PACS & Recording Devices Flashcards
Name the pros and cons of film
Pros: it had long shelf life and good resolution
Cons: expensive, ease of retrieval, and storage space
What are the steps for developing film?
- development
- fixing
- washing
- drying
Pros/cons of multi-format camera
Pros: excellent grayscale and used a shutter and lens to control exposure time and position
Cons: sensitive and expensive, one machine per camera
Pros/cons of laser camera
Pros: precise control for good contrast and detail resolution, many machines per one camera, not sensitive to light
Cons: expensive
Pros/cons video thermal printer
Pros: instantly available images
Cons: not as good quality, heat sensitive paper
Pros/cons magnetic tape recorder
Pros: video instead of stills, audio could be added
Cons: compatibility issues
Pros/Cons magneto-optic disks
Pros: larger memory space, rewritable, not susceptible to damage
Cons: compatibility issues
Pros/Cons of PACS
Pros: storage, external viewing, image quality, connection to other modalities, time factor
Cons: expensive start up, computer crashing, need special staff, coding issues
Universal standard for compressing images in the PACS
DICOM
The amount of time that sound is emitted from the probe
DF
The branch of medicine that deals with the incidence, distribution, and possible control of diseases and other factors relating to health
Epidemiology
A ratio that determines the amount of focusing in a sound beam
BUR
The ratio of acoustical power produced by the transducer to the power required to raise the temperature in tissue 1 degree
Thermal index
The effect of sound on tissue
Bioeffect
A test made to occur in a lab vessel or other controlled experimental environment rather than within a living organism or natural setting
In vitro
The likelihood that energy used will lead to cavitation
Mechanical index
Resulting in an increase in temperature typically due to absorption
Thermal effects
A measure of the power of sound per unit area
Intensity
A measure of the total energy summed over the cross sectional area of the beam per unit of time
Power
The constant display of acoustical information for the purposes of predicting the possibility of bioeffects
Output display standard
Results in radiation force and/or cavitation of tissues
Mechanical effects
A measure of the sound beam in space
Spatial intensity
A measure of sound in time
Temporal intensity
The maximum variation of an acoustic variable
Amplitude
