Lateral L5-S1 lumbar

Question 1

What is the central ray angle and direction? Be specific

Answer 1

5 degrees caudad for men, 8 degrees caudad for women big hips
Big waist 5 degrees cephalic men, 8 degrees cephalic women
If spine is straight, no angle

Question 2

What is the central ray location?

Answer 2

2” posterior to ASIS, 1.5” inferior to iliac crest