Data based cardiac gating in rats and mice
During data-based cardiac gating available on the X-CUBE, the cardiac signal is derived from the data itself. The signal triggers are then fed into the reconstruction algorithm, which gains gated images. A local (circular) CT acquisition with a high temporal resolution (10 ms) was done, resulting in an acquisition time of 2 minutes and 40 seconds and a dose of less than 280 mGy.
The movies below show data based cardiac gating in rats and mice, respectively. In rats, no contrast agent was administered. In mice, Exitron12000 was used, since it remains in the blood pool for a prolonged time, which results in visualisation of the blood pool.