WorksheetsCBCT
Total questions: 11
Worksheet time: 6mins
CBCT beam is ... shaped
fan
cone
triangle
Smaller field of view (FOV) leads to ... patient exposure
increased
decreased
the size of FOV doesn't matter
The smallest distinguishable individual volume elements of a 3D image is ...
(a)
The ... the voxel size, the ... the image details
smaller - better
smaller - worse
bigger - better
The process the software uses to produce the image is termed ...
projection
back projection
attenuation
Scattered photons in CBCT leads to ...
higher image contrast
decreased image contrast
quantum noise
Partial volume averaging can be resolved by ...
increasing voxel size
decreasing voxel size
Undersampling occurs when too few frames are taken and leads to aliasing effect
True
False
When lower energy photons are absorbed in preference to higher energy photons, this results in ...
beam hardening
partial volume averaging
cone beam effect
undersampling
CBCT is the imaging modality of choice for soft tissues
True
False
It's okay to use CBCT for the detection of caries
True
False
