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Carlton - Computed Tomography questions well answered
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Carlton - Computed TomographyProduces a digital tomographic image from diagnostic x-rays - correct answer ✔✔Computed tomography
The basic principle of CT involves ___ an image received from a __ scan projection of the patient's body
and then back-projecting the image through mathematical algorithms. - correct answer ✔✔Digitized, slit
CT scanning is usually performed ______ sections, digital processing of information can produce _____
and _____ sections - correct answer ✔✔Transverse,sagittal, coronal
The CT X-ray beam is confined to a slit, much ____ _____ is eliminated from the image. - correct answer
✔✔Scatter radiation
The combination of the transverse sectioning procedure with slit scanning produces an image of better
____ than other imaging methods. - correct answer ✔✔Quality
Primarily, the image differentiates varies types of ___ ____. - correct answer ✔✔Soft tissue
CT provides more ______ information than any other ionizing radiation imaging modality. - correct
answer ✔✔Diagnostic
Invention of the CT credited to who for his work in 1970-1971 - correct answer ✔✔Hounsfield
Preliminary work on CT done by _____ in 1961 and _____ in 1963 - correct answer ✔✔Oldendorf,
Cormack
Hounsfield, Oldendorf, and Cormack all based their work on the inventions of the Austrian
mathematician ___, who proved in 1917 than an image of a 3-D object could be produced from its
mathematical projections. - correct answer ✔✔Radon
, Early CT units were capable of only ___ tomography, and the term CAT scanning became popular. -
correct answer ✔✔Axial
What scanner is considered to be the first - correct answer ✔✔EMI
A pencil thin beam of radiation that strikes a single detector - correct answer ✔✔Ray
A set of rays striking a detector array( a group of detectors); this is also called a view - correct answer
✔✔Projection
Generation of CT scanner designed for examination of the head only. - correct answer ✔✔First
Generation that used Linear scan and rotate; 180 scans, 1 degree rotations - correct answer ✔✔First
Generation that used paired detectors; 160 measurements per scan - correct answer ✔✔First
Generation that has 4.5-5 minute scan time - correct answer ✔✔First
Generation that used single ray pencil beam and a single detector - correct answer ✔✔First
Generation that FIRST used single-projection, fan shaped beam; permitting full body scan - correct
answer ✔✔Second
Generation that used up to 30 detectors - correct answer ✔✔Second
Generation that had 10-90 second scan time - correct answer ✔✔Second
Generation that used a linear scan and rotate with 6 scans, 30 degree rotations - correct answer
✔✔Second
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