TBR-CT - Training From The BACK Of The Room Certified Trainer
TBR-CT - Training from the BACK of the Room Certified Trainer
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CT final MISC Questions and Answers 100% Solved
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TBR-CT - Training from the BACK of the Room Certified Trainer
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TBR-CT - Training From The BACK Of The Room Certified Trainer
Exam of 5 pages for the course TBR-CT - Training from the BACK of the Room Certified Trainer at TBR-CT - Training from the BACK of the Room Certified Trainer (CT final MISC)
contrast resolution - answer the ability of a system to distinguish between two objects
with similar attenuation values
Scintillation - answer this type of detector is composed of cesium iodide crystals that
emit light when struck by an x-ray photon
Pitch - answer The distance that the patient travels through the CT scanner, the ratio of
tube movement to Section thickness
Indexing - answer The positioning of the table, must be reproducible within 1 mm
Voxel - answer The volume of each pixel element
Detector - answer Attenuates the radiation lies opposite the X-ray tube
Windows - answer Range of numbers controlling the contrast, +1,000 to -1000
Scalogram - answer Term for the Scout image of the area to be scanned
Wide dynamic range - answer Digital is much broader in terms of Shades of Grey as
compared to film. What is this referred to as
Cadmium tungstate - answer The preferred CT scintillation detector Crystal due to its
minimal Afterglow
Gantry - answerThe donut shaped structure and the patient aperture in a scanner
2 collimators used in CT - answerReduce scatter, how many are in CT?
Hounsfield units - answerThis unit assigns specific values to different types of tissue
based on their attenuation properties
spiral - answer6th generation CT scanners, allows continuous rotation of the X-ray tube
and detectors around the patient
Translation - answerTerm for the synchronization of the X-ray tube and detector while
scanning a patient
Linearity - answerRelationship of CT numbers to the attenuation coefficient of object
imaged
, ROI (region of interest) - answerDisplay function that defines an area on image by size
shape and location
D. Transaxial - answerCT scanning provides a(n)________ view of the body.
A. Axial
B. Linear
C. Longitudinal
D. Transaxial
D. All of the above - answerThe Gantry of a spiral CT scanner contains
a. The tube
B. The detectors
C. High voltage circuit
D. All of the above
B. A high heat capacity - answerThe X-ray tube in a CT scanner has
a. Two cathodes
b. A high heat capacity
C. A high-frequency anode
d. A stationary anode
A. Pencil or parallel - answerThe X-ray beam in the original CT scanner is shaped into a
_____ beam.
A. Pencil or parallel
B. Circular
C. Fan
D. Hypocycloidal
D. Adjustable collimators - answerThe thickness of a CT slice is controlled by the
a. Target angle
B. Filament size
C. Patient sickness
D. Adjustable collimators
D. All of the above - answerDetectors used in CT scanners are
a. Solid state
b. Gas-filled
c. Scintillation
d. All of the above
C. Scintillation - answerThe detector that gives off a flash of light when irradiated is
a. Solid-state
b. Gas-filled
c. Scintillation
D. All of the above
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