WHAT IS CT SCAN?

A computerized tomography (CT) scan uses an x-ray machine and computer that combines a series of x-ray images taken from different angles around your body and creates cross-sectional images of the bones, organs and soft tissues inside your body. A CT scan can be used to visualize nearly all parts of the body and is used to diagnose disease or injuries as well as to plan medical, surgical or radiation treatment.

A special dye called contrast material is needed for some CT scan to help highlight the areas of your body being examined. The radiocontrast agent blocks x-rays and appears white on images which can help highlight blood vessels, intestines or other structures. Contrast material might be given to you through mouth, by injection or by enema.

CT scan Angiography:

Computed Tomography Angiography (CTA) uses a high-tech X-ray scanner and computer that examine and provide detailed, 3D images of the moving heart and major blood vessels disease or related conditions such as aneurysm or blockages.

Tell your doctor if there is a possibility of you are pregnant and discuss any recent illness, medical conditions, medications you are taking and allergies.

CT angiography is helpful in examining blood vessels and the organs supplied by them in various body parts including Brain, Neck, Heart, Chest, Abdomen, Pelvis, Lower limb, and Upper limb.

CT angiography used to diagnose and evaluate many diseases of blood vessels and related conditions such as Aneurysm, Blockages, and Blood clots.

It is also used to diagnose congenital abnormalities of the cardiovascular system including heart vascular malformations, injuries, tumors, etc.

CT scan venogram:

A venogram is a test that lets your health care provider see the veins in your body especially in your legs, and then the special dye is injected. A venogram is used to assess the status of system of veins or a vein or find blood clots called Deep Vein Thrombosis (DVT) within the veins.

WHY IS CT SCAN DONE?

• Diagnose muscle and bone disorders such as bone tumors and fractures.
• Identify the position of a tumor, infection or blood clot.
• Direct treatment such as surgery, biopsy and radiation therapy
• Detect and monitor diseases and conditions such as cancer, lung nodules, and liver masses.

HOW IS CT SCAN DONE?

• On the CT scan machine, you need to lie on the motorized table. Straps and pillows may be used to help you stay in position.
• A technologist in a separate room can see and hear you and you will be able to communicate with the technologist via intercom. The technologist may ask you to hold your breath at certain points to avoid blurring of images.
• After the exam, you can continue with your normal daily routine. If you were given contrast material you may receive special instructions like do not eat for 2 hrs after scan.

Tips before going to the procedure:

• Take off some or all of your clothing and wear a gown.
• Remove metal objects such as belts, jewellery, dentures and eyeglasses which might interfere with image results.
• Avoid drinking or eating for a few hours before your scan.