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Radiographic Procedures 2 > Lecture 4-Lumbar Spine > Flashcards

Lecture 4-Lumbar Spine Flashcards

1
Q

Label the image

A
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2
Q

True or false?

The lateral lumbar spine is closer to the mid coronal plane

A

True

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3
Q

Label 1-6

A
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4
Q

What is one major consideration you have to make when examining a patient with a spinal fusion?

A

Not to use AEC

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5
Q

What is this image showing?

A

A pre and post-op spinal fusion

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6
Q

What is being shown in this image?

A

A compression fracture; likely from falling or jolt

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7
Q

What patient preparation needs to be made prior to lumbar spine imaging?

A
  1. All jewelry and body piercings in the area to be exposed should be removed if possible
  2. Remove all clothing; top and bottom, except underclothes and offer a gown to be tied in the back -
  3. give pants if available
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8
Q

Why do we flex the knees in an AP L-spine?

A

To decrease the lordotic curve, making it easier for the diverging photons to get through joint spaces

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9
Q

What is easier for a paitent having lumbar imaging; erect or recumbant?

A

Erect

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10
Q

What should we see on an AP or PA L-Spine?

A
  1. T11 or T12 to mid sacrum visualized
  2. No rotation
  3. Collimation width to SI joints to see psoas muscle
  4. SI Joints equidistant from the vertebral column
  5. Spinous processes in the midline
  6. Open intervertebral joints
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11
Q

What projection is this?

A

An AP or PA L spine

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12
Q

Why is PA positioning better for AP/PA lumbar spine imaging?

A

-Angle of the joint spaces line up with the diverging photons
-In AP, the diverging photons do not line up with joint space

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13
Q

True or false

The lumbar spine is more posterior than the thoracic spine.

A

False. The lumbar spine is more anterior than the thoracic spine.

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14
Q

What is the lead strip used for?

A

Back scatter and secondary radiation

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15
Q

True or false?

It is okay to have the lead strip in the light, just as long as it doesn’t cover the anatomy.

A

FALSE

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16
Q

What should be seen on a lateral L spine?

A
  1. Min. T12 to distal sacrum demonstrated
  2. Intervertebral disk spaces open
  3. Intervertebral foramina open
  4. No rotation
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17
Q

How do you asses for rotation on an L spine?

A

-Asses for rotation by looking at posterior body surfaces

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18
Q

What happened in the positioning that lead to this image?

A

The CR was not directed perpendicular to the spine

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19
Q

At what angle should your central ray be coming in for the L5/S1 “SPOT” view?

A

Make sure angle comes in at the same line as the 2 iliac crests at the PSIS (make sure iliac crests are superimposed)

20
Q

What should be seen on a lateral L5/S1 view?

A
  1. L4, L5, and S1 demonstrated and centered
  2. L5-S1 joint space open
21
Q

What projection is this?

A

Lateral L5-S1

22
Q

What does an AP Oblique lumbar spine demonstrate?

A

The z-joints on the side that is down (L or R)

23
Q

What does a PA oblique lumbar spine demonstrate?

A

The z-joints on the side that is up (L or R)

24
Q

What is the arrow pointing to?

A

The Z joints within the lumbar spine

25
Q

What makes up the Z joints in the lumbar spine?

A

Superior articulating process below and inferior articulating process above

26
Q

What body position is this and what side is this demonstrating?

A

LPO demonstrating left side

27
Q

Assuming the image wasnt flipped, what side is being demonstrated?

A

The right side

28
Q

Which way is the patient facing?

A

Right

29
Q

Label 1-6

A
30
Q

In relation to the scottie dog, what is the;
1. Ear
2. Eye
3. Neck
4. Nose
5. Leg

A

Ear=Superior articular proceses
Eye=Pedicle
Neck=Pars interarticualaris
Nose= Transverse process
Leg=Inferior articular process

31
Q

Label A-D

A
32
Q

What should be seen on an oblique L spine?

A
  1. L1 to S1 demonstrated
  2. “Scottie dogs” and open zygapophyseal joints
  3. Pedicle near center of vertebral body
33
Q

What does it mean if the pedicle is too anterior in an oblique L spine?

A

The patient is underrotated

34
Q

What does it mean if the pedicle is too posterior in an oblique L spine?

A

The patient is overrotated

35
Q

What exam is done for a pre and post op patient with a spinal fusion in the L spine?

A

Hyperflexion and Hyperextention

36
Q

What should be seen on an L-spine hyperflexion position?

A
  1. True lateral position of lumbar spine in flexion (fairly straight)
  2. Assess stability and mobility of the spinal fusion site
  3. No motion
37
Q

What position is this?

A

Hyperflexion of the L spine

38
Q

What should be seen on a lateral hyperextension of the L spine?

A
  1. True lateral position of lumbar spine in extreme extension
  2. Assess stability and mobility of the spinal fusion site
  3. No motion
39
Q

What position is this?

A

Hyperextension of the L spine

40
Q

Is this a under, over or proper rotation of an oblique L spine?

A

Under rotation

41
Q

Is this a under, over or proper rotation of an oblique L spine?

A

Proper rotation

42
Q

Is this a under, over or proper rotation of an oblique L spine?

A

Over rotation

43
Q

Which projection for the obliques of the L spine is better for the image? Why?

A

The PA; because the diverging photons match the angle of the joint space

44
Q

What are the “twin peaks” in the lumbar vertebra?

A

The superior articulating processes of the vertebra

45
Q

How can you tell which way the patient is obliqued in a lateral lumbar spine?

A

Look a the bigger “peak” (S.A.P.), and that will be the side furthest from the IR.

46
Q

Is the patient obliqued properly?

A

No, the patient is over obliqued

Radiographic Procedures 2 (18 decks)

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