Chest CT
What is a Chest CT Scan?
A Chest Computed Tomography (CT) Scan is a type of imaging test that uses X-rays and computer technology to produce detailed images of the chest, including the lungs. CT scans of the chest can help in diagnosing various diseases and conditions, including tumors, cysts and infections. It can also help determine whether a patient has heart problems or an enlarged heart.
Preparation for a Chest CT Scan
Before having a Chest CT scan, it is important for a patient to speak to their doctor about any allergies they may have or if they are pregnant. A Chest CT scan may require some pre-scan preparation, such as fasting from food and drink for four to six hours before the scan. Depending on the type of scan, the patient may also need to drink a contrast material to make the images look clearer.
Procedure of a Chest CT Scan
During a Chest CT scan, the patient will be asked to lie still on the CT scan table and a machine will move around the patient, taking measurements and images. While the machine is working, the patient may hear noise and the images will appear on the monitor. The images can be manipulated in different ways to change their appearance and allow the doctor to see the organs and other structures more clearly. After the scan is finished, the patient may need to be monitored for a short time to make sure they do not have any reactions to the contrast material.
Types of Chest CT Scans
Chest CT Scans come in many different types and include:
- Thin-slice CT Scan - Thin-slice CT scans take cross-sectional images from multiple angles, which allows the doctor to get a more detailed view of the organs they are analyzing.
- High-resolution CT Scan - High-resolution CT scans use a higher dose of X-rays to create more detailed images.
- Multi-slice CT Scan - Multi-slice CT scans use multiple slices to create 3D images of the area scanned, allowing the doctor to analyze the organs more closely.
- Cone-beam CT Scan - Cone-beam CT scans use multiple x-ray beams to scan the entire chest region, which helps to provide the doctor with a better understanding of the structure and function of the lungs.
Risks of a Chest CT Scan
A Chest CT scan is typically a safe procedure, but there may be some risks. The radiation used in a CT scan can cause cell damage, which can lead to an increased risk of cancer. The contrast material used in some CT scans can cause allergic reactions and kidney damage. Patients should discuss any risks associated with a Chest CT scan with their doctor.
Why Have a Chest CT Scan?
A Chest CT scan is used to diagnose and monitor various conditions that affect the chest, such as a lung infection or emphysema. It can also help determine the cause of chest pain, shortness of breath, or coughing. A Chest CT scan can also be used to examine the heart and lungs and to identify any abnormalities or underlying diseases.
When to Have a Chest CT Scan
A Chest CT scan may be recommended if a patient is experiencing chest pain, shortness of breath, or suspicious symptoms associated with a heart or lung condition. It may also be recommended if a patient has been diagnosed with a condition that affects the chest, such as lung cancer or emphysema.