LRA 222: COURSE EXAMINATION
conventional radiography - answers✔✔Film and intensifying screens are primarily used in
the use of a storage phosphor plate - answers✔✔CR acquires an image through
barium fluorohalide - answers✔✔The active element in a storage phosphor is
Focused laser light - answers✔✔In reference to PSP image capture, to release the latent image,
which of the following devices is scanned over the phosphor plate?
scintillator - answers✔✔X-ray energy related to indirect capture DR will stimulate a ______,
which eventually is changed into an electrical signal.
photoconductor - answers✔✔The ______ converts x-ray energy directly to a digital electrical
signal.
dynamic range - answers✔✔Exposure latitude is to conventional radiography as _______ is to
DR.
image grayscale values - answers✔✔A look-up table maps
independent kilovoltage peak and milliampere-second stations. - answers✔✔All of the
following are components of a PACS except
, False - answers✔✔T/F Similar to CR, DR can use the existing diagnostic equipment found in
today's imaging departments.
True - answers✔✔T/F Indirect capture DR converts absorbed x-ray energy into visible light.
True - answers✔✔T/F DICOM is a standard that allows imaging modalities and PACS to
communicate in the same language.
picture element - answers✔✔Each square in a matrix is called a
depth - answers✔✔The number of bits per pixel is known as bit
Exposure index refers to the amount of exposure to the patient. - answers✔✔Which of the
following statements is not true?
a. Exposure index refers to the amount of exposure to the patient.
b. Exposure index refers to the amount of exposure to the image receptor.
c. Exposure index refers to the amount of exposure to the patient.
d. Exposure index standardization is beneficial to the technologist.
brightness - answers✔✔How dark or light a digital image appears on a display monitor is known
as
contrast resolution - answers✔✔The ability of a digital system to display subtle changes in
shades of gray is called
spatial resolution - answers✔✔The ability of an imaging system to demonstrate small details of
an object is known as
conventional radiography - answers✔✔Film and intensifying screens are primarily used in
the use of a storage phosphor plate - answers✔✔CR acquires an image through
barium fluorohalide - answers✔✔The active element in a storage phosphor is
Focused laser light - answers✔✔In reference to PSP image capture, to release the latent image,
which of the following devices is scanned over the phosphor plate?
scintillator - answers✔✔X-ray energy related to indirect capture DR will stimulate a ______,
which eventually is changed into an electrical signal.
photoconductor - answers✔✔The ______ converts x-ray energy directly to a digital electrical
signal.
dynamic range - answers✔✔Exposure latitude is to conventional radiography as _______ is to
DR.
image grayscale values - answers✔✔A look-up table maps
independent kilovoltage peak and milliampere-second stations. - answers✔✔All of the
following are components of a PACS except
, False - answers✔✔T/F Similar to CR, DR can use the existing diagnostic equipment found in
today's imaging departments.
True - answers✔✔T/F Indirect capture DR converts absorbed x-ray energy into visible light.
True - answers✔✔T/F DICOM is a standard that allows imaging modalities and PACS to
communicate in the same language.
picture element - answers✔✔Each square in a matrix is called a
depth - answers✔✔The number of bits per pixel is known as bit
Exposure index refers to the amount of exposure to the patient. - answers✔✔Which of the
following statements is not true?
a. Exposure index refers to the amount of exposure to the patient.
b. Exposure index refers to the amount of exposure to the image receptor.
c. Exposure index refers to the amount of exposure to the patient.
d. Exposure index standardization is beneficial to the technologist.
brightness - answers✔✔How dark or light a digital image appears on a display monitor is known
as
contrast resolution - answers✔✔The ability of a digital system to display subtle changes in
shades of gray is called
spatial resolution - answers✔✔The ability of an imaging system to demonstrate small details of
an object is known as
