Machine Operations Flashcards

1
Q

the following describes direct or indirect patient monitoring?

-therapist can see patient through lead lined glass
-this type of monitoring is seen with kV or orthovoltage unit
-seen with CT

A

direct

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2
Q

the following describes direct or indirect patient monitoring?

-therapist can only see patient through monitors
-seen with MV units
-seen with treatment machines

A

indirect

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3
Q

what type of monitoring is paired with kV or orthovoltage units?
what about MV units?

A

kv and orthovoltage get direct monitoring

MV units get indirect – cause need more shielding and we cannot directly monitor patient

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4
Q

____ and ____ contact must be possible at all times for the treatment to occur

A

audio and visual

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5
Q

audio communication must be ____ form of communication

A

two-way
– therapist can hear in room constantly
–patient can hear therapist at console when button is pressed

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6
Q

T/F: visual AND audio must be on constantly and working for treatment to continue

A

TRUE

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7
Q

RV stands for what?

A

Record and Verify

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8
Q

_____ system also records each trt for each patient

A

Record and Verify system (RV)

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9
Q

what system allows for communication between the trt planning system and the LINAC console?

A

RV (Record and Verify system)

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10
Q

what system will display the parameters of the machine setup from the treatment plan and compares it with what the machine is set to at that time

A

RV (Record and Verify system)

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11
Q

T/F: if parameters are NOT in tolerance for the machine/trt, the RV system will prevent us from beaming on

A

TRUE

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12
Q

the treatment couch is

  • __heavy/light___ weight
  • made of ______ ______
  • ___flat/curved____
A

lightweight
made of carbon fiber
flat

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13
Q

treatment couch can also be called what?
-______
-_______

A

-PSA (patient support assembly)
-pedestal

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14
Q

there are ___ degrees of freedom or ____ degrees of freedom for our treatment couches

A

4-degrees of freedom or there can be 6-degrees of freedom

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15
Q

the minimum degrees of freedom for a PSA are ___-degrees

A

4-degrees

all couches have at least 4 degrees of freedom

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16
Q

what are the 4 degrees of freedom for a PSA?

A

X, Y, Z
ie. translational and yaw

17
Q

“yaw” means what?

A

rotation/couch kicks

18
Q

translational directions are what?

A

vertical
lateral
longitudinal

19
Q

all PSA’s have a minimum of 4-degrees of freedom, but some have additional degrees to equal __-degrees of freedom

A

6

20
Q

what are the 6 degrees of freedom?

A

the 4 DOF including pitch and roll

so –> translational (X, Y, Z), yaw, pitch and roll

21
Q

DOF = ____ _____ _____

A

Degrees of Freedom

22
Q

which trt couch DOF has greater trt accuracy?

A

6-DOF

23
Q

old couches had ____ at the top that would decrease attenuation of the beam allowing for more radiation to cross through the couch

A

mesh

24
Q

where is the treatment console located?

A

at the desk

25
Q

pendants are located ___inside/outside___ the trt room

A

inside the trt room

26
Q

what must be pressed in order to use hand pendants?

A

motion enable bars