CT Computed Tomography Scan, or in layman's language known as CT Scan, is a detailed body scan done to get pictures of the inside of a human body. The procedure is performed to identify the internal issues of the human body and identify the right area and form of treatment. It helps to get detailed images of different body parts, fat, or tissues for proper and precise treatment.

The procedure involves using an X-ray and computer imaging to get detailed images of the internal body. The process provides a clear picture of the internal body, which is not always possible in an X-ray. The patient must be alert about the precautions taken before the procedure. A diabetic patient or a patient suffering from specific allergies must follow the mandatory regulations doctors suggest before the computerised tomography scan begins. The pre-scan rules also differ in the scan using or without contrast.

Types of CT Scan

CT Angiography- CT angiography, an angiogram, is a detailed scan to identify different heart issues. The scan helps to detect damage caused to the blood vessels or to identify any possible heart blockage. Before the procedure, the doctor injects dye into the blood vessels for higher visibility of blood flow. A CT technologist performs the process.

CT Angiography

CT Abdomen Scan- The CT imaging scan involves pictures of the different digestive tract organs, such as the colon, spleen, appendix, and liver. The scan helps to identify internal bleeding in the abdominal area or to diagnose tumours in case of serious injuries.

CT scan of abdomen

CT Bone Scan- A CT bone scan helps identify bone issues in depth and detail. The scan provides the type of information which may not be possible in an ordinary x-ray. A CT bone scan offers a clearer image of tendons and muscles. The scan is also helpful in determining issues such as bone cancer, which can be challenging to identify in its initial stages.

CT knee scan

Purpose of CT Scan

Helpful to Identify Complex Bone and Joint Problems- A CT scan is useful for doctors to get clear images of areas near bones, such as tendons and tissues. Hence, doctors prefer the procedure over an x-ray. The scan is also helpful in identifying issues such as bone cancer, which is not an easy task to detect in its initial stages, leading to the quick spread of the disease and worsening the situation.
Indicates Complex Heart Issues- Another advantage of a CT scan is that it helps doctors identify and treat complex heart issues at the right time. The computerised tomography scan helps get clear images of minute blood vessels and determine the blockage in the whole organ. Hence, in case of significant heart issues, a CT angiography is highly suggested by doctors.
Helpful to Identify Internal Bleeding- Internal bleeding is an issue that needs immediate attention to cease significant health issues in its initial stages. The scan helps identify the area of internal bleeding immediately, allowing doctors to take the required medical action immediately.

Procedure and Results of a CT Scan

Mentioned below are the steps followed to perform a CT scan:

Contrast is given to the required patients orally, rectally, or with the help of an IV line to inject the liquid.
The patient is asked to lie on the scan table, which proceeds towards the scanning machine.
The procedure begins with X-rays passing through the patient with a clicking sound for a short time.
The X-rays are absorbed by the body's tissues, which the scanner detects. The information is then forwarded to the computer to turn it into an image, which a radiologist further interprets.
The procedure involves the patient to remain still. Patients can also be asked to hold their breath in certain instances for a smooth process.
Any inconvenience, such as nausea, vomiting, headache, or issues in breathing felt by a patient during the procedure, should be immediately reported.
After the procedure, the patient is removed from the scanning machine. They were removed if any IV lines were attached to the patient for the process.

Results of a CT Scan

24 to 48 hours is the minimum time required to get the results of a CT scan. A radiologist reads and interprets the scan to prepare a detailed report of the findings. In emergencies in a hospital, the reports may also be delivered within an hour.

Conclusion

A CT Computed Tomography Scan helps get detailed and precise images of the body's internal organs. The scan is beneficial to identify serious health issues such as tumours, heart blockage, or internal bleeding. The scan is also helpful for patients with severe problems to help doctors identify the stage of the issue and the correct treatment to cure it.

Frequently Asked Questions About CT scan

Q1. How is a computed tomography scan helpful over an X-ray?
A1. An X-ray helps identify simple and complex fractures and other similar issues. On the other hand, a CT scan helps get detailed and clear images of the problematic area of the organ.

Q2. Which health situations usually require a CT scan?
A2. Health issues like identifying a tumour, blockage in the heart, or problems with tendons or tissues require a CT scan to get a more transparent and precise image.

Q3. What are the different types of CT scans?
A3. Cardiac CT, neck CT, pelvic CT scan, and CT scan kidneys are also some forms of CT scans.

Q4. Is CT scanning a safe procedure?
A4. CT scanning is absolutely a safe procedure. The radiation beams are set low for children and aged people.

Q5. What does CT scanning with contrast mean?
A5. A CT scan with contrast involves giving a patient a liquid for clear visibility of blood flow on the scanning machine for easy identification of the issue.

References:

https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/computed-tomography-ct-scan
https://www.webmd.com/cancer/what-is-a-ct-scan