X-rays are most often used to diagnose issues with bones including fractures, dislocations and degeneration. Dense objects like bone look white in the image because they block more of the rays. X-ray imaging produces pictures by sending rays through the body. CT scans can image bones, blood vessels, and soft tissue all at once, and can be used to improve the diagnosis and treatment of cancer, guide the treatment of injuries, and provide important information on the progression of heart disease or a stroke. In some instances, dye is injected into the bloodstream to produce contrast and greater detail in the resulting images. When Is a CT Scan Useful?Ī CT scan is an advanced form of X-ray that produces 360-degree images of organs and structures in the body. Computed tomography scans (often abbreviated as a CT or CAT scan) and X-ray imaging are two common procedures that enable them to diagnose illnesses or injuries. Doctors use many types of imaging technology to help them assess the condition of an organ or an area of the body.
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