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What is cancer spiral CT scan?
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- cancer spiral ct scan
CT scan is a series of detailed pictures of areas inside the body taken from different angles. The pictures are created by a computer linked to an x-ray machine. Also called CAT scan, computed tomography scan, computerized axial tomography scan, and computerized tomography. Spiral CT scan is a detailed picture of areas inside the body. The pictures are created by a computer linked to an x-ray machine that scans the body in a spiral path. Also called helical computed tomography. Scan is a picture of structures inside the body. Scans often used in diagnosing, staging, and monitoring disease include liver scans, bone scans, and computed tomography (CT) or computerized axial tomography (CAT) scans and magnetic resonance imaging (MRI) scans. In liver scanning and bone scanning, radioactive substances that are injected into the bloodstream collect in these organs. A scanner that detects the radiation is used to create pictures. In CT scanning, an x-ray machine linked to a computer is used to produce detailed pictures of organs inside the body. MRI scans use a large magnet connected to a computer to create pictures of areas inside the body. Cancer is a term for diseases in which abnormal cells divide without control and can invade nearby tissues. Cancer cells can also spread to other parts of the body through the blood and lymph systems. There are several main types of cancer. Carcinoma is a cancer that begins in the skin or in tissues that line or cover internal organs. Sarcoma is a cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. Leukemia is a cancer that starts in blood-forming tissue such as the bone marrow, and causes large numbers of abnormal blood cells to be produced and enter the blood. Lymphoma and multiple myeloma are cancers that begin in the cells of the immune system. Central nervous system cancers are cancers that begin in the tissues of the brain and spinal cord. Also called malignancy.
Preview- One can notice, medical centers that are part of the Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial began this feasibility study in September 2000 and the results were published in 2004. This feasibility study led the way to the NCI-sponsored National Lung Screening Trial (NLST), which is now tracking over 53,000 smokers and former smokers to see if those who are screened with spiral CT scans have a lower mortality rate than those who receive a chest X-ray. The PLCO also is separately examining whether annual chest X-rays, which are easier to perform than spiral CT scans, can reduce mortality from lung cancer. Lung cancer, cancer that forms in tissues of the lung, usually in the cells lining air passages. The two main types are small cell lung cancer and non-small cell lung cancer. These types are diagnosed based on how the cells look under a microscope. Colorectal, having to do with the colon or the rectum. NCI, nCI, part of the National Institutes of Health of the United States Department of Health and Human Services, is the Federal Government`s principal agency for cancer research. It conducts, coordinates, and funds cancer research, training, health information dissemination, and other programs with respect to the cause, diagnosis, prevention, and treatment of cancer. Access the NCI Web site at http://www.cancer.gov. Also called National Cancer Institute. Prostate is a gland in the male reproductive system. The prostate surrounds the part of the urethra (the tube that empties the bladder) just below the bladder, and produces a fluid that forms part of the semen. Lung, one of a pair of organs in the chest that supplies the body with oxygen, and removes carbon dioxide from the body. Screening, checking for disease when there are no symptoms. Since screening may find diseases at an early stage, there may be a better chance of curing the disease. Examples of cancer screening tests are the mammogram (breast), colonoscopy (colon), and the Pap test and HPV test (cervix). Screening can also include checking for a person`s risk of developing an inherited disease by doing a genetic test. Chest x-ray is an x-ray of the structures inside the chest. An x-ray is a type of high-energy radiation that can go through the body and onto film, making pictures of areas inside the chest, which can be used to diagnose disease. Ovarian, having to do with the ovaries, the female reproductive glands in which the ova (eggs) are formed. The ovaries are located in the pelvis, one on each side of the uterus. Mortality is the state of being mortal (destined to die). Mortality also refers to the death rate, or the number of deaths in a certain group of people in a certain period of time. Mortality may be reported for people who have a certain disease, live in one area of the country, or who are of a certain gender, age, or ethnic group. X-ray is a type of radiation used in the diagnosis and treatment of cancer and other diseases. In low doses, x-rays are used to diagnose diseases by making pictures of the inside of the body. In high doses, x-rays are used to treat cancer.
- It`s possible to presume that, this feasibility study led the way to the NCI-sponsored National Lung Screening Trial (NLST), which is now tracking over 53,000 smokers and former smokers to see if those who are screened with spiral CT scans have a lower mortality rate than those who receive a chest X-ray. The PLCO also is separately examining whether annual chest X-rays, which are easier to perform than spiral CT scans, can reduce mortality from lung cancer. The PLCO trial began in 1994 and is following nearly 155,000 men and women.
- It seems that, these machines are routinely used for staging lung and other cancers to determine how advanced the cancer is after diagnosis. But recently, some hospitals have begun promoting spiral CT scans to smokers for early detection of lung cancer, despite the lack of evidence that such scans can decrease mortality. Each scan costs $300 to $1,000. Staging, performing exams and tests to learn the extent of the cancer within the body, especially whether the disease has spread from the original site to other parts of the body. It is important to know the stage of the disease in order to plan the best treatment. Diagnosis is the process of identifying a disease, such as cancer, from its signs and symptoms.
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