Radiology Ch. 26 quiz questions
Cone-beam computed tomography (CBCT)
Term used to describe computer - assisted digital imaging in dentistry; this imaging technique uses a cone shaped x-ray beam to acquire information and present it in three dimensions.
Spatial resolution
A measurement of pixel size in multi planar reconstruction.
Three-dimensional volume rendering
A three-dimensional shape that is created from two-dimensional images.
Coronal plane
A vertical plane that divides the body into anterior and posterior sides; runs perpendicular to the ground.
Sagittal plane
A vertical plane that divides the body into right and left sides; runs perpendicular to the ground.
Field of View (FOV)
The area that can be captured when performing imaging procedures.
Contrast resolution
The number of gray-scale colors available to be chosen for each pixel in the image.
Multiplanar reconstruction (MPR)
The reconstruction of raw data into images when imported into viewing software to create three anatomical planes of the body.
Voxel
The smallest element of a three - dimensional image.
DICOM data
The universal format for handling, storing, and transmitting three - dimensional images.
True
True or False: A disadvantage of use of cone-beam data is that many dental professionals who incorporate CBCT into their practices have not had the training required to interpret anatomy beyond the maxilla and mandible.
True
True or False: A short exposure time decreases the chances for motion artifacts to occur, as well as encouraging a high level of patient cooperation.
False
True or False: Come-beam data has a 2:1 relationship with the anatomy.
True
True or False: If the field of view is small, findings or pathology in other regions of the oral and maxillofacial complex may be missed.
True
True or False: Three-dimensional imaging provides an in-depth image that gives dental professionals a more complete interpretive image than with two-dimensional scans of traditional imaging.
True
True or False: Three-dimensional imaging serves a number of diagnostic purposes for dental practitioners.
False:
True or False? Compared with traditional computed tomography (CT) procedures, cone-beam imaging provides A higher radiation dose for the patient.
