Frequent question: What is the central ray angulation for an AP axial oblique projection of the cervical spine on a trauma patient?

Question Answer
The twining method demonstrates the Cervicothoracic region in which projection? lateral swimmers
What is the CR angulation for an AP axial projection of the cervical spine on a trauma patient? 15-20 cephalad

What is the central ray angle for the AP axial oblique projection of the cervical intervertebral foramina?

The central ray angle for the PA axial oblique projection of the cervical intervertebral foramina is. 15-20 degrees caudal.

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Where is the central ray directed for the AP axial oblique projection of the cervical spine?

To achieve the best angle, the central ray should be directed at an angle that parallels the plane of the mandible and then directed to just below the hyoid bone. This allows for discrepancies in the tilt of the head (flexion/extension of the cervical spine).

What is the central ray centering point for an AP oblique lumbar spine?

What is the central-ray centering point for an AP oblique lumbar spine? 2 inches medial to the elevated ASIS and 1 1/2 inches above the iliac crests. If the lumbar spine cannot be adjusted so it is horizontal for the lateral projection, the central ray should be angled: 5 degrees men, 8 degrees women – caudad.

How much is the body rotated for an AP axial oblique projection of the cervical intervertebral foramen?

To demonstrate the intervertebral foramen of the c-spine open, it is necessary to achieve adequate rotation of the vertebral column, usually at 45°.

What is the proper patient position for an AP oblique projection of the cervical spine?

XR 105 Midterm

Question Answer
what is the proper patient position for an AP oblique projection of the C spine? 45 degree posterior oblique position
what anatomical structures are best demonstrated by the AP oblique projections of the C spine? the intervertebral foramina FARTHEST from the film

Which projection of the cervical vertebral column requires an SID of 72 inches?

VERTEBRAL COLUMN

Question Answer
How should the IR be positioned for the AP axial projection of the cervical vertebral column? Centered to C4
Which projection of the cervical vertebral column requires an SID of 72 inches? Lateral
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What are the optimal tube angle and direction for AP oblique projections of the cervical spine?

The tube should be angled at 15 degrees.

Why is the chin extended for a lateral projection of the cervical spine?

Why is the chin extended for a lateral projection of the cervical spine? … The posterior cervical oblique projections demonstrate the intervertebral foramina and pedicles on the side closest to the image receptor.

What is the correct position of the Scottie dogs in the oblique position for lumbar spine exam?

Both sides should be examined for comparison. When the patient has been properly positioned in a 30°-45° oblique position, the articular process and facet joints have the appearance of “Scottie dogs.”

If the lumbar spine cannot be adjusted so it is horizontal for the lateral projection, the CR should be angled 5 degrees for men and 8 degrees caudad for women.

What is an advantage of taking a lumbar spine PA instead of AP?

The DAP reduction of approximately 27% and effective dose reduction of approximately 53% is achievable by using the PA instead of a standard AP projection in lumbar spine radiography. The change of the projection has no influence on the image quality (p = 0.690).

C-Spine positioning

Question Answer
The SID for a lateral c spine must be a minimum of how many inches? 60-70
The respiration phase for a lateral c spine is? suspension after expiration
Grandy method is? lateral C-spine
Where is the CR centered for a hyperflexion or hyperextension lateral c spine? C4
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What is the CR angle for an AP thoracic spine?

When the shoulder is immobile and cannot be depressed sufficiently for the cervicothoracic region lateral projection (swimmer’s technique), the central ray is angled: 0 degrees. What is the central-ray angle for an AP thoracic spine? 20 degrees.

Cards

Term Grashey is most likely ordered by the doctor to display what feature? Definition Glenoid Cavity
Term What respiration do you use for a lateral C-spine (Grandy Method)? Definition Suspend at the end of full expiration
Term For an AP axial Oblique C-spine, what should the SID be? Definition 60 – 72 in. SID
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