The scintigraphy imaging in dog demonstrated that it was rapidly cleared from the lung, and the radioactive concentration approached that of background 1hr after injection. At 15min after injection, the myocardial imaging displayed clearly up to 3hr.

• 4从家犬显像可见 ,99m Tc- Q3在肺中清除迅速 ,1小时后肺部放射性水平接近本底 ,1 5分钟时心肌影像已清晰可见 ,3小时后才逐渐消退 ;