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Term 2 : Dental Radiography > CHAPTER 26: 3D DIGITAL IMAGING > Flashcards

CHAPTER 26: 3D DIGITAL IMAGING Flashcards

1
Q

What year was the CBCT introduced ?

A

1999

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2
Q

what is CBCT?

A

Cone-beam computed tomography

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3
Q

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.

A

CBCT

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4
Q

The universal format for handling, storing, and transmitting three-dimensional images; the acronym refers to Digital Imaging and Communications in Medicine.

A

Dicom Data

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5
Q

The area that can be captured when performing imaging procedures.

A

Field of view (FOV)

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6
Q

The reconstruction of raw data into images when imported into viewing software to create three anatomic planes of the body.

A

Multiplanar reconstruction (MPR)

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7
Q

A horizontal plane that divides the body into superior and inferior parts; runs parallel to the ground.

A

Axial Plane

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8
Q

A vertical plane that divides the body into anterior and posterior sides; runs perpendicular to the ground.

A

Coronal plane

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9
Q

A vertical plane that divides the body into right and left sides; runs perpendicular to the ground.

A midsagittal plane describes a plane that runs through the midline of the body.

A

sagital plane

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10
Q

The number of gray-scale colors available for each pixel in the image.

A

resolution contrast

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11
Q

A measurement of pixel size in multiplanar reconstruction.

A

resolution spatial

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12
Q

An image that demonstrates the anatomy in three dimensions.

A

three dimensional digital imaging

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13
Q

A three-dimensional shape that is created from two-dimensional images.

A

three dimensional volume rendering

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14
Q

The smallest element of a three-dimensional image; also referred to as volume element or three-dimensional pixel.

A

Voxel

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15
Q

Anatomic features within the FOV provide accurate dimensional measurements of the patient with a : ratio relationship

A

1:1

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16
Q

The volume of data produced is similar to medical CT, but CBCT uses much (less/more) radiation to acquire the images.

A

less

17
Q

Most dentists who use the CBCT imaging techniques (have/ do not have) the formal training that is required to interpret data on anatomic areas beyond the maxilla and the mandible.

A

do not have

18
Q

Radiology (AAOMR) recommends that CBCT images be interpreted only by a board-certified oral and maxillofacial radiologist, or by a dentist with adequate training and/or experience. TRUE OR FALSE

A

true

19
Q

a nonprofit organization that has developed standards applicable to the minimal requirements for optimum patient care when using dental computed tomography.

A

Intersocietal Accreditation Comission (IAC)

20
Q

The essential components for three dimensional imaging system include:

A

CBCT machine,

computer,

viewing software

21
Q

Prior to installation of a CBCT unit, a radiation physicist is contacted to evaluate the proper physical space in the dental office to house a CBCT machine. TRUE OR FALSE

A

TRUE

22
Q

Scan times with the CBCT machine varie between how many seconds

A

7 and 30 seconds

23
Q

CBCT examinations should be performed only when necessary to provide information that cannot be provided using other imaging modalities. true or false

A

true

24
Q

Some of the common uses of three-dimensional imaging include the following:

A

implant placement

extraction or exposure of impacted teeth

definition of anatomic structures

endodontic assessment

airway and sinus analysis

evaluation of TMJ disorders

orthodontic evaluation

evaluation of lesions and abnormalities

trauma evaluation

25
Q

Advantages of Three-Dimensional Digital Imaging:

A

Lower radiation dose

brief scanning time

anatomically accurate images

ability to save and easily transport images.

26
Q

Disadvantages of Three-Dimensional Digital Imaging

A

Patient movement and artifacts

size of FOV

Cost of equipment

lack of training in interpretation of image data

27
Q

provides the dental professional with a more complete interpretive image than does traditional dental imaging, which can only provide two dimensions.

A

three dimensional imaging

Term 2 : Dental Radiography (29 decks)

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