Display Flashcards
Information recieved at the display can be shown as what 3 modes
B-mode
M-mode
A-mode
A mode y and x axis
X depth
Y amplitude
M-mode x and y
X - time
Y - depth
Type of memory where info is lost once unfrozen
RAM
ROM stands for
What does it do?
Read only memory
Permanent information in storage, not to be changed
PROM
Is what and stands for
Programmable read only memory
Permanent information in storage, can be changed, adjusted
HIS stands for and is what
Hospital information system
Manage administrative, financial and clinical aspects of a hospital
RIS
Stands for, is what?
Radiology information system
Electronic info system built to manage the workflow in the rad department
PACS
Stands for
Is what
Picture Archive and Communication System
Storage, retrieval and distribution of images
Frame rate is
Number of images/frames stored in memory per second
Refresh rate is
Number of times per second that images are retrieved out of the memory
What is the raster scanning pattern of the CRT
Left to right
Top to bottom
Starting at top left, ending bottom right
What do we see? Refresh rate or frame rate? What limits what?
We see refresh rate. RR limits FR
what are the colour elements of the CRT display?
Red
Green
Blue
Relationship between PRF and frame rate
Increase PRF, increase frame rate
