Ch. 9 Cervical Spine Flashcards
What are the five projections for C-Spine?
- Lateral Grandy Method pg. 447
- (2) AP Axial Oblique RPO and LPO pg. 451
- AP Axial pg.445
- AP Open Mouth pg. 442
What is the central ray for AP C1-C2 Open Mouth and breathing instructions?
- Perpendicular to the center of the IR, Enters the patient at the midpoint of open mouth
- Respiration: instruct the patient to keep their mouth wide open and to say “Ah”
AP Axial C1-C2, Open Mouth:
What is the SID and part position?
SID 40-48 inches; 30 inches may be used
- Patient MSP of the head perpendicular to the plane of the table for supine or bucky board if upright
- Align the edge of the upper incisors and mastoid tip perpendicular to the IR
- Mouth open as wide as possible
Collimation for AP Open Mouth?
5 x 5 inches
What structures are shown on an AP Open Mouth Projection?
Atlas and Axis through the open mouth
Evaluation Criteria for AP Open Mouth:
Pg. 443
AP Axial C-Spine:
SID and Patient / Part Position?
SID 40-48 inches / 15-20 degree cephalad angle
- Supine or Upright
- Shoulders in the same horizontal plane to prevent rotation
- MSP aligned with the long axis of the IR
- Extend the chin enough so that the occlusal plane is perpendicular to the IR
What is the central ray and respiration for AP Axial C-SPine projection?
Collimation?
- Directed through C4 at an angle of 15 to 20 degrees cephalad
- Suspend
- 10 inches lengthwise and 1 inch beyond the skin shadow on the sides
Structures shown on an AP Axial C Spine:
pg. 446
Evaluation Criteria for AP Axial C Spine:
pg. 446
Lateral Projection Grandy Method C-Spine:
What is the SID and Patient/Part Position?
- 60-72 inches SID
- Upright, seated, or standing
- Top of the IR is about 1 inches above the external acoustic meatus (EAM)
- Center the coronal plane that passes through the mastoid tips to the midline of the IR
- Shoulders in the same horizontal plane, relaxed down
- Chin elevated and mandible protruded
Lateral Projection Grandy Method C-Spine:
Central Ray, Respiration, and Collimation?
- CR horizontal and perpendicular to C4
- 10 x 12 inches
- Suspend respiration at the end of full expiration to obtain maximum depression of the shoulders
Structures shown and Evaluation Criteria for Lateral Projection Grandy Method C Spine
Pg. 448
AP Axial Oblique RPO and LPO C -Spine:
What is the SID and Patient/Part Position?
60-72 inches SID / 15 - 20 degree cephalad angle
- Supine or Upright
- Adjust the head and body at a 45-degree angle, and center the cervical spine to the midline of the body
AP Axial Oblique RPO and LPO C -Spine:
Central Ray, Collimation and respiration?
- CR directed to C4 at a cephalad angle of 15-20 degrees
- 10 x 12 inches
- Suspend
AP Axial Oblique RPO and LPO C -Spine:
Structures Shown and Elevation Criteria
Pg. 450
How many bones make up the cervical spine?
Seven, C1-C7
An AP Oblique projection of the cervical spine is taken; how many degrees is the patient rotated?
45 Degrees
What projection of the C Spine shows the odontoid process?
AP Open Mouth
How is the CR angled and projected for the lateral projection of the cervical spine?
horizontal and perpendicular to C4
What projection of the C spine shows the intervertebral foramina?
AP Axial Oblique
The Axis is ___ and the Atlas is ____
C2, C1
If an AP Axial projection of the cervical spine is taken. which position would the patient be in to show the right intervertebral foramina?
LPO
If the intervertebra foramen is narrowed on an axial oblique projection of the C spine, how was the patient rotated?
Less then 45 degrees, Under
