June-3 Poll Questions

Radiographers must be cautious about discarding or "correcting" what appear to be low-resolution images on screening monitors prior to submitting them for diagnosis because:

Class 2 display monitors do not have the inherent resolution of radiologists' monitors

RAM is an acronym for ________ memory.

Random access

TRUE/FALSE: Artificial intelligence refers to a computer's ability to use program algorithms to solve problems.

True

TRUE/FALSE: The operation system software acts as a bridge between applications and hardware.

True

Radiomics: a) is also known as quantitative imaging b) will be used to replace radiologists c) is currently used in CT, US, & PET studies

a) is also known as quantitative imaging

for LCD or CRT display monitors, the response time is the time required for a(n): a) pixel to change brightness b) next frame to be reconstructed c) next field to be reconstructed d) information for a frame to arrive at the monitor from the input source

a) pixel to change brightness

a barcode reader is a type of _______ device: a) processing b) input c) output

a) processing

Compared to other display systems, the displayed contrast for LCDs is relatively poor due to their inability to: a) produce true black b) achieve uniform sharpness c) warm up quickly d) cope with temperature changes

a) produce true black

For a typicaly LCD display monitor, each pixel consists of: a) three subpixels with six segments each b) two subpixels with three segments each c) two subpixels with two segments each d) no subpxels; each pixel is the smallest physical element in the screen

a) three subpixels with six segments each

The TED talk entitled Will Healthcare Replace Digital or Die Trying explained that medical data could be used for: a) upfront decision making improving clinical practice & to help patients choose providers b) to keep patients out of the hospital, improve services delivered to patients & to deliver services in new ways. c) both of the above statements are True

c) both of the above statements are True

All of the following are major operating systems except: a) windows b) mactinosh c) hologic d) UNIX/Linux

c) hologic

To block out ALL light, place: a) a polarizing lens horizontally b) a polarizing lens vertically c) two polarizing lenses perpendicular to each other d) two polarizing lenses parallel to each other

c) two polarizing lenses perpendicular to each other

Deep learning: a) is a subset of machine learning b) is the ability to train your computer c) can use any type of data to produce conclusions that would typically be arrives at by humans d) all of the above

d) all of the above

The liquid crystal display operates on the principle of: a) light emission by incandescence b) light emission by stimulated fluorescence c) light emission by phosphorescence d) the polarization of light

d) the polarization of light

The pixels of a liquid crystal display (LCD) screen are made up of: a) phosphor crystals b) the intersections of transparent, flat wires c) the junctions of thin copper wires behind the screen d) light-emitting diodes (LEDs) e) TFTs (thin film transistors)

e) TFTs (thin film transistors)

A prominent disadvantage of the LCD monitor is related to its: a) compactness b) image sharpness c) reflective glare d) veiling glare e) viewing angle

e) viewing angle

binary code is a computer language based on:

ones and zeros

a 5-megapixel LCD screen presents much higher ________ than a 3-megapixel LCD

resolution

Because the subpixels can be treated by the computer as separately addressed elements for a black and white monitor, we obtain _________ the spatial resolution of a color display monitor.

three times