X Ray Image Quality. On a good quality chest x ray examination the entire thorax should be visible and should be positioned in the center of the image. Reducing ripple increases quality.
2 quality voltage kv or penetrating power of the radiation beam. Image quality is difficult to define because it is subjective in its nature but an optimum quality image enables the observer to extract information from the image and make an accurate diagnosis. This is the difference caused by different degrees of attenuation as the x ray beam is transmitted through different parts of the patient s tissues.
An ideal way to describe the quality of an x ray beam is to specify its spectral distribution that is energy fluence in each energy interval as shown in figure 3 9 however spectral distributions are difficult to measure and furthermore such a complete specification of the beam quality is not necessary in most clinical situations.
All x ray photons reach detector. Image quality is difficult to define because it is subjective in its nature but an optimum quality image enables the observer to extract information from the image and make an accurate diagnosis. The visibility of the radiographic image depends on two factors. This shows the importance of ip in x ray imaging.