Radiology presents a branch of medicine that relates to bright energy in the treatment of diagnosis and diseases. This field can be divided into two major areas – Diagnostic Radiology and Interventional Radiology. A therapist who specializes in radiology is called a radiologist.
The result of the imaging study depends solely on the signal or quality of its technical implementation. Diagnostic radiology represents the last link in the specialist diagnostic chain because they search for relevant image information to evaluate and ultimately support voice diagnosis.
History of radiology
Working in a dark laboratory in Würzburg, Germany, in 1895. Wilhelm Conrad Röntgen noted that the painted screen with a fluorescent material in the same room. But it was removed two feet away from a cathode ray tube and made a lightproof, fluores.
Roentgen acknowledged that the screen was responding to near-production rays unintentionally by the nearby rays, which they identified as “X-rays”. Beginning with the explosion of Ionizing radiation and the reverse image on the part of the film began to create radiographic images.
For his discovery, Ront was honored with the first Nobel Prize in Physics in 1901. And people were fascinated with the further development and effects. However, early radiologists were not concerned about the possible negative effects of X-rays. Thus defensive measures were not introduced until 1904 after the death of Clarence Daly (X-Ray product and long-term supporter of Thomas Edison in the test).
Like images created in 1895, traditional radiographic images (usually shortened to x-ray) are made by ionizing radiation (without adding contaminants like barium or iodine) and give light to the lightening surface, which in turn is a secret image Is processed later.
The main advantages of traditional radiography are likely to be found virtually anywhere using images related to ineffectiveness and mobile or portable machines (for example, mammography). The disadvantage is a limited range of densities and can use the ionizing radiation.
Computed tomography (CT) currently represents the radiology workplace. Recent developments allow extremely fast volume scans that can cut two-dimensional in all possible targets, as well as in dimensional three-dimensional reconstruction. However, radiation remains high, thus requiring a strict signal for each specific CT.
Ultrasonication is still the cheapest and most harmless technology in radiology, so many physicians outside radiology use this technique. Ultrasound probes use acoustic energy over humans’ hearing frequency to produce images. This method has no ionizing radiation, so it is especially useful in imaging of babies and pregnant women.
Magnetic resonance imaging (MRI) uses potential energy stored in the body’s hydrogen atoms. Those molecules are used by very strong magnetic fields and radiofrequency dal so that sufficient quantity of localization and tissue-related energy is produced. Which will be used by highly advanced computer programs to create two-dimensional and three-dimensional images. The main advantage is that no ionizing radiation is used.
Fluoroscopy represents a method where X-rays are used in real-time visualization of the body, evaluating parts of the body, operating opposite flows and transplantation of bones and joints. Radiation doses are significantly higher in fluoroscopy compared to conventional radiography, as many images are received for each minute of the process.
Nuclear medicine is produced by giving patients short-term radioactive materials and then using a gamma-camera or positron emission scanner. Which records the radiation evoked from the patient. The most common nuclear medicinal methods used in clinical practice are single-photon emission computed tomography (SPECT) and positron emission tomography (PET).
After all, increasing the equipment and increasing computer power has allowed Radio Diagnosis to integrate data imaging sets from different models. The most popular use of this is the integration with PTT Executive Nuclear Medicine Data City Anatomical Data (PET / CT), which is currently widely used in the imaging of cancer.