Radiography


The process of obtaining film records (radiographs) of internal structures of the body. Radiography is made possible by X-rays passing through the body to act on a specially sensitized film.

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  • Radioimmunoassay

    A very sensitive, specific laboratory test (assay) that uses radiolabeled and unlabeled substances in an immunological (antibody-antigen) reaction.

  • Radioinsensitive

    Not sensitive to X-rays and other forms of radiant energy. For example, if a tumor is radioinsensitive, it cannot be successfully attacked by using radiation therapy. The opposite of radioinsensitive is radiosensitive.

  • Radioiodine

    An isotope of the chemical element iodine that is radioactive. Radioiodine is used in diagnostic tests as well as in radiotherapy of an hyperactive thyroid gland (hyperthyroidism), most often due to Graves’ disease. For hyperthyroidism, radioiodine is administered in capsule form on a one- time basis. It directly radiates thyroid tissues, thereby destroying them. It […]

  • Radioisotope

    A version of a chemical element that has an unstable nucleus and emits radiation during its decay to a stable form. Radioisotopes have important uses in medical diagnosis, treatment, and research.

  • Radiologic

    Having to do with radiology.


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