Clinical indication:
Fracture, spondylolisthesis, bone lesion, osteoporosis, foreign body
Region:
Intervertebral foramina L1 to L4, vertebral bodies, intervertebral joints, spinous processes, and L5 to S1 junction
Patient’s Position:
Position the patient in lateral recumbent position.
Place a pillow below the patient’s head and knee flexed
Both hands are flexed at right angle to the chest
Make sure that there is no rotation of pelvis and torso
Align mid coronal plane to the midline of the table
Cassette:
Size: 14’’x17’’ Orientation: Portrait
FFD/SID:
100cm
Central ray:
Central ray is 2.5cm above the iliac crest and perpendicular to IR
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