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How do CT scans work?

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They use a narrow X-ray beam that circles around one part of your body. This provides a series of images from many different angles. The computer stacks these scans one on top of the other to create a three-dimensional (3D) image. This can give your doctor a better view of your organs, bones, or blood vessels. For example, a surgeon may use this type of scan to look at all sides of a tumor to prepare for an operation.

From: What Is a CT Scan? WebMD Medical Reference

SOURCES:

National Institute of Biomedical Imaging and Bioengineering: “Computed Tomography.”

Johns Hopkins Medicine: “Computed Tomography (CT or CAT) Scan of the Abdomen.”

National Cancer Institute: “Computed Tomography (CT) and Cancer.”

Food and Drug Administration: “Computed Tomography (CT).”

Mayo Clinic: “CT Scan.”

PLOS One : “Consistent Surgeon Evaluations of Three-Dimensional Rendering of PET/CT Scans of the Abdomen of a Patient with a Ductal Pancreatic Mass.”

American Cancer Society: “CT Scan for Cancer.”

Nature Communications : “Mutational Signatures of Ionizing Radiation in Second Malignancies.”

Reviewed by Louise Chang on December 22, 2018

SOURCES:

National Institute of Biomedical Imaging and Bioengineering: “Computed Tomography.”

Johns Hopkins Medicine: “Computed Tomography (CT or CAT) Scan of the Abdomen.”

National Cancer Institute: “Computed Tomography (CT) and Cancer.”

Food and Drug Administration: “Computed Tomography (CT).”

Mayo Clinic: “CT Scan.”

PLOS One : “Consistent Surgeon Evaluations of Three-Dimensional Rendering of PET/CT Scans of the Abdomen of a Patient with a Ductal Pancreatic Mass.”

American Cancer Society: “CT Scan for Cancer.”

Nature Communications : “Mutational Signatures of Ionizing Radiation in Second Malignancies.”

Reviewed by Louise Chang on December 22, 2018

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