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What is a CT scan to detect esophageal cancer?

Daniel Labow, MD
Surgical Oncology
A type of x-ray that uses a computer to make pictures of structures inside the body. A computed tomography (CT), a thin X-ray beam rotates as small detectors measure the amount of X-rays which make it through the patient or particular area of interest. A computer analyzes the data to construct a cross-sectional (axial) image. These images can be stored, viewed on a monitor, or printed on film. In addition, three-dimensional models of organs can be created by stacking the individual images, or "slices".

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