What is a CT Scan?
A CT (Computed Tomography) is a technique to produce a detailed cross-sectional image of soft tissues, bones, and blood vessels of a person’s body. CT Scan is performed by using rotating x-ray machines to create different X-ray images from different angles of a person's body and then computers to cross-sectional images of the body. CT Scan provides more detailed information than the plain X-ray.
A CT Scan can be used to visualize the head, abdomen, knee. Chest, heart, spine, and shoulders.
How is a CT SCAN performed?
During a CT scan, a person has to lie inside a tunnel-like machine. The machine rotates and takes different x-ray images from different angles. These images are sent to the computer to create cross-sectional images of the body. These images may be combined to create a 3-D image of the particular area.
What is HRCT CHEST test?
HRCT is a High Resolution Computed Tomography use to diagnose any problem in lungs.
HRCT is a method of detecting any problem or disease in lung tissues and airways more precisely then chest2-rat method. Modern Computed tomography equipments performs a volume HRCT scan which covers the whole lung tissues. Due to the second wave of deadly Corona virus, HRCT scan is more demanding to monitor the tissues of lungs. It is saying that covid-19 effects on the lungs area so, it is very essential to undergone HRCT Chest test if you feel the serious symptoms of Covid 19. HRCT chest test can be applied to diagnose both mild or chronic disease of the airways and tissue of lungs. High resolution computed tomography also used to detect disease like Pneumonia, asbestosis. It is also performing diagnose the various inflammations, diffuse alveolar injury and drug reactions.
Why is CT Scan performed?
Although CT scan has many uses, mainly it is used to diagnose several diseases and injuries.
· This technique helps the doctors to
· To evaluate the internal injuries and bleeding.
· Diagnose bone fractures, muscle disorders, and other infections.
· Detect the location of tumor and masses
· Monitor the effectiveness and condition of diseases like cancer, heart disease, etc.
· Study the internal structure of the body like blood vessels.
· Guide the procedures of surgeries and biopsies.
Risks involved with CT scan.
A CT scan involved a small dose of radiation which is not proven to be harmful even for people who have undergone several scanning processes. The chances of having cancer with a CT Scan are even less than 0.05%. A CT scan is only given if it is clearly prescribed by the doctor. Otherwise, it could be serious. Usually, exposure to radiation results in cancer and thyroid issues but in rare cases.
Sometimes the CT scanning process may lead to reactions in patients who are allergic to the contrast material used in CT scan.
Precautions we should take before undergoing CT scan
For preventing any risk, the following precautions should be taken before undergoing CT scanning.
· Don’t eat or drink anything for a few hours before the CT Scanning process.
· Remove all of your clothes and wear a hospital gown .
· Remove all the metal objects like jewelry, belt, and dentures to prevent their interference with results.
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Original Source: https://pathologylabs1.wordpress.com/2021/06/01/what-is-ct-scan-purpose-risks-side-effects-and-results/