Structures or organs can be evaluated more effectively for their size, shape and position by use of contrast radiography in animals.
Indication and contraindication of contrast radiography in animals Read More »
Renal angiography is a contrast radiography of Renal vascular architecture and assessment of cortex to medulla ratio.
Before taking a contrast radiograph in animals, a plain radiograph should be taken to match it with the contrast radiograph to get appropriate results.
Contrast medium is a substance which is either radio opaque or radiolucent, that can be administered to the animal to increase radiographic contrast within an organ or a system.
Irregular poorly defined areas of increased density noticed in lungs could be seen in x-ray radiograph and can be diagnosed as aspiration pneumonia or Pulmonary infiltration.
In order to interpret a radiograph for pathological lesion, it is essential that radiographic appearance of normal structures are known. The radiograph should be interpreted without any preconceived idea. Radiography is an aid to diagnosis and not the ultimate diagnosis itself.
Principles of viewing and interpreting x-ray films Read More »
Heel effect refers to the lower field intensity towards the anode in comparison to the cathode. it is due to variation of the intensity of X-rays emitted by the anode.
Production of x-rays The production of x-rays occurs as a result of a sequence of events. The evacuated x-ray tube is a device for producing free electrons from heated tungsten filament. this process of production of x-rays called thermionic emission. Prerequisite for x-rays production These are the requirements for x ray production- Basically X- ray
X-rays are high-energy radiations with high frequency. (Energy is inversely related to wavelength) Because of their high energy, X-ray can able to penetrate materials, which readily absorb and reflect visible light.
