What Can Reduce the Informational Value of a CT Scan?
Factors That Affect CT Image Quality
There are several important factors that can influence the accuracy of Computed Tomography results. Understanding these factors helps ensure the highest possible image quality and a correct diagnosis.
Movement During the Procedure
If the patient moves or fails to hold their breath when instructed, image clarity may be significantly reduced. This can lead to image distortion and, in some cases, incorrect interpretation.
Metal in the Area Being Examined
Metal objects located within the scanning field may create artifacts and shadows on the images, which can substantially reduce diagnostic accuracy.
Failure to Follow Preparation Instructions
Before the examination, the physician or CT staff provides instructions regarding preparation and procedure requirements. Ignoring these recommendations may significantly reduce the effectiveness and diagnostic value of the study.