Deck 16: Advanced Imaging Systems

Question 1

CT images can be sent by _________ to specialists for consultation.

Answer 1

phone

Question 2

The CT number for air is:

A)-1000
B)1000
C)0
D)500

Answer 2

-1000

Question 3

___________ sources of energy are used for CT scanning than for MRI.

Answer 3

Different

Question 4

The energy source for CT scans is:

A)gamma radiation
B)radio waves
C)ultrasound
D)x-radiation

Question 5

The wavelengths used in MRI are:

A)long
B)cannot cause ionization
C)do not produce a radiation dose to the patient
D)all of the above

Question 6

CT images for implant planning should have ________ and ___________ views.

Question 7

MRI actually measures:

A)electron density
B)proton density
C)neutron density
D)all of the above

Question 8

A CT scan taken in the axial plane can be reformatted to the _______ and _________ planes.

Question 9

Water makes up approximately:

A)50% of human tissue
B)10% of human tissue
C)70% of human tissue
D)1% of human tissue

Question 10

With the film-screen system, __________ exposures are made to obtain the diagnostic information contained in one CT scan.

Question 11

CBVT (CBCT)imaging may be utilized in dentistry for all of the following conditions EXCEPT:

A)evaluation of interproximal caries
B)implant treatment planning
C)oral pathologies
D)evaluation of impacted teeth

Question 12

CT scans are viewed in all of the following planes EXCEPT:

A)sagittal
B)axial
C)midsagittal
D)coronal