Ch. 8b - Cervical and Thoracic Spine solved &
updated (GUARANTEED SUCCESS)
In addition to the gonads, which other radiosensitive organs are a greatest concern during cervical and
thoracic spine radiography? - answer thyroid, parathyroid glands, and breasts
True/false: when using digital imaging for spine radiography, it is important to use close collimation,
grades, and lead masking. - answer True
To ensure that the intravertebral joint spaces are open for lateral thoracic spine projections, it is
important to: - answer Keep the vertebral column parallel to the IR
For lateral and oblique projections of the cervical spine, it is important to minimize magnification and
maximize detail. This can be done by: - answer using a small focal spot & increasing SID
Fracture through the pedicles and anterior arch of C2 with forward displacement on C3 - answer
Hangman's fracture
Abnormal or exaggerated convex curvature of the thoracic spine - answer kyphosis
Abnormal lateral curvature of the spine - answer scoliosis
List the conventional x-ray exam and/or projections performed for scoliosis - answer Erect AP or PA
spine, lateral spine including bending
List the conventional x-ray exam and/or projections performed for HNP - answer CT and MRI; AP and
lateral of cervical and/or thoracic
True/false: performing the cervicothoracic projection is often required to demonstrate the C7/T1 region
for the obese patient - answer True
, Which to landmarks must be aligned for an AP open mouth projection - answer Lower margin of upper
incisors and base of skull
True/false: the tip of the odontoid process does not have to be demonstrated on the AP open mouth
projection because it is best seen on the lateral production - answer False
What is the purpose of the 15 to 20° cephalad angle for the AP axial projection of the cervical spine -
answer Demonstrate intravertebral disc space
For an AP axial of the cervical spine, a plane through the tip of the mandible and the _________ should
be parallel to the angle that central ray - answer Base of skull
True/false: less CR angle is required for the AP axial projection of the cervical spine if the examination is
performed supine rather than erect - answer True
What are two important benefits of using a SID 60 to 72 inches for the lateral cervical spine projection? -
answer Compensates for increased OID and provides for greater spatial resolution
What CR angulation (amount and direction) must be used with a posterior oblique projection for the
cervical spine? - answer 15° to 20° cephalad to C4
Which foramina are demonstrated with a LPO position of the cervical spine - answer Right intravertebral
foramina
Which foramina are demonstrated with a LAO position of the cervical spine - answer left intervertebral
foramina
In addition to extending the chin, which additional positioning technique can be performed to ensure
that the mandible is not superimposed over the upper cervical vertebrae for oblique projections? -
answer Elevate chin so acanthiomeatal (AML) is parallel with floor and rotate skull into near lateral
position
updated (GUARANTEED SUCCESS)
In addition to the gonads, which other radiosensitive organs are a greatest concern during cervical and
thoracic spine radiography? - answer thyroid, parathyroid glands, and breasts
True/false: when using digital imaging for spine radiography, it is important to use close collimation,
grades, and lead masking. - answer True
To ensure that the intravertebral joint spaces are open for lateral thoracic spine projections, it is
important to: - answer Keep the vertebral column parallel to the IR
For lateral and oblique projections of the cervical spine, it is important to minimize magnification and
maximize detail. This can be done by: - answer using a small focal spot & increasing SID
Fracture through the pedicles and anterior arch of C2 with forward displacement on C3 - answer
Hangman's fracture
Abnormal or exaggerated convex curvature of the thoracic spine - answer kyphosis
Abnormal lateral curvature of the spine - answer scoliosis
List the conventional x-ray exam and/or projections performed for scoliosis - answer Erect AP or PA
spine, lateral spine including bending
List the conventional x-ray exam and/or projections performed for HNP - answer CT and MRI; AP and
lateral of cervical and/or thoracic
True/false: performing the cervicothoracic projection is often required to demonstrate the C7/T1 region
for the obese patient - answer True
, Which to landmarks must be aligned for an AP open mouth projection - answer Lower margin of upper
incisors and base of skull
True/false: the tip of the odontoid process does not have to be demonstrated on the AP open mouth
projection because it is best seen on the lateral production - answer False
What is the purpose of the 15 to 20° cephalad angle for the AP axial projection of the cervical spine -
answer Demonstrate intravertebral disc space
For an AP axial of the cervical spine, a plane through the tip of the mandible and the _________ should
be parallel to the angle that central ray - answer Base of skull
True/false: less CR angle is required for the AP axial projection of the cervical spine if the examination is
performed supine rather than erect - answer True
What are two important benefits of using a SID 60 to 72 inches for the lateral cervical spine projection? -
answer Compensates for increased OID and provides for greater spatial resolution
What CR angulation (amount and direction) must be used with a posterior oblique projection for the
cervical spine? - answer 15° to 20° cephalad to C4
Which foramina are demonstrated with a LPO position of the cervical spine - answer Right intravertebral
foramina
Which foramina are demonstrated with a LAO position of the cervical spine - answer left intervertebral
foramina
In addition to extending the chin, which additional positioning technique can be performed to ensure
that the mandible is not superimposed over the upper cervical vertebrae for oblique projections? -
answer Elevate chin so acanthiomeatal (AML) is parallel with floor and rotate skull into near lateral
position
