What is a CT scan?
CT Scan Services: A CT scan is a procedure that produces images through the use of computers and x-rays. These images being produced are also known as slices, which means they are cross-sectional and include both horizontal and vertical images of the body. A CT scan is very beneficial in the fact that creates more detailed pictures than x-rays, and it can create images of any body part. For example, a CT scan can reveal pictures of organs, muscles, the skeletal system and much more.
In CT scan, an x-ray beam is going in circles around the body. With the circle beams going around the body, certain structures of the body are getting a greater look, and there is much more detail being provided. Once multiple x-rays are taken is taken, the information is sent to a computer and is displayed in a two-dimensional image. If the radiologist has the latest technology, they may have software that provides a three-dimensional image.
Before a CT scan is done, a radiologist/technician will tell their patient whether or not they need to take a certain substance orally, or get a substance injected through an IV. This substance is known as “contrast”, and is used in order to see the part of the body being studied much more clearly. If the physician does recommend a contrast procedure, the patient may have to fast for a certain time period beforehand.
It is important to consult with the physicians whether you have any history of allergy to any medicines or history of allergy with previous contrast studies. It’s also important for patients with health concerns or for pregnant women to notify their physician, as this may create complications. This procedure lasts 10-20 minutes on average depending on the type of study, so it’s important for patients to tell their physician if they’re concerned about following through. Patients who suffer from claustrophobia or anxiety may be given a sedative.
Computed tomography offers so many great benefits to patients, some being it can look further into internal bleeding, diagnose certain abnormalities and search for other injuries to the body.
Since radiation is used during an x-ray, it’s best for patients to consult with their physician if they have any concerns on the amount of radiation being used.
Important Reminder Before the Exam Begins:
Patients should notify their physician if they are pregnant, have anxiety, and/or are allergic to iodine.
How are CAT Scans Performed?
Each facility may have their own protocols, but most follow these general guidelines:
- A CT scan can be done as an inpatient care or outpatient care.
- Before the CT scan begins, the patient will have to remove all jewelry, clothes and other items that may get in the way of the procedure.
- Patients that are in need of a contrast procedure will be given an IV or be given an oral medication to swallow.
- Patients will be placed in a machine with a circular opening.
- Patients will always be monitored by the staff, and the scanner will be equipped with speakers in order to communicate with the technologist at all times.
- X-rays will be taken as the scanner circles around the patient.
- X-rays will be shown on the computer screen after the x-rays are absorbed.
- Patients must remain as still as possible at all times during the procedure.
- Patients may be asked by the radiologists to wait for their results and may be told they need additional examinations in order to get better images.
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