Perfusion is graded on a scale of 0 to 4, based on the uptake of blood through the coronary arteries. Artery blockage can cause reduced uptake or abnormal perfusion, meaning the heart muscle isn ...

For the perfusion scan for the blood flow test, the doctor will inject a small amount of radioisotope into your vein. Then, the VQ scanner will pick up the radioisotope energy in your body.

These obstructions reduced cerebral blood perfusion within 30 minutes, with the most significant effects in smaller vessels. Unlike classical blood clots, these blockages stemmed from physical ...

A heart perfusion imaging scan is a noninvasive diagnostic procedure to assess blood flow to the heart muscle. This scan can provide doctors with valuable information about a person’s heart ...

The Bottom Line. Investigators used MRI to evaluate brain perfusion in patients with transfusion-dependent (n=54) and non–transfusion-dependent (n=23) β-thalassemia versus 56 controls.

A perfusion machine containing a liver from a deceased donor. The machine essentially pumps blood or an oxygenated fluid through tubes into the blood vessels of a donated organ, preserving it.

A glassfrog during different levels of activity, showing the change in RBC perfusion within its circulatory system. The same animal was filmed across all three conditions using transmitted light.

Doctors say they can boost the odds donated organs will be usable by restarting blood circulation with a pump after donors are declared dead. Critics say the procedure blurs the definition of death.

The technology for machine organ perfusion has been around since the 1960s, but the focus has mainly been on kidneys, livers, and later lungs. These organs are able to last outside of the body for ...