Diagnostic imaging allows doctors to look inside the body to obtain guidance or answers to questions about your health.
There is a wide range of devices and ways to achieve an image of body structures. The type of method used for diagnosis depends on the symptoms and body parts which will be involved in the investigation.
Implementation of almost all imaging studies is simple and does not involve any pain. To get a good picture we need you to remain still in the device for a long time, which can cause discomfort.
Magnetic Resonance Research
Magnetic Resonance uses giant magnets and radio waves to depict bodies and structures inside your body. Specialists use magnetic resonance imaging for the diagnosis of many diseases, from changes in the tendons to tumors. MRI is very useful for the evaluation of the brain and spinal cord.
During the test, the patient lies on a table which automatically enters the machine – which resembles a tunnel. Depending on the study of the body, the examination time may be quite short or require a longer period. The patient must then remain static. The test is painless. The machine is noisy, so before the study, patients get earplugs.
Before the test, tell your doctor:
• If you are pregnant
• If there are any metal pieces contained in your body. Metallic foreign bodies can be in the body when you're a welder, or if you have had an injury or surgery.
• If there are metal or electrical devices in the body. Such as pacemakers or joint replacements.
The Computed Tomography Research
Computed Tomography is one method of imaging the human body using X-rays. The test produces many images of the tissues, which are then connected together to form an image of the entire structure.
Computed Tomography is used for:
• Assessment of fractures
• Evaluation of neoplastic lesions
• Evaluation of congestion
• Assessment of heart disease
• Evaluation of internal bleeding
During the test, the Computed Tomography patient lies still on the table. The table automatically and slowly moves inside the machine. The test is painless. To illustrate some of the structures it is necessary to administer an intravenous contrast.
X-ray uses electromagnetic radiation to depict structures of the body. The resulting images show the structure of the body in shades of gray, black and white. This is because the various tissues of the human body absorb radiation differently. Calcium located in bones absorbs radiation the most, because the bones are white. Fat and other soft tissues absorb them less and the X-rays are gray. Because air absorbs the least, the lungs are black.
The most common X-rays are used for diagnosis of injuries and fractures. However, they have many other applications, e.g. imaging of the lungs, suspected of inflammation. Mammograms use X-rays to diagnose breast cancer.
During the test, the patient can cover the sensitive parts of the body with special pads that do not let the electromagnetic waves through, thus protecting the patient from receiving an unnecessarily high dose of radiation.
The radiation dose received by the patient during the test is small. It is roughly equivalent to what a person absorbs within 10 days in the environment.
Ultrasound is a type of research illustrating the human body through the use of high-frequency sound waves. It allows organs and structures inside the body to be imaged. Doctors use ultrasound to examine the heart, blood vessels, kidneys, liver and other organs. During pregnancy, it is used to assess the fetus. In contrast to X-ray, ultrasound does not expose you to additional radiation.
During the test, the patient lies on the couch. Using a special greased gel, the doctor moves the head of the probe around part of the patient's body. The probe emits and receives ultrasonic waves, and the information is sent to a computer which shows a picture of the examined structures.