Pelvis Positioning

Question 1

What are the structures seen for an AP pelvis?

Answer 1

• AP projection of entire pelvis along with proximal femora
• Greater trochanters in profile
• Symmetric obturator foramina
• Lesser trochanter not visulaized

Question 2

What breathing technique is used for pelvis views?

Answer 2

Suspend respiration

Question 3

How is the patient positioned for an AP pelvis?

Answer 3

• Patient supine on table
• Unless contraindicated, rotate feet and lower limbs 15-20 degrees internally
• Heels should be 8-10” apart

Question 4

How many degrees is the feet and lower limbs rotated for an AP pelvis?

Answer 4

15-20 degrees internally

Question 5

Where is the CR for an AP pelvis?

Answer 5

Perpendicular to MSP at level 2” inferior to ASIS or 2” superior to pubic symphysis

Question 6

Where is the IR for an AP pelvis?

Answer 6

1-1 1/2” above the iliac crest

Question 7

What IR is used for pelvis views?

Answer 7

14x17

Question 8

What SID is used for pelvis views?

Answer 8

40”