Chapter 8 WS Flashcards
What is EMR?
Electronic Medical Record
define EMR
Computerized account chronicling the care process story of a patient from presentation through their diagnosis and treatment.
what is EPID?
electronic portal imaging device
define EPID
system producing near real-time portal images on a computer screen for evaluation.
what is V & R
verification and record
define V & R
Verification and Record systems provide validated parameters from the treatment plan to the treatment machine for setup and delivery.
Actual machine settings are compared with those most recently prescribed for a particular field and prevent initiation of the treatment beam if settings vary outside a specified tolerance range.
what is QA
quality assurance
define QA
systematic monitoring of the quality and appropriateness of patient care with an emphasis on performance levels.
what is included in a treatment record
documents the delivery of treatments;
- displays fractional and cumulative doses,
- machine settings,
- verification imaging;
- documents the ordering and execution of prescribed changes.
define protraction
time period during which the treatment will be given
define treatment technique
number, type, and orientation of treatment fields
define beam modifiers
Devices that change the shape of the treatment field or distribution of the radiation at depth
Examples: independent jaws, MLCs, wedges, compensators, and bolus.
define isocenter
Point of intersection of the three axes of rotation (gantry, collimator, and base of couch) of the treatment unit.
what is another name for “treatment field”
portal
define BEV
Allows anatomy to be viewed from the perspective of the radiation beam.