Myelography

Question 1

What is demonstrated in a myelogram?

Answer 1

CNS structures within vertebral canal

Question 2

What types of myelograms are performed?

Answer 2

Cervical, thoracic, lumbar

Question 3

What type of contrast media is used for a myelogram (be specific)? Why?

Answer 3

Non ionic water soluble, body reabsorbs contrast

Question 4

What is the atomic number for iodine?

Answer 4

53

Question 5

At what level is the needle inserted?

Answer 5

L2-L3 or L3-L4

Question 6

What type of injection is performed?

Answer 6

Intrathecal

Question 7

What documentation must be performed for this contrast?

Answer 7

type, lot#, exp. date

Question 8

How many times should the contrast bottle be checked prior to injection?

Answer 8

3 times

Question 9

What pathology may be demonstrated?

Answer 9

hydrocephalis

Question 10

What is the role of the radiographer?

Answer 10

Set up

Question 11

What preliminary images should be taken?

Answer 11

x-table lateral, PA

Question 12

What post-fluoro images will be taken?

Answer 12

PA ,lateral, obliques

Question 13

How much contrast is injected?

Answer 13

9-12mm

Question 14

Why must the chin be elevated?

Answer 14

Dont want the contrast to go into brain

Question 15

What is the name of the tapered terminal end of the spinal cord?

Answer 15

Conus medularis

Question 16

The above is at what level?

Answer 16

L1-L2

Question 17

What is the cauda equina?

Answer 17

Bundle of nerves

Question 18

What other modality may be performed after x-ray?

Answer 18

CT

Question 19

What image may be performed to demonstrate this area? What is the CR location?

Answer 19

Conus projection
CR: PA, mps level of T12-L1

Question 20

How long will the patient be kept in recovery after the exam? Why?

Answer 20

4-8 hours

Question 21

According to the textbook/lecture, who should the patient be positioned on the cart after the exam?

Answer 21

30-45 degrees