Data Reformatting Workflow

Question 1

(Pathology workflow)
What confirmatory step should be obtained at right angles to the first?

Answer 1

Confirmatory coronal, axial or saggital view (2nd view at right angle to the first)

Question 2

(Pathology workflow — sectional views)
On which type of views should measurements be provided?

Answer 2

Provide measurements on sectional views

Question 3

(Pathology workflow)
Which sectional planes should be selected for measurements?

Answer 3

Select coronal, axial, saggital views

Question 4

(Pathology workflow)
Which surface renderings help detect cortical breaches?

Answer 4

Surface views to detect cortical perforations

Question 5

(Pathology workflow — volume views)
What limitation is noted about measurements on these views?

Answer 5

Measurements are difficult on volume views

Question 6

(Pathology workflow)
Which view helps localize the lesion in 3-D?

Answer 6

Volumetric view to localize

Question 7

(Pathology scan settings)
What scan time is indicated?

Answer 7

40 second scan times

Question 8

(Sinus and airway workflow)
What virtual inspection technique is included?

Answer 8

Virtual endoscopy

Question 9

(Sinus and airway workflow)
What quantitative and morphological airway assessments are made?

Answer 9

Volumetric measurements and Airway morphology

Question 10

(Sinus and airway workflow — axial views)
What constrictions and tissues should be displayed?

Answer 10

Showing sites of constriction, tonsils and adenoids

Question 11

(Sinus and airway workflow — axial views)
How should the volume be oriented relative to the vertical airway?

Answer 11

Re-orient volume to allow sections perpendicular to vertical airway

Question 12

(Sinus and airway workflow — coronal view)
Through which structures should the section pass, and what opening is shown?

Answer 12

Through nasal turbinates and maxillary sinus showing the maxillary ostium

Question 13

(Sinus and airway workflow — lateral ceph)
Which lymphoid tissues are noted?

Answer 13

Tonsils and adenoids

Question 14

(Sinus and airway settings)
What scan time is used?

Answer 14

5-10 second scan

Question 15

(3-D comparison)
What process aligns volumes for comparison?

Answer 15

3-D Superimposition

Question 16

(Anatomodels)
What term is used for models derived from CBCT?

Answer 16

Anatomodels from CBCT

Question 17

(Segmentation)
What singular term is used for separating structures in the dataset?

Answer 17

Segmentation

Question 18

(Orthodontic imaging settings — final)
What scan time range is used for study models from the final scan?

Answer 18

20 – 40 seconds for study models from scan

Question 19

(Orthodontic imaging settings — final)
What scan time is used for final imaging?

Answer 19

10 – 20 seconds

Question 20

(Orthodontic imaging settings — progress)
What FOV consideration applies when evaluating tooth root positions only?

Answer 20

Consider limiting FOV if evaluating tooth root positions only

Question 21

(Orthodontic imaging settings — progress)
What scan time is used for progress checks?

Answer 21

5-10 seconds

Question 22

(Impacted teeth workflow)
What tracing step may be included?

Answer 22

Nerve Tracing

Question 23

(Impacted teeth workflow — cross-sectional)
What is the default slice protocol?

Answer 23

Default is 1mm slices of 1mm thickness

Question 24

(Impacted teeth workflow — cross-sectional)
Are these views ideal for localization, and what are they good for?

Answer 24

Not good for localization but good for revealing close relationships such as 3rd molar to IDC or impacted canine to apex of lateral incisor

Question 25

(Impacted teeth workflow) Which views are best for localization of the impacted tooth?

Answer 25

Volumetric views Best for localization of the impacted tooth

Question 26

(Impacted teeth workflow) Which view provides the reference for cross-sectional images?

Answer 26

Axial/occlusal view Axial reference view for cross-sectional views

Question 27

(Impacted teeth — imaging settings) What scan time is used if nerve tracing is desired?

Answer 27

If nerve tracing is desired, 10-20 second scans

Question 28

(Impacted teeth — imaging settings) What scan time is typical for localization?

Answer 28

5-10 second scans

Question 29

(TMJ imaging settings) Which region is identified as the most dense part of the skull?

Answer 29

Temporal fossa is the most dense region of the skull

Question 30

(Implant workflow) What measurement around the implant is assessed on CT data?

Answer 30

Hounsfield units around implant

Question 31

(Implant workflow) What 3-D planning step involves trying out hardware virtually?

Answer 31

Volume with simulated implant(s)

Question 32

(Implant workflow — measurements) What dimensions should be measured?

Answer 32

Measurements for bone height and width

Question 33

(Implant workflow — cross-sectional) What slice spacing may be used for long-span edentulous regions?

Answer 33

Long-span edentulous regions may be sliced 2-5mm apart

Question 34

(Implant workflow — cross-sectional) What is the default slice protocol?

Answer 34

Default is typically 1mm slices of 1mm thickness

Question 35

(Implant workflow) Which views are used for sectional assessment?

Answer 35

Cross-sectional views

Question 36

(Implant imaging settings) What is the scan time for post-operative imaging?

Answer 36

5 to 10 seconds