TBR-CT - Training From The BACK Of The Room Certified Trainer
TBR-CT - Training from the BACK of the Room Certified Trainer
Exam (elaborations)
CT QUESTIONS AND ANSWERS FULLY 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 15 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)
Which of the following will increase if pitch is increased?
anatomy coverage in the z axis
patient radiation exposure dose
scan overlap
angle of the slice - answer anatomy coverage in the z axis
angle of the slice
Regarding MDCT, which of the following statements is false?
the terms collimation and slice thickness are synonymous
pitch is defined as table movement per tube rotation divided by beam width
multiplying the number of detectors x the slice thickness will determine beam width
as pitch increases, resolution decreases - answer the terms collimation and slice
thickness are synonymous
Calculate the beam width used when the scanner is a 64-channel system and 0.5 mm
slice thickness is programmed
128mm
32mm
70mm
64mm - answer32mm- 64x0.5
Definition of pitch? - answermovement of the patient table in one gantry
rotation/thickness of a single slice
12 slices, 8 of which were programmed at 10 mm and 4 of which were programmed at
2.5 mm are obtained. How much anatomy was covered?
120 mm
90 mm
10 cm
25 inches - answer90 mm- 8x10=80; 4x2.5=10; 80+10=90
Travel distance of the CT scan table per 360 degree rotation divided by the x-ray beam
slice thickness x scanner speed is the definition for which of the following?
Calculate the pitch when the table feed and beam collimation are identical
1.0
1.5
1.75
2.0 - answer1.0
Which of the following statements is accurate?
as pitch increases, scan coverage increases
as pitch increases, slice angle increases
as pitch decreases less interpolation is required
as pitch decreases, patient dose increases - answerAll of them
Which of the following statements is true regarding Dual Source CT?
there are two sets of x-ray tubes and detector arrays within a single CT gantry
increased scan speed is the primary goal of the design
two different kVp settings can be chosen - answerAll of them
Which of the following is the most commonly applied method of convolution in modern
MDCT?
filtered back projection
fourier transformation
extrapolation
iterative analysis - answerfiltered back projection
A finite set of instructions performed in a prescribed sequence to solve a problem is the
definition for which of the following?
interpolation
algorithm
back projection
protocol - answeralgorithm
Which of the following methods of convolution is described as an important processing
tool that decomposes an image into components?
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