X-ray examination, x-ray image, radiograph, x-ray X-rays X-rays are electromagnetic rays that are able to influence the matter they pass through. The reason for this is the fact that X-rays have ionizing properties. This means that they are able to remove electrons (negatively charged particles) from atoms or molecules. As a result, positively charged particles … X-ray
Procedure The procedure of an X-ray examination is generally known. You should remember to remove all metallic objects (jewelry) in order not to endanger the assessability of the X-ray image. Side effects X-rays represent an enormously important step in the diagnosis of many diseases. For this reason, it is impossible to imagine everyday medical life … Procedure | X-ray
Evaluation of the images The particles released during positron emission tomography are detected by a special detector. A connected computer calculates the incoming information and generates an image that shows the metabolic activity. Areas with high activity are displayed brighter than those with low activity. Some organs such as the brain or the heart naturally … Evaluation of the images | Positron emission tomography (PET)
Definition Positron emission tomography (PET) is a special imaging examination procedure that can be used to visualize metabolic processes in the body. For this purpose, the patient is administered low-level radioactive glucose via the vein, made visible with a measuring unit and the information is processed into a spatial image. The sugar is distributed throughout … Positron emission tomography (PET)
Functionality of PET In positron emission tomography, good preparation and compliance with various measures are crucial for good image quality and informative value. Current blood values (especially kidney, thyroid and sugar values) must have been determined in advance. On the day before the examination, any physical exertion must be avoided. In addition, no more food … Functionality of PET | Positron emission tomography (PET)
Introduction Contrast media are used for various imaging procedures in medicine, for example in a CT, MRI, ultrasound or angiography to assess blood vessels. Contrast medium is often administered intravenously. The contrast medium then spreads into the blood vessels and accumulates, especially in areas with good blood circulation. This is helpful, for example, in the … Contrast medium allergy
Possibilities of an allergy test If you have noticed a slight tingling in your nose or itching or the like during an examination with contrast media, a test can be used to check whether an allergy is actually present. This test is usually carried out as part of a so-called prick test. In the prick … Possibilities of an allergy test | Contrast medium allergy
Preparation of a contrast medium administration despite allergy For some indications, it is not possible to dispense with the administration of contrast medium even if the patient has an existing contrast medium allergy, because the best images are obtained with contrast medium. If contrast medium administration is necessary despite the allergy, the patient is given … Preparation of a contrast medium administration despite allergy | Contrast medium allergy
Scintigraphy of the kidney There are also two different types of scintigraphy of the kidneys: Static renal scinitgraphy is used to visualize the functional kidney tissue. Technetium DMSA (dimercaptosuccinic acid) is usually used as the radioactive substance for this examination. It accumulates wherever living kidney tissue is present. This allows, for example, the detection of … Scintigraphy of the kidney | Scintigraphy
Scintigraphy of the bones Bone scintigraphy (also known as skeletal scintigraphy) can be used to visualize bone metabolism and identify areas of increased activity. Our bones are not lifeless scaffolds, but are subject to constant build-up and breakdown. For the scintigraphy of the bones, radioactively marked components of bone metabolism are used (diphosphonates). After injection … Scintigraphy of the bones | Scintigraphy
Scintigraphy in children A scintigraphy is always a certain stress for the body because there is radioactive material in the body and it interacts with it. Therefore, scintigraphy is often avoided in children. However, if there is a suspicion of child abuse, the scintigraphy can provide information. If a child is beaten, there are usually … Scintigraphy in children | Scintigraphy
Scintigraphy is an imaging procedure that plays a decisive role in nuclear medical diagnostics. To create an image, a so-called scintigram, the patient is administered radioactively marked substances. These substances emit radiation and can then be detected by gamma camera in the corresponding organ or tissue. With the help of a radioactive substance, tissue or … Scintigraphy
