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CT Scan > Lexicon Note > Flashcards

Lexicon Note Flashcards

1
Q

The portion of the __ where scans are prescribed

A

User interface

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2
Q

Scan acquisition and user interface basics, continued

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Exam plan
Scan set up window
Scan protocol
Scan protocol
Exam protocol
Scan procedure
Examination
Px registration

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3
Q

Other portions of user interface, such as were reconstructed images viewed

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Active display
Image viewports
Image viewer
Desktop
View scan and various applications
Active viewer
Various task cards such as “viewing”
Review filming adc analysis offline recon

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4
Q

The scanned projection radiograph, often acquired by the ct system to allow user to prescribe the start and end locations of the scan range

A

Ct localizer radiograph

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5
Q

Ct localizer radiograph

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Scanogram
Scout
Scanogram
Scout
Surview
Surview
Topgram
Scout

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6
Q

Data aqcuisition while the px table remains stationary, the table position maybe incremented between x-ray exposure to collect data over a longer z axis range

A

Axial scan mode

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7
Q

Axial scan mode

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Scan & view, scan & scan, volume, wide volume (aquilion one)
Axial
Normal
Axial
Axial
Axial or step&shoot
Sequence
Axial

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8
Q

Data acquisition while px table is continuously moving along the z axis

A

Helical or spiral scan mode

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9
Q

Helical or spiral scan mode

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Helical
Helical
Volume
Helical
Helical
Helical
spiral
Helical

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10
Q

Data acquisition at multiple time point over the same anatomic location(s) while px table is cycles back and forth between designated start and end locations in order image a region wider than the detector

A

Dynamic scan mode- single detector width

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11
Q

Dynamic scan mode- single detector width

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Dynamic (continuous or intermittent)
Cine or zero interval axial
Dynamic
Dynamic
Dynamic
Dynamic ct
Dynamic (continuous) or serio (intermittent); scan mode name: dynmulti or dynserio
Perfusion

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12
Q

Data acquisitipn at multiple time points over same anatomic locations while px table remains stationary; x-ray exposure can be continuous or intermittent

A

Dynamic scan mode: multiple detector widths

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13
Q

Dynamic scan mode: multiple detector widths

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

N/a
Shuttle
N/a
Dynamic
N/a
Jog
Adaptive spiral scan mode name dynmulti4d or dynserio4d (ecg triggered)
Na

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14
Q

Interventional ct intermittent x-ray exposures

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Ct fluoro (CTF)
Smartstep
Guideshot
Ct fluoro (CFT)
Single cct, continuous cct
Single cct (continuous ct)
Model dependent biopsy or intervention (i-sequence or i-spiral)
Axial or helical

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15
Q

Interventional ct- continuous x-ray exposure

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Ct fluoro (CFT)
Smartview (smart view 3D)
Na
Ct fluoro (CFT)
Fluoro
Ct fluoro
Model dependent: care vision or intervention (i-fluoro)
Currently N/A

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16
Q

__ (mm) per 360 degree rotation of the x-ray tube (axial scan mode)

A

Table increment

17
Q

Table increment

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Couch movement
Interval
Table feed (mm)
Increment (mm)
Interval
Increment (mm)
Feed (mm)
Increment (mm)

18
Q

__ per 360 degrees rotation of x-ray tube (helical scan mode)

A

Table feed

19
Q

Table feed

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Couch speed (mm/rot)
Speed (mm/rot) converge (mm/s)
Table speed (mm/rot)
Pitch
Table speed (mm/rot)
Table speed (mm/rot)
Table feed (mm/rot)
Pitch

20
Q

Diamete of circular region within the scan plane over which projection data are collected. Nominally equal to the diameter of the primary beam at isocenter in the axial plane

A

Field of measurement

21
Q

Field of measurement

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

Calibrated field of view (CFOV)
scan field of view (SFOV cm)
Scan field of view (SFOV mm)
Full field of view (FFOV, cm)
scan field of view (SFOV)
Not determined by tech but built into protocol
Not determined by tech but built into protocol
Scan field of view (SFOV, mm)

22
Q

Numbers of electron accelerated across an x-ray tube per unit time, expressed in unite of milliampere (mA)

A

Tube current

23
Q

Tube current

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

mA
mA
mA
mA
mA
mA
mA
mA

24
Q

The product of tube current and exposure time per rotation, expressed in units of milliampere • seconds
(mAs). In axial scan mode, this is equal to tube current × (scan angle ÷ 360) × rotation time. In helical scan mode, this is equal to tube current × rotation time.

A

Tube current-time product

25
Q

Tube current-time product

Canon-
Ge-
Hitachi-
Neurologica-
Neusoft-
Philips-
Siemens-
United imaging-

A

mAs
Not used on this system
Not used on this system
mAs
mAs
mAs
mAs
mAs

26
Q

In helical scan mode, this is the product of tube
current and rotation time (expressed in units
of milliampere • seconds (mAs) ÷ pitch)

A

Effective tube current-time product

27
Q

Effective tube current time product

Canon
Ge
Hitachi
Neurologica
Neurosoft
Philips
Siemens
United imaging

A

Effective mAs (= mAs/pitch)
Not used on this system
Not used on this system
mAs
mAs per slice =mAs/ pitch
mAs per slice (= mAs/pitch)
Effective mAs (= mAs/pitch)
Effective mAs (=mAs/pitch)

28
Q

The electric potential applied across an x-ray tube to accelerate electrons towards a target material, expressed in units of kilovolts (kV)

A

Tube potential

29
Q

Tube potential

Canon
Ge
Hitachi
Neurologica
Neurosoft
Philips
Siemens
United imaging

A

kV
kV
kVp
kV
kV
kVp
kV
kV

30
Q

Unitless parameter used to describe the table travel during helical CT; equal to table travel (mm) per gantry rotation ÷ total nominal beam width (mm)

A

Pitch

31
Q

Pitch

Canon
Ge
Hitachi
Neurologica
Neurosoft
Philips
Siemens
United imaging

A

CT Pitch Factor
Pitch
Pitch
Pitch
Pitch
Pitch
Pitch
Pitch

32
Q

Continuous x-ray exposures

A

Interventional ct

33
Q

Interventional CT

Canon
Ge
Hitachi
Neurologica
Neurosoft
Philips
Siemens
United imaging

A

CT Fluoro (CTF)
SmartView SmartView 3D
Not available
CT Fluoro (CTF)
Fluoro
CT Fluoro
Model dependent: CARE Vision or Intervention (i-Fluoro)
Currently not
available

34
Q

(mm) per 360 degree rotation of the x-ray tube (axial scan mode)

A

Table increment

35
Q

Table increment

Canon
Ge
Hitachi
Neurologica
Neurosoft
Philips
Siemens
United imaging

A

Couch movement (mm)
Interval
Table Feed (mm)
Increment (mm)
Interval
Increment (mm)
Feed (mm)
Increment (mm)

CT Scan (3 decks)

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