Age

18–90

Sex

ALL

Healthy volunteers

Not accepted

1. Patient is referred to myocardial perfusion D-SPECT for clinical indications.
2. Written informed consent is obtained by a study investigator.

1. Patient is diagnosed as having uncontrolled congestive cardiac failure or cardiogenic shock.
2. Patient is diagnosed as having uncontrolled hypertension with resting blood pressure \> 220 mm Hg systolic or 110 mm Hg diastolic.
3. Patient pregnancy (known or suspected).
4. Lack of written informed consent
5. Prisoner status
6. Minors under the age of 18 as coronary artery disease is generally an adult disease

Low Dose One-Day Tc99m Protocol With a High-Efficiency Cardiac Dedicated Gamma Camera For Detection of Coronary Disease