Diagnostic Imaging Study Guide (A+ Guaranteed)

What is a radiograph? correct answers a visible photographic record on film produced by x-rays passing through an object what is an x-ray? correct answers a form of electromagnetic radiation similar to visible light but of a shorter wavelength what is electromagnetic radiation? correct answers a method of transporting energy through space and is distinguished by its wavelength, frequency, and energy what is radiant energy? correct answers travels in a waveform along a straight path and is measured by its wavelength what is a wavelength? correct answers in a series of waves the distance between two consecutive, corresponding points on a wave what is a frequency? correct answers measured by the number of cycles of the wave that pass a stationary point per second what is elongation? correct answers lengthening of a view due to angle technique what is foreshortening? correct answers shortening of a view due to angle technique what is a horizontal technique? correct answers standing a patient upright and taking a horizontal beam radiograph can be helpful in confirming the presence of air or fluid in a body cavity what is a skyline view? correct answers technique used to decrease superimposition of structures, ex: equine carpus what is the perpendicular technique? correct answers x-ray beam is perpendicular to the long axis of the bone and x-ray cassette if the bones are not perpendicular to the beam... correct answers the bones will appear foreshortened if the cassette is not perpendicular to the beam... correct answers the bones will appear elongated what is the parallel technique? correct answers the film/sensor can be placed parallel to the teeth being radiographed what is the bisecting angle technique? correct answers prevents distortion, placing the film parallel to the structure of interest and perpendicular to the x-ray beam what does the collimator do? (2) correct answers controls the size of the primary beam, reduces scatter radiation