Yashoda Hospitals > Diagnostics > CT Scan

What is a CT scan?

A CT scan stands for a Computed Tomography scan. It is an imaging method in radiology. It uses X-rays and a computer to produce images of your internal organs such as bones, tissues, etc. A CT scan offers more clarity and detailed images than a regular X-ray. It is a non-invasive procedure, meaning it is done without any surgical interventions in your body.

A CT scan is a fast, painless, and precise procedure. Its best feature is its ability to simultaneously evaluate and take images of bones, internal organs, and blood vessels. During emergencies, the scan may help identify internal injuries and bleeding. It is a cost-effective method, making it more accessible.

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    Frequently Asked Questions

    A CT scan is used to obtain detailed images of the internal body for investigative and diagnostic purposes. It helps identify bone and joint disorders and fractures. It can also diagnose tumours and internal bleeding that may lead to blood clots, heart, liver disease, or brain dysfunction.

    It may take up to 24 hours for your CT scan results to arrive from the radiologist, who specialises in interpreting and reviewing the findings of your scan. They may help explain and diagnose the issues that may arise in your scan, such as bone or joint disorders. Heart disorders, liver diseases, bleeding, and internal injuries can also be diagnosed through CT scans.

    CT scans help diagnose multiple disorders or even injuries like fractures. It can also detect cancer, tumours, heart disease, etc., by revealing internal issues. Moreover, CT scans help doctors monitor procedures like biopsy, surgery, etc.

    During a CT scan, you have to lie down in a tunnel-like device. The interiors of the CT scan machine revolve and take radiographs from multiple angles. They take pictures of different cross-sections of the body. These pictures are then uploaded to a computer that creates high-definition images.

    A CT scan with contrast involves ingesting a special dye called contrast material, which blocks X-rays. This may appear white or opaque in pictures. It helps highlight specific areas of the body like blood vessels, intestines, etc.

    Usually, a CT scan takes about an hour. This involves both the preparation and procedure time. The CT scan itself takes about 10 to 30 minutes.

    You are allowed to eat or drink before a CT scan without contrast. You may also take prescribed medications before the exam. However, if a CT scan is with contrast, you must avoid eating and drinking for at least three hours before your CT scan.

    The results of a CT scan can diagnose bone and joint disorders, complex fractures, etc. It may also identify internal bleeding, heart, liver disease, and more.

    Yes, it is completely normal to feel tired after a CT scan. You may feel fatigued; however, these side effects will disappear within 24–48 hours. Having said that, an immunocompromised person may take longer to recover.

    Research shows that the radiation from a CT scan may affect one’s DNA and could lead to cancer. However, the likelihood of this is extremely low. Some individuals may be allergic to the ingredients in the dye that could cause a rash. Your doctor will put you under observation after your CT scan for a few minutes to rule out any side effects or complications. It is advisable to inform your doctor if you have any allergies so that they can be dealt with in advance. 

     

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