Fluoroscopy

Although there are various kinds of medical imaging techniques, fluoroscopy deserves special mentioning. Considering the rich heritage held by x-rays (which is extensively used in this imaging process), the roots of the procedure can be traced to 1895. For the curious readers, here is a simple and straightforward explanation of fluoroscopy. It is the process of using x-rays to create accurate, real-time images of the internal organs. Bear in mind that we will not be dealing with the technical aspects of the machinery or the processes involved! However, this article will suffice as an introduction to one of the most commonly used medical imaging techniques.

In order to execute fluoroscopy, we will need to use a fluoroscope. It is nothing but an arrangement of a source of x-rays and a fluorescent screen - placed diagonally opposite to each other. In the fluoroscopes available today, the manufacturer will include a video camera that will be able to record the footage of the resultant image (that materializes on the fluorescent screen). Here is a pro-tip: the image formed on the screen is barely legible. In order to augment the quality of the image, the modern day fluoroscopes utilize a set of x-ray image intensifiers.

Now that you have an understanding of the basic structure of the machinery, allow me to cite the working of the fluoroscope. Placing the body (or a part of it) in the path of x-rays can produce a faint image on the screen. The body cells would absorb a part of the incident x-rays. This rate of absorption is solely dependent on many factors (we will not be considering these aspects, for the time being). The flow of electrons would generate feeble quantities of heat too; a part of the image displayed on the screen is due to the direct result of this generation of heat energy!

Are there any side effects on the body of the patient, when they are subjected to the fluoroscope? In order to increase the intensity of the image (formed on the screen), radiologists used to fine-tune the machinery to produce large quantities of x-rays. This will in turn open up another set of problems such as the high possibility for the occurrence of cancer. Anyway, the situation is more stable and safe as of today because manufacturers now apply augmented mechanisms that can generate legible images with a small dose of x-ray.

According to the Health Care Resource Guide, physicians use the technology to study any various parts and organs on the body. Although they were originally used to examine the skeletal framework (and the problems associated with it), these days, the same mechanism is employed to study the gastrointestinal tract and for treating cancer. Patients who have undergone operations in the heart and who use pacemakers might be asked to opt for this process - this would enable the doctor to rectify positional errors. The practical uses of the technique are manifold. According to insider sources, manufacturers are working around the clock to eliminate the blurring and ghosting of the images displayed on the fluorescent screen.