RAD 245- AP Obliques (RPO and LPO) Lumbar Spine- Chapter 9- Module 3

Question 1

Where is the CR centered for these projections?

Answer 1

Perpendicular CR 2 inches above elevated ASIS at the level of 1.5 inches superior to the illiac crest

Question 2

How much is the patient rotated?

Answer 2

45 degrees

Question 3

Where are the zygapopyseal joints located in the AP oblique projections (LPO, RPO) in relation to the IR?

Answer 3

Closest to the IR

Question 4

Where are the zygapopyseal joints located in the PA oblique projections (LAO, RAO) in relation to the IR?

Answer 4

Farthest away from the IR

Question 5

When the scotty dog face is to the front of the vertebra, how is the rotation?

Answer 5

Insufficient

Question 6

When the scotty dog face is in the middle of the vertebra, how is the rotation?

Answer 6

Excessive

Question 7

How is the obliquity when the zygapophyseal joint is closed, the the pedicle (eye) is situated closer to the lateral vertebral body border, and more of the lamina (body of the Scottie dog) is demonstrated?

Answer 7

Insufficient

Question 8

How is the obliquity when the zygapophyseal joint is open, the the pedicle (eye) is situated closer to the vertebral body midline, and less of the lamina (body of the Scottie dog) is demonstrated?

Answer 8

Excessive