Lab Testing Lumbar and Sacrum

Lumbar- AP

• Patient Position: Supine; knees flexed

• SID: 40”

• CR Center: 2 inches above iliac crest

• CR Angle: None

• Collimation: 11×14

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend on expiration

Lumbar- Lateral

• Patient Position: True lateral; knees bent; lead mat behind patient, place sponge

• SID: 40”

• CR Center: 2 in above iliac crest

• CR Angle: None

• Collimation: 11×14

• Technique: 75–80 kVp, 60–160 mAs

• Breathing: Suspend on expiration

Lumbar- Posterior Oblique

• Patient Position: Body rotated 45°; shoulders and hips rotated equally

• SID: 40”

• CR Center: 2 in above iliac crest and 2 inches medial to upside ASIS

• mark downside

• CR Angle: None

• Collimation: 11×14

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend on expiration

Lumbar- L5- S1 spot

• Patient Position: Supine

• SID: 40”

• CR Center: At ASIS

• CR Angle: 30° cephalad (male) / 35° cephalad (female)

• Collimation: 8×10

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend

Lumbar- lateral L5 S1 spot

• Patient Position: True lateral; support under waist; lead mat

• SID: 40”

• CR Center: 2in below crest and 2in posterior to ASIS

• CR Angle: 5–8° caudad (5° male, 8° female)

• Collimation: 8×10

• Technique: 75–80 kVp, 60–160 mAs

• Breathing: Suspend

Lumbar- Flexion

• Patient Position: Lateral; bend forward

• SID: 40

• CR Center: 2 in above iliac crest

• CR Angle: None

• Collimation: 11×14

• Technique: 75–80 kVp, 60–120 mAs

• Breathing: Suspend

Lumbar- Extension

• Patient Position: Lateral; bend backward

• SID: 40

• CR Center: 2 in above iliac crest

• CR Angle: None

• Collimation: 11×14

• Technique: 75–80 kVp, 60–120 mAs

• Breathing: Suspend

Sacrum- AP Axial

• Patient Position: Supine

• SID: 40”

• CR Center: 2in below ASIS

• CR Angle: 15° cephalad

• Collimation: 10×12

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend

Coccyx- AP Axial

• Patient Position: Supine

• SID: 40”

• CR Center: 2in below ASIS

• CR Angle: 10° caudad

• Collimation: 8×8

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend

Sacrum & Coccyx- Lateral

• Patient Position: True lateral; knees bent; lead mat

• SID: 40”

• CR Center: 3-4 in posterior to ASIS

• CR Angle: None

• Collimation: 10×12

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend

SI Joints- AP Axial

• Patient Position: Supine

• SID: 40”

• CR Center: 2 inches below ASIS

• CR Angle: 35° cephalad

• Collimation: 10×12

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend

SI joints- R&L Oblique

• Patient Position: 25–30° posterior oblique; affected side elevated

• SID: 40”

• CR Center: 1 inch medial to upside ASIS

• mark upside

• CR Angle: None

• Collimation: 8×10

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend

Scoliosis- PA

• Patient Position: Erect, standing straight

• SID: 40

• CR Center: none

• CR Angle: None

• Collimation: 14×17, Include 1 in below crest

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend

Scoliosis- Lateral

• Patient Position: True lateral; arms raised

• SID: 40

• CR Center: none

• CR Angle: None

• Collimation: 14×17, Include 1in below crest

• Technique: 75–80 kVp, 60–160 mAs

• Breathing: Suspend

Scoliosis- R&L Bending

• Patient Position: Erect or supine; bend maximally left and right (remove shoes)

• SID: 40

• CR Center: none

• CR Angle: None

• Collimation: 14×17, Include 1 inch below crest

• Technique: 75–80 kVp, ~32 mAs

• Breathing: Suspend