Fluoroscopy

What is fluoroscopy?

Fluoroscopy is an x ray examination of dynamic structures and fluids, which means a image of the motion of internal organs while the x ray tube is energized. During the procedure a continuous x ray beam exit through the patient and transmitted to a monitor so the radiologist could observe the body part that is being examinated.

History:

Fluoroscopy was introduced by Thomas A.Edison in 1896, a year after x rays were discovered.
Before the invention of image intensifiers the fluoroscopic images were viewed uder low light conditions using red googles.

Examinations:




Different procedures are done by using fluoroscopy to evaluate specific areas of the body, including the bones, muscles, and joints, as well as solid organs such as the heart, lung, or kidneys.






Some commons examinations are:

• BE (Barium Enema)
  
  



• Cardiac Catheterization
  




• (IV) intravenous catheters

Equipment:

Linear Tomography

Tomography:

In x rays a tomography is an examination desing to move the x ray tube in opposite directions during the exposure, to blurr the unwanted anatomical structure from the one in the plane of interest that will appear sharper.




Principles:

The x ray tube moves in one direction, while the image receptor moves in the opposite directon, the position of the fulcrum determines the object plane and only those anatomical structures lying withing this plane are imaged clear.

Equipment:

Tomographic systems are similar to conventional radiographic systems used. Nowdays the introduction of CT (computed tomography) and MRI (magnetic resonance imaging), make the convetional tomography be used less frequently.

Applications:

Conventional tomography was applied principally to improve contrast resolution. For example: to get high contras procedures such as imaging of calcified kidney stones. A disadvantange of tomography is that increased patient dose.