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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

Study These Flashcards
A

Tube leakage
Scatter radiation (from patient)

19
Q

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

Study These Flashcards
A

2005
Emergency facilities and disaster recovery

20
Q

Two types of handheld x-ray units

Study These Flashcards
A

Camera
Gun/Pistol

21
Q

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

Study These Flashcards
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

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

Disadvantages of handheld

Study These Flashcards
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

Study These Flashcards
A

Where the battery connects

25
What increases as the battery discharges over time
Dose to the patient
26
The exposure time of handheld is __
Unreliable
27
Due to handhelds operating at a fixed, lower mA this causes __
longer exposure times : 1.5-3 X as long
28
With the greater exposure time necessary for handhelds this leads to greater potential for __
Patient movement and image blur
29
What is the duty cycle
Time between exposures for cooling
30
What may contribute to the reduced efficiency of handhelds
Longer duty cycle of handhelds (1:60) compared to conventional (1:15)
31
Handheld batteries last __ charge cycles, the battery has to be replaced every __
300 2-3 years
32
What causes corrosion on electronic connector, potentially causing battery failure
Cleaning fluid
33
What three things decrease the operator exposure of handheld units
1. In zone of occupancy 2. Backscatter shield is close to pt 3. Unit is 90 degrees from operator
34
Since handhelds can be in controlled and uncontrolled areas, what 3 measures can be taken to shield
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
T/F: All who convert to handheld are happy with image quality
False (15% regret)
36
How do handheld units effect workflow
Sensor repositioning can take longer
37
Handhelds work best for
Bitewings
38
T/F: Currently there is workplace ergonomic data, and error / retake rates for handhelds
False
39
What is something that may need to be purchased with handheld units
shorter arms for PID
40
When looking at the estimated 5 year cost, handheld cost is __
65% higher
41
What is needed in Kentucky for handheld devices
1. Purchase and registration 2. Exemption to section 5 of KAR (written) 3. General use and training 4. Additional operator protections
42
Who can hold the sensor/detector
ONLY the patient
43
T/F: Each operator MUST have a radiation badge and be continuously monitored forever
True
44
Who must wear a lead apron in the state of Kentucky when using a handheld unit
The patient and operator

Quiz #4 (1 decks)

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