptome is used to gain access to the heart via a sheath inserted into the right internal jugular or less commonly the femoral vein. Monitoring during the procedure consists of performing ECGs and blood pressures. Guidance and confirmation of correct positioning of the bioptome is made by echocardiography or fluoroscopy. The risk of complications is less than 1% when performed by an experienced physician in a specialist centre. Serious complications include perforation of the heart with pericardial tamponade, haemopericardium, AV block, tricuspid regurgitation and pneumothorax.<unk> , sampling myocardium was first pioneered in Japan by S. Sakakibra and S. Konno in 1962.
Endomyocardial biopsy
Ballistocardiography
Magnetocardiography
Phonocardiogram
Tissue Doppler echocardiography
Electrocorticography
Electrocochleography
Coronary CT calcium scan