A Principle of Radiographic Contrast

Development of Radiographic Contrast-Enhancement Masks

Radiographic contrast-enhancement mask (RCM) algorithms were developed to overcome some limitations of general digital radiography (DR). Large attenuation differences of some anatomical regions result in exit radiation having a wide dynamic range. In general radiography, this results in anatomy not being fully visualised in the image or being displayed with suboptimal contrast. Physical tissue ...

Side Effects of Radiographic Contrast Media

Radiographic contrast agents have been in use for over 60 years to improve the visibility of internal organs and structures in X-ray based imaging techniques such as radiography, angiography, and contrast-enhanced computed tomography scans and to perform cardiac catheterizations and percu-taneous coronary interventions. Their use for imaging and intravascular intervention keeps increasing parti...

Objective Evaluation of Radiographic Contrast- Enhancement Masks

Several other methods of achieving dynamic range control were also discussed in the previous chapter. These methods are typically unsharp mask filters with large kernel sizes, and multi-scale approaches such as multi scale image contrast amplification (MUSICA) developed by the Agfa-Gevaert company (Vuylsteke & Schoeters, 1999). In achieving their goal of dynamic range control, these methods alt...

review of radiographic methods in dental implantology

چکیده ندارد.

Radiographic Contrast-Enhancement Masks in Digital Radiography