Question

Summarize the basic workflow of a brain perfusion scan. How do we time the scan? Why is the timing important?

Answer 1

Brain perfusion scan is a brain test that shows how much blood taken up in certain areas of brain. From this we can take information that how brain is functioning.  

Work flow :- using a radio tracer brain perfusion scan is done.patient will be provided injection of radio tracer into veins in arm. Then there is use of special camera to detect the tiny radioactive particles emitted by radiotracer.

There are different types of brain perfusion scan. 1. SPECT( single photon emission computer tomography ).

2. Positron emission ( PET). They use radioactive substances.  

Onther which dont use radioactive are 1. CT

2. MRI .

Normally time taken is 30 to 60 min. Complete scan takes 10 min. To an hour. Mostly time will vary it depends on overall procedure.

Time is important because patient fell panic . They sometimes get afraid. It is important to hold the amount of time. Also depends upon scanning speed.