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LMRT CORE REVIEW TEST QUESTIONS WITH CORRECT ANSWERS

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LMRT CORE REVIEW TEST QUESTIONS WITH CORRECT ANSWERS the ability of the grid to remove scatter increases - Answer-As the lead content of a grid increases grid cut-off - Answer-Angulation across the long axis of a linear grid causes Potter-Bucky diaphragm - Answer-A device that moves the g...

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  • November 2, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • LMRT CORE
  • LMRT CORE
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LMRT CORE REVIEW TEST
QUESTIONS WITH
CORRECT ANSWERS

the ability of the grid to remove scatter increases - Answer-As the lead content of a grid
increases

grid cut-off - Answer-Angulation across the long axis of a linear grid causes

Potter-Bucky diaphragm - Answer-A device that moves the grid during a radiographic
exposure is called a

perpendicular - Answer-A potter-bucky diaphragm must move the grid in a direction that
is_ to the direction of the grid lines

the use of reusable receptors - Answer-Digital radiography (DR) is characterized by

binary machine - Answer-Computers operate using a_ language

bit - Answer-Each binary # is called a

byte - Answer-An eight-bit word is called a

RAM - Answer-When the main power to the computer is turned off,_ is erased

mouse - Answer-Which computer device does not store memory?

amorphous silicon - Answer-Indirect DR uses_ as the detector material

laser scanning a PSP plate - Answer-CR systems acquire clinical information by

brightness - Answer-The window level controls

image density - Answer-The window width controls

pixel - Answer-Resolution is controlled by_ size

, thin film technology (TFT) - Answer-A common feature between indirect & direct DR
technology is

matrix - Answer-Computerized digital images consist of a_ of picture elements, each
w/a video display value or gray shade

electronic address - Answer-Each pixel in a digital display matrix is located according to
its

3,145,728 - Answer-A matrix of size 2048 x 1536 would have_ pixels

4 - Answer-If the digital FOV is 1024 & the display matrix is 256, the pixel size would be

pixel size - Answer-In digital imaging, the limiting factor in spatial resolution is the

256 - Answer-A pixel that has an 8-bit depth displays_ shades of gray

3 mm renal calculi (stone) - Answer-Which of the choices below would produce the
highest spatial frequency & contrast?

manual processing - Answer-All of the following are related except one?

exposure index & values of interest (VOI) - Answer-In digital imaging processing, the
digital data set is arranged into a histo-graph distribution in order to determine the

Apply a predetermined scale of contrast to the digital data set - Answer-The purpose of
a LUT is to

Is direct w/matrix size & indirect w/pixel size - Answer-The relationship b/w digital image
resolution

MRI - Answer-Of the many types if digital image procedures performed in a
contemporary medical imaging dept, the largest file sizes are typically generated by

Compares entrance dose to the detector to a reference industry-standard target dose -
Answer-The deviation index (DI)

Exposure to the IP of 1 mR - Answer-An S value of 200 represents a/an

An EI # increase from 1500-1800 - Answer-When changing exposure technique from 9
mAs to 18 mAs using computed radiography, the radiographer

A loss of contrast - Answer-Grossly overexposed digital images will demonstrate

Repeating an image w/an S # of 210 b/c of exposure technique - Answer-Of the choices
below, the greatest ALARA violation would be

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