Contemporary definitions for backdraft. noun. a sweep of air backwards; also, a condition in a fire where oxygen is depleted and the fire dies down until a door is opened and the fire flares violently from the intake of oxygen.
CT Internal Auditory Canal. CT Scan of the Internal Auditory Canal. A computed tomography scan (CT or CAT) of the internal auditory canal, also called cross-sectional imaging, allows the radiologist to look at different levels, or slices, of the skull bones leading from the ear using a rotating X-ray beam.
CT of the head is an X-ray-based procedure in which images (pictures) are taken of the entire brain. CT scans of the head/brain can provide more detailed information about brain tissue and brain structures than standard X-rays of the head. Therefore, this can provide more information related to injuries and brain disease.