Radiographic positioning terminology | 95 Questions And Answers Already Graded A+

Radiographic positioning - radiographically demonstrate or visualize specific body parts on image receptors (IRs) Terms approved and published by the ARRT. Methods - named positions, named for person who first described a specific position: Towne, Waters, Caldwell Radiograph - An image produced by x-rays on an image receptor. If produced with film-screen technology - it is stored and displayed on film. If produced digitally, it is viewed and stored on computers. Radiography - Process and procedures of producing a radiograph Radiograph vs. X-ray film: - radiograph - the recording medium AND the image x-ray film - physical piece of material on which a nonprocessed (latent) radiographic image is stored. Image receptor - (IR) - the device that captures the radiographic image that exits the patient; film/screen cassettes and digital acquisition devices Central ray - (CR) - the center-most portion of the x-ray beam emitted from the x-ray tube; has the least divergence Radiographic exam 5 functions - 1. position body and align with the IR and CR. 2. Select radiation protection measures 3. Select exposure factors (radiographic technique) on the control panel (generator) 4. Patient instructions related to respiration and initiation (making) of the exposure 5. Processing of the IR Body planes - Sagittal - divides into right and left partsmidsagittal - equal right and left parts Coronal - divides into anterior and posterior parts midcoronal - equal anterior and posterior parts Horizontal (axial) - transverse plane at right angle - superior and inferior portions Oblique - longitudinal or transverse plane at an angle or slant - not parallel Section - Cut or slice image of body part. Planes of the skull - Base plane Occlusal plane Body surfaces and parts - Posterior/dorsal - back half Anterior/ventral - front half, tops of feet, palms Plantar - surface of foot (sole) Dorsal foot - top of foot - aka dorsum Dorsal hand - back of hand Palmar - palm of hand Radiographic projection - the direction or the path of the CR of the x-ray beam as it passes through the pt., projecing an image onto the IR.