CHAPTER 37 – TOMOGRAPHY 100% PASSED

CHAPTER 37 – TOMOGRAPHY
100% PASSED

, CHAPTER 37 – TOMOGRAPHY 100%
PASSED
tomography - correct answersa radiographic technique that employs motion to show anatomical
structures lying in a plane of tissue while blurring or eliminating the detail in images of structures
above & below the plane of interest


What plane of the body does traditional tomography demonstrate? - correct answersCoronal
sections



What are the most common modern exams typically involving tomography? - correct
answersRoutine examination of the kidneys during intravenous pyelography (IVP)



Tomographic Principle - correct answersBased on synchronous movement of 2 of the 3 elements in a
tomographic system; most units synchronize the movements of the x-ray tube & the IR in opposite
directions around a stationary fulcrum during the exposure.



3 elements involved in the tomographic principle? - correct answersX-ray Tube

Object

IR



fulcrum - correct answerspivot point on which tube & IR move



What maintains alignment of the tube & IR? - correct answersA rigid attachment-a metal rod



Where should the object being imaged be placed? - correct answers@ the fulcrum



What makes some structures sharp & other blurred? - correct answersA object @ the fulcrum is
sharp b/c it has not moved in its relationship to the tube & the IR during the exposure. However,
objects above, below, or next to the fulcrum will be blurred due to motion.



What terms can be used, should be avoided, & should be used to describe a section of tissue in
tomography? - correct answersThe radiographer should strive to adhere to the term 'section' while
avoiding 'cut' & 'slice'