need help please
Which of the following are correct for Fluoroscopy?
Select one or more:
1)The technique is based on differential penetration of X-rays into different tissues.
2) Blood vessels can be highlighted without the need of a contrast medium.
3)Requires subtraction techniques to produce a clear image of blood vessels.
4) It does not allow constant imaging of blood vessels as interventional techniques are per-formed.
5) It is an invasive technique.

Question

need help please
Which of the following are correct for Fluoroscopy?
Select one or more:
 1)The technique is based on differential penetration of X-rays into different tissues. 
2) Blood vessels can be highlighted without the need of a contrast medium. 
 3)Requires subtraction techniques to produce a clear image of blood vessels. 
4) It does not allow constant imaging of blood vessels as interventional techniques are per-formed. 
5) It is an invasive technique.

anonymous · Answer

is anyone can answer my question please.many thanks