Clinical indication:
LBA, fracture stability
Region:
Intervertebral foramina L1 to L4, vertebral bodies, intervertebral joints, spinous processes, and L5 to S1 junction
Patient’s Position:
Patient is in erect position.
For flexion tell the patient to bend forward from lower back as much as possible by flexing their lower spine
For extension tell the patient to lean backward as much as possible by extending their lower spine
Cassette:
Size: 14’’x17’’ Orientation: Portrait
FFD/SID:
110cm
Central ray:
At the level of iliac crest
Grid:
Yes
Respiration:
Not related
Exposure factors:
70-80kVp 60-90mAs
Collimation:
Superiorly include the T12/L1 junction, inferiorly include sacral region and anteriorly to include the anterior border of lumbar vertebrae bodies posteriorly include spinous processes