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Ch. 1 Basic Principles of CT reviewed questions with correct answers.
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Ch. 1 Basic Principles of CT reviewedquestions with correct answers.
in 1972, who demonstrated CT? ANS - Hounsfield
in 1975, the first __ was done. ANS - whole body CT scan
in 1979, ___ and ___ shared the Nobel Prize in Medicine for the development of CT. ANS - Godfrey
Hounsfield (an engineer) and Alan Cormack (a medical physicist)
What is the area called where the radiographer sits while performing a CT scan? ANS - the "hot seat"
What does "CT" stand for? ANS - Computed Tomography
CAT: Computerized Axial Tomography
CAT: Computer Assisted Tomography
What does the term "tomo" mean? ANS - to cut, section, or layer. From the Greek word tomos
The first CT scanners were limited. The first CT scanner only did ____ CT's. Early scanners produced only
axial cuts or slices. ANS - head
What are the disadvantages of conventional radiographic tomography? ANS - the image has
superimposed anatomy, scatter radiation reduces contrast resolution, the tube and image receptor both
move during the long exposure, therefore the moving of radiation source and IR helps to blur out tissues
above and below the focal plane, and the image is very blurry and has limited diagnostic value.
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