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