Image presentation and computers

Term
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the type of computer memory that allows temporary storage for programs and data is called:
a) ROM
b) RAM
c) Rad
d) REM
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Terms in this set (17)
the type of computer memory that allows temporary storage for programs and data is called:
a) ROM
b) RAM
c) Rad
d) REM
RAM
A high-pass image filter removes:
a) relatively lower frequencies
b) relatively higher frequencies
c) frequencies that are both too high and too low
d) edges
relatively lower frequencies
Display devices in nuclear medicine include:
a) CRTs
b) Video monitors
c) magnetic tape
d) all of the above
e) a and b only
a and b only; CRTs and video monitors
Which part of the computer is used for data filtering?
a) Buffer
b) array processor
c) ROM
d) ADC
array processor
Which of the following is not true regarding data acquisition in frame mode?
a) It requires much less memory than list mode
b) it has a higher acquisition rate compared to list mode
c) Data cannot be divided into different images at a later time
d) incoming data is stored in a time sequence.
incoming data is stored in a time sequence.
Which is most useful for gated first-pass cardiac studies?
a) list mode
b) frame mode
list mode
static on film may result from:
a) removing a sheet of the film too quickly from the box or cassette
b) contact with skin
c) contact with dust and/or lint particles
d) all of the above
all of the above
Which type of filter is used exclusively with dynamic images?
a) spatial
b) temporal
c) band pass
d) low pass
temporal
Assuming speed of retrieval is unimportant, which archiving
option would be the best choice for a department with a
limited budget?
(a) Magneto-optical disk
(b) Floppy disk
(c) Magnetic tape
(d) Hard disk
Magnetic tape
if films appear too light, which of the following should be monitored?
a) chemicals are replenished at the correct rate
b) developer temperature is set according to manufacturer's recommendation
c) water does not overflow into the developer in the film processor
d) all of the above
e) a and b only
all of the above
Which of the following describes the fixing process? a) the undeveloped sodium iodide crystals are removed, and the developing process is stopped. b) silver halide crystals become reduced to metallic silver c) the undeveloped silver halide crystals are removed, and the developer is neutralized d) none of the abovethe undeveloped silver halide crystals are removed, and the developer is neutralizedFiltered back projection of SPECT data initially creates: a) transaxial images b) sagittal images c) coronal images d) oblique imagestransaxial imagesFiltering of SPECT data may take place: a) before reconstruction b) during reconstruction c) after reconstruction d) all of the aboveall of the aboveDouble emulsion film is used most often in nuclear medicine departments: true or falsefalseif a technologist notices an unexpected hot spot on an image, he or she should: a) take oblique or lateral views of the area b) attempt to remove the source of the signal by cleansing or removing clothing and reimaging, noting the difference for physician (pants removed, etc.) c) none of the above d) a and ba and b: take oblique or lateral views of the area, attempt to remove the source of the signal by cleansing or removing clothing and then reimage, note the difference for physicianWhen presenting a bone scan to a physician for interpretation, the technologist should be certain than the following are noted on the film or patient's request form. a) right and left sides b) injection site c) age d) fracture history e) all of the aboveall of the aboveFilm should be stored: a) on its side b) after the foil wrapper has been removed c) in a temperature-controlled area d) all of the above e) a and c only