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CT HOMEWORK QUESTIONS WITH 100% CORRECT ANSWERS.
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CT HOMEWORK QUESTIONS WITH 100% CORRECT ANSWERS.
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CT HOMEWORK QUESTIONS WITH100% CORRECT ANSWERS.
The process related to the first computed tomography scanner was called:
computer-assisted tomography.
reconstructive tomography.
Hounsfield tomography.
computerized transverse axial scanning. ANS - computerized transverse axial scanning.
Which of the following sources of radiation were used in Hounsfield's first primitive CT scanner?
x-ray
americium
radium
radon ANS - americium
First generation scanners were only capable of imaging the:
head/brain.
extremities.
chest, abdomen and pelvis.
A and B are correct. ANS - head/brain.
Which of the following types of scanners used water bags?
first generation only
first and second generation
first, second and third generation
Water bags have never been used with CT scanning. ANS - first generation only
,First generation CT scanners used _____ beam scanning.
cone
pencil
fan
pinpoint ANS - pencil
The term "translation" is associated with _____ generation scanners.
first
second
third
A and B are correct. ANS - A and B are correct.
Second generation scanning employed:
a pencil beam/a single detector.
a fan beam/multidetectors.
more indexing (compared with first generation scanners)
B and C are correct. ANS - a fan beam/multidetectors.
Which generation of CT scanners was the first to use a curved array of rotating detectors?
second
third
fourth
fifth ANS - third
Fourth generation scanners employed detectors that were:
curved/nonrotating. linear/rotating curved/rotating. linear/nonrotating. ANS - curved/nonrotating.
Nutating refers to the process of:
tilting the detector ring.
, tilting the x-ray tube.
tilting the gantry.
translation. ANS - tilting the detector ring.
Which generation of CT scanners is associated with the term "EBCT" and the use of an electron beam
gun?
seventh
sixth
fifth
fourth ANS - fifth
In sixth generation CT scanners, which of the following elements rotate around the patient?
the x-ray tube
detectors
x-ray tube and detectors
No choices are correct. ANS - x-ray tube and detectors
Which of the following terms is associated with seventh generation spiral-helical technology?
multisection scanner
multidetector scanner
multiple detector array scanner
All choices are correct. ANS - All choices are correct.
Which of the following x-ray beam geometries is used by modern, multidetector CT scanners?
pencil beam
cone beam
fan beam
pinpoint beam ANS - cone beam
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