heart scintiscanning

例句：

1. 1. Heart scintiscanning is a non-invasive method of imaging the heart's blood flow.
   心脏核素扫描是一种非侵入性的成像方法，用于观察心脏的血流。
2. 2. During the procedure, the patient will receive a small injection of radioactive material into their veins.
   在手术过程中，患者将接受一小剂量的放射性物质注入静脉。
3. 3. The scanner uses a special camera to capture images of the heart's activity.
   扫描仪使用一种特殊的相机来捕捉心脏活动的图像。