Technical Performance of a New Cardiac Technology "IQ-SPECT" Applied to SCINTI-CT Myocardial Imaging With 99mTc-Sestamibi in Coronary Patients (IQSCINTIMYOC)

Inclusion Criteria:

• age over 18 years (except major patients under guardianship)
• free and informed consent signed
• written and spoken French
• beneficiaries of the social security system
• coronary insufficiency detection needed for patients with signs or symptoms suggestive of coronary insufficiency; or in symptomatic patients, but with a high risk of coronary heart disease: diabetes and / or with multiple cardiovascular risk factors and / or having a peripheral vascular disease

Exclusion Criteria:

• Patients with a recent history (<21 days) acute coronary failure (myocardial infarction, unstable angina);
• Patients with an irregular heartbeat, because of the impossibility of achieving a good quality ECG synchronization (atrial fibrillation, ventricular extra-systole or supraventricular over 25% of cardiac cycles);
• Patients with a pacemaker with a permanent electro-drive at rest;
• Patients with non-ischemic heart disease: primitive dilated cardiomyopathy, severe hypertrophic cardiomyopathy, severe valvular cardiomyopathy (aortic stenosis, aortic or mitral leakage grade> 2), congenital heart disease;
• Patients with severe extra-cardiac disease may interfere with treatment decisions (cancer, severe hepatic or renal impairment);
• Major patients under guardianship;
• Pregnant or lactating women;
• Women in age and condition of childbearing;
• Patients unable to understand the purpose of the study.

Cons-indications to physical stress test:

• Uncontrolled heart failure,
• Pulmonary embolism, phlebitis evolution,
• Myocarditis, pericarditis, endocarditis evolving
• Physical disability,
• Thrombus
• Asthma
• contra-indication for exercise testing as dipyridamole:
• Severe Asthma