Comparative study of quantitative blood pool SPECT imaging with 180° and 360° acquisition orbits on accuracy of cardiac function

This study showed that SPECT image acquisition by use of both the 180° method and the 360° method considerably underestimated LV volume quantification. In addition, the LV volume with the 180° method was significantly smaller than that with the 360° method. Thus a 360° acquisition orbit may be suitable for more quantitatively accurate results when blood pool imaging is performed with gated SPECT.