The first clinical experiences using robust cardiac-respiratory dual gating are encouraging. Further testing in larger clinical populations using tracers designed especially for plaque imaging is warranted.

The dual gating method improves detection of small moving targets in a phantom and it is feasible in clinical situations.

The spirometric volume change linearly estimates motion of myocardium in PET with good accuracy and have potential to guide selection of optimal number of respiratory gates in cardiac PET.

Atherosclerosis of coronary arterials is a very common disease in human population. Early diagnostics of arterial plaques is very important for certain risk patients. Heart is a difficult organ to image because of its movement that is caused by two independent sources: heart beat and respiratory cycle. The aim of this study was to construct a moving heart phantom with respiratory and cardiac movements. The phantom includes the left ventricular chamber, heart muscle and coronary arterials. In addition there was a need to mimic arterial plagues in the coronary arterials.