Objective To evaluate the curative effect and coronary artery restenosis after PTCA by stress myocardial perfusion imaging(MPI).

The overall sensitivity for diagnosis of coronary artery disease is higher by stress myocardial perfusion imaging than by stress echocardiography, whereas the specificity is slightly higher by the later.

Value of exercise stress radionuclide myocardial imaging in diagnosis of coronary heart disease;