Thursday, June 19, 2008

Definition of Low-Dose CT Scan

The main issue within radiology today is how to reduce the radiation dose during CT examinations without compromising the image quality. Generally, a high radiation dose results in high quality images. A lower dose leads to increased image noise and results in unsharp images. Unfortunately, as the radiation dose increases, so does the associated risk of radiation induced cancer. However, there are several methods that can be used in order to lower the exposure to ionizing radiation during a CT scan.
New software technology can significantly reduce the radiation dose. The software works as a filter which reduces random noise and enhances structures. In that way, it is possible to get high quality images and at the same time lower the dose by as much as 30 to 70 percent.
Individualize the examination and adjust the radiation dose to the body type and body organ examined. Different body types and organs require different amounts of radiation.
Prior to every CT examination, evaluate the appropriateness of the exam whether it’s motivated or if another type of examination is more suitable.

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