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CT Scan (Computerized Axial Tomography)Read the CT Scan (Computerized Axial Tomography) article » What is a CT scan?A computerized axial tomography scan is an x-ray procedure that combines many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the internal organs and structures of the body. Computerized axial tomography is more commonly known by its abbreviated names, CT scan or CAT scan. A CT scan is used to define normal and abnormal structures in the body and/or assist in procedures by helping to accurately guide the placement of instruments or treatments. A large donut-shaped x-ray machine takes x-ray images at many different angles around the body. These images are processed by a computer to produce cross-sectional pictures of the body. In each of these pictures the body is seen as an x-ray "slice" of the body, which is recorded on a film. This recorded image is called a tomogram. "Computerized Axial Tomography" refers to the recorded tomogram "sections" at different levels of the body. Imagine the body as a loaf of bread and you are looking at one end of the loaf. As you remove each slice of bread, you can see the entire surface of that slice from the crust to the center. The body is seen on CT scan slices in a similar fashion from the skin to the central part of the body being examined. When these levels are further "added" together, a three-dimensional picture of an organ or abnormal body structure can be obtained. Why are CT scans performed?CT scans are performed to analyze the internal structures of various parts of the body. This includes the head, where traumatic injuries, (such as blood clots or skull fractures), tumors, and infections can be identified. In the spine, the bony structure of the vertebrae can be accurately defined, as can the anatomy of the intervertebral discs and spinal cord. In fact, CT scan methods can be used to accurately measure the density of bone in evaluating osteoporosis. Occ... Recommended Reading Related to CT Scan (Computerized Tomography)Allergies: Allergies to MedicationsMany drugs can cause adverse side effects, and certain medicines can trigger allergic reactions. In an allergic reaction, the immune system mistakenly responds to a drug by creating an immune response against it. The immune system recognizes the drug as a foreign substance and the body produces certain chemicals, such as large amounts of histamine in an attempt to expel the drug from the body. What Are the Symptoms of Drug Allergy?Symptoms can range from mild to life-threatening. Even in people who aren't allergic, many drugs can cause irritation, such as an upset stomach. But during an allergic reaction, the release of histamine can cause symptoms like hives, skin rash, itchy skin or eyes, congestion, and swelling in the mouth and throat. A more severe reaction may include difficulty breathing, blueness of the skin, dizziness, fainting, anxiety, confusion, rapid pulse,... Other Related CAT Scan ArticlesEmergency Contact for Evanston
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Low Blood Pressure
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Rash
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Abdominal Pain
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Kidney Stones
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Kidney Failure
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Pinched Nerve
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Sciatica
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Appendicitis
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Pregnancy (Stages - Trimesters of Pregnancy)
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Kidney Infection
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Liver Disease
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Diverticulitis (Diverticulosis)
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Swollen Lymph Nodes
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Blood Clots
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Hives
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Dizziness
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Lower Back Pain
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Sinus Infection
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Brain Tumor
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Ovarian Cancer
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Liver Cancer
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Pancreatic Cancer
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Intestinal Gas
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Necrotizing Fasciitis
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Diabetes (Type 1 and Type 2)
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Stroke
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Pulmonary Embolism (Blood Clot in the Lung)
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