LRA 221 Finals Review Exam
Questions and Answers12
Film and intensifying screens are primarily used in - ANSWERS-conventional radiography
CR acquires an image through: - ANSWERS-The use of a storage phosphor plate
Technologist efficiency ratings are generally the same when comparing conventional
radiography with ______ radiography. - ANSWERS-computed
The active element in a storage phosphor is: - ANSWERS-barium fluorohalide
In reference to PSP image capture, to release the latent image, which of the following devices is
scanned over the phosphor plate? - ANSWERS-Focused laser light
X-ray energy related in indirect capture DR will stimulate a ______, which eventually is changed
into an electrical signal. - ANSWERS-scintillator
The ______ converts x-ray energy directly to a digital electrical signal. - ANSWERS-
photoconductor
Exposure latitude is to conventional radiography as _______ is to DR. - ANSWERS-dynamic range
A look-up table maps - ANSWERS-Image gray scale values
, All of the following are components of a PACS except - ANSWERS-independent kilovoltage peak
and milliampere-second stations.
Similar to CR, DR can use the existing diagnostic equipment found in today's imaging
departments. - ANSWERS-False- Can't use the same equipment
Indirect capture DR converts absorbed x-ray energy into visible light. - ANSWERS-True- indirect
DR convert X-ray energy to visible light
DICOM is a standard that allows imaging modalities and PACS to communicate in the same
language. - ANSWERS-True
Which of the following statements is not true? - ANSWERS-Changing the matrix and the FOV will
not change the size of the pixel.
Each square in a matrix is called a - ANSWERS-picture element
The number of bits per pixel is known as bit - ANSWERS-depth
Which of the following statements is not true?? - ANSWERS-Exposure index refers to the
amount of exposure to the patient.
Deviation index is the difference between _____ and _____ expressed in logarithmic fashion. -
ANSWERS-actual exposure (KIND); target exposure (KTGT)
How dark or light a digital image appears on a display monitor is known as: - ANSWERS-
brightness
Questions and Answers12
Film and intensifying screens are primarily used in - ANSWERS-conventional radiography
CR acquires an image through: - ANSWERS-The use of a storage phosphor plate
Technologist efficiency ratings are generally the same when comparing conventional
radiography with ______ radiography. - ANSWERS-computed
The active element in a storage phosphor is: - ANSWERS-barium fluorohalide
In reference to PSP image capture, to release the latent image, which of the following devices is
scanned over the phosphor plate? - ANSWERS-Focused laser light
X-ray energy related in indirect capture DR will stimulate a ______, which eventually is changed
into an electrical signal. - ANSWERS-scintillator
The ______ converts x-ray energy directly to a digital electrical signal. - ANSWERS-
photoconductor
Exposure latitude is to conventional radiography as _______ is to DR. - ANSWERS-dynamic range
A look-up table maps - ANSWERS-Image gray scale values
, All of the following are components of a PACS except - ANSWERS-independent kilovoltage peak
and milliampere-second stations.
Similar to CR, DR can use the existing diagnostic equipment found in today's imaging
departments. - ANSWERS-False- Can't use the same equipment
Indirect capture DR converts absorbed x-ray energy into visible light. - ANSWERS-True- indirect
DR convert X-ray energy to visible light
DICOM is a standard that allows imaging modalities and PACS to communicate in the same
language. - ANSWERS-True
Which of the following statements is not true? - ANSWERS-Changing the matrix and the FOV will
not change the size of the pixel.
Each square in a matrix is called a - ANSWERS-picture element
The number of bits per pixel is known as bit - ANSWERS-depth
Which of the following statements is not true?? - ANSWERS-Exposure index refers to the
amount of exposure to the patient.
Deviation index is the difference between _____ and _____ expressed in logarithmic fashion. -
ANSWERS-actual exposure (KIND); target exposure (KTGT)
How dark or light a digital image appears on a display monitor is known as: - ANSWERS-
brightness
