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Quiz #4 > Quix 4 > Flashcards

Quix 4 Flashcards

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1
Q

Comprehensive dental education solution

A

AxiUm

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2
Q

What does PACS stand for?

A

Picture Archive and Communication System

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3
Q

Integrated image archiving system where we store all radiographs that are acquired in the school

A

MiPACS

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4
Q

MiPACS are used for what kind of imaging?

A

2D (Intraoral, extraoral, panoramic)

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5
Q

PACS used for 3D images (CBCT)

A

INFINITT

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6
Q

INFINITT comes with a dedicated dental software called what ?

A

Xelis Dental Viewer (allows panoramic reconstruction)

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7
Q

T/F: You can only view current x-rays in MiPACS

A

False: can view all past x-rays (NO IMAGES GET DELETED)

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8
Q

If you click and hold the left mouse and drag R/L this changes

A

Brightness / image density

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9
Q

If you click and hold the left mouse and drag up/down this adjusts

A

contrast

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10
Q

The edge enhance button allows you to adjust

A

Sharpness (Can cause noise)

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11
Q

This button allows you to see bone levels and PDL space

A

Perio button

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12
Q

This button highlights root canals

A

Endo button

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13
Q

This button adjusts brightness, contrast and sharpening all together

A

Dentin to enamel junction button

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14
Q

Downside to dentin to enamel junction button

A

It is preset = not perfect for every x-ray = cant trust this alone (can have overshooting artifacts)

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15
Q

What is the collimator size for a handheld x-ray unit

A

Less than 18cm long w/ 6cm diameter

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16
Q

Handheld units operate at __ kVp

A

60

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17
Q

Handheld units have longer duty cycles making them less effective in dealing with __

A

Heat (less insulation)

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18
Q

When using a handheld device what 2 things effect operators exposure to radiation

A

Tube leakage
Scatter radiation (from patient)

19
Q

In what year were handheld units FDA approved and what were they meant for ?

A

2005
Emergency facilities and disaster recovery

20
Q

Two types of handheld x-ray units

A

Camera
Gun/Pistol

21
Q

Non-FDA approved handheld x-ray units usually contain one of these 5 things

A
  1. Short distance
  2. Bad collimation
  3. Lack of backscatter shield
  4. Low kVp
  5. Absence of deadman switch
22
Q

Advantages of handheld

A
  1. Portable
  2. Easy to use
  3. Operator chairside
  4. Maneuverable
  5. No addition cost of installation
23
Q

Disadvantages of handheld

A
  1. Arm/hand fatigue
  2. Susceptible to damage
  3. workflow interruption
  4. disinfection =problem
  5. Possible theft
24
Q

What is the point of failure on a handheld x-ray

A

Where the battery connects

25
Q

What increases as the battery discharges over time

A

Dose to the patient

26
Q

The exposure time of handheld is __

A

Unreliable

27
Q

Due to handhelds operating at a fixed, lower mA this causes __

A

longer exposure times : 1.5-3 X as long

28
Q

With the greater exposure time necessary for handhelds this leads to greater potential for __

A

Patient movement and image blur

29
Q

What is the duty cycle

A

Time between exposures for cooling

30
Q

What may contribute to the reduced efficiency of handhelds

A

Longer duty cycle of handhelds (1:60) compared to conventional (1:15)

31
Q

Handheld batteries last __ charge cycles, the battery has to be replaced every __

A

300
2-3 years

32
Q

What causes corrosion on electronic connector, potentially causing battery failure

A

Cleaning fluid

33
Q

What three things decrease the operator exposure of handheld units

A
  1. In zone of occupancy
  2. Backscatter shield is close to pt
  3. Unit is 90 degrees from operator
34
Q

Since handhelds can be in controlled and uncontrolled areas, what 3 measures can be taken to shield

A
  1. Don’t stand in path of x-ray beam
  2. Remain behind the barrier or be 6ft from pt
  3. Position 90-135 degrees to the direction of the primary beam during exposure
35
Q

T/F: All who convert to handheld are happy with image quality

A

False (15% regret)

36
Q

How do handheld units effect workflow

A

Sensor repositioning can take longer

37
Q

Handhelds work best for

A

Bitewings

38
Q

T/F: Currently there is workplace ergonomic data, and error / retake rates for handhelds

A

False

39
Q

What is something that may need to be purchased with handheld units

A

shorter arms for PID

40
Q

When looking at the estimated 5 year cost, handheld cost is __

A

65% higher

41
Q

What is needed in Kentucky for handheld devices

A
  1. Purchase and registration
  2. Exemption to section 5 of KAR (written)
  3. General use and training
  4. Additional operator protections
42
Q

Who can hold the sensor/detector

A

ONLY the patient

43
Q

T/F: Each operator MUST have a radiation badge and be continuously monitored forever

A

True

44
Q

Who must wear a lead apron in the state of Kentucky when using a handheld unit

A

The patient and operator

Quiz #4 (1 decks)

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