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A computed tomography (CT) scan is an imaging examination used by medical professionals to identify injuries and illnesses. It generates finely detailed pictures of your soft tissues and bones using a sequence of X-rays and a computer. Being a noninvasive test, you can undergo this procedure in a hospital or an imaging facility.
If your healthcare provider recommends a CT scan, it's natural to feel apprehensive. However, CT scans are relatively low-risk, painless, and extremely useful in assisting medical professionals in identifying various medical disorders. Obtaining a precise diagnosis aids your healthcare practitioner in deciding on the most appropriate course of action. If you have any concerns or questions, discuss them with your provider, along with exploring other testing possibilities. Manipal Hospitals has the team of best X rays service doctors in Broadway experienced in practising safe and effective diagnostic methods.
A computed tomography (CT) scan allows medical professionals to view the inside of your body. It creates detailed images of your organs, bones, and other tissues by combining X-rays with computer technology, offering greater detail compared to a standard X-ray. It displays greater detail. A CT scan may be performed on any region of your body and is quick and painless.
A CT scan uses a small X-ray beam that revolves around a specific part of the body, capturing multiple images from various angles. A computer then processes this data to create a cross-sectional image, or "slice," of the interior of your body, similar to a single piece from a loaf of bread. By repeating this technique, the CT scan produces several slices, which the computer layers on top of one another to create a comprehensive view of your organs, blood vessels, and bones. Surgeons often use this type of scan to examine tumours from all angles, aiding in surgical planning.
CT scans assist medical professionals in identifying a range of illnesses and injuries, such as:
A few varieties of benign (noncancerous) tumours and cancer
Fracture (bones breaking)
Heart conditions
Thrombi
Gastrointestinal diseases (Crohn's disease, diverticulitis, obstructions, and appendicitis).
Kidney-shaped stones
Brain damage
Damage to the spinal cord
Haemorrhage
A CT scanner resembles a large doughnut standing on its side. During the scan, you lie on a small table with a motor that slides you into the tunnel at the centre of the scanner. Cushions and straps may be used to help you stay still, and a head cradle can be installed to keep your head immobile during a head scan. As the table moves you into the scanner, the X-ray tube revolves around you, capturing images of thin slices of your body with each rotation. You might hear humming and buzzing sounds during this process.
A CT technician operates the scanner from a separate room but has visual and auditory access to you. Communication is possible via an intercom, and at times, the technician may ask you to hold your breath to ensure you remain still, as movement can blur the images.
If contrast media is used during the scan, you may be kept under observation for a while to monitor for any adverse reactions, such as rash, swelling, itching, or difficulty breathing. After the procedure, inform your doctor if you experience any discomfort, redness, or swelling at the IV site, as this could indicate an infection or another type of reaction. Typically, no special care is required after a CT scan. Unless otherwise directed by your doctor, you can resume your regular activities and diet immediately.
A CT scan typically takes about an hour, with most of that time devoted to preparation. The actual scan is completed in less than ten or fifteen minutes. Once your provider gives you the all-clear, usually after reviewing the images to ensure their quality, you can resume your regular activities.
An MRI employs radio waves and magnets, whereas a CT scan uses X-rays.
Tendons and ligaments are not visible on a CT scan, in contrast to an MRI.
For studying the spinal cord, an MRI is preferable.
Cancer, pneumonia, abnormal chest X-rays, and brain haemorrhage, particularly following an accident, are best identified with a CT scan.
An MRI makes a brain tumour easier to see.
In situations of trauma, a CT scan may be more appropriate since it can reveal organ damage and tears more immediately.
On a CT scan, broken bones and vertebrae are easier to see.
An improved picture of the lungs and the organs in the space between the lungs may be obtained using a CT scan.
In most cases, CT scans do not cause adverse effects. However, some people may experience mild side effects from the use of contrast media. These side effects might include:
Vomiting as well as nausea
Headaches
Lightheadedness
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