Thoracic (Dorsal) Spine X-Ray Master Guide

Comprehensive Clinical Reference for Standard, Specialized, and Advanced Thoracic Spine Views

Routine & Essential Views

1. AP View (Thoracic Spine)Standard

Patient PositionStanding or supine erect, back against grid, arms down by sides, knees flexed if supine to flatten spinal curve.

Beam DirectionPerpendicular to T7 (approx. midway between jugular notch and xiphoid process).

Clinical IndicationEvaluating thoracic vertebral alignment, bone density, scoliosis, and fractures from T1 to T12.

2. Lateral View (Thoracic Spine)Standard

Patient PositionLateral recumbent or standing, arms raised overhead, spine kept parallel to image receptor.

Beam DirectionPerpendicular to T7 (centered at posterior half of thorax).

Clinical IndicationAssessment of thoracic kyphosis, vertebral body height, disc spaces, and compression fractures.

3. RPO / LPO Oblique ViewsOblique

Patient PositionPatient rotated 20° from true lateral (or 70° from AP position), supporting blocks under back/chest.

Beam DirectionPerpendicular to T7 midpoint.

Clinical IndicationVisualizing zygapophyseal (facet) joints and posterior elements of the thoracic spine.

4. Swimmer’s Lateral ViewSpecial

Patient PositionLateral position; arm closest to detector raised overhead, opposite arm depressed downward.

Beam DirectionHorizontal central ray directed at cervicothoracic junction (C7-T4).

Clinical IndicationClear visualization of upper thoracic vertebrae (T1 to T4) normally obscured by shoulder mass.

5. Breathing / Orthostatic LateralAdvanced

Patient PositionStandard lateral stance with low exposure time and continuous shallow breathing (orthostatic).

Beam DirectionHorizontal central ray to T7.

Clinical IndicationBlurs out overlying lung markings and rib shadows to improve clarity of mid-to-lower thoracic spine.

6. T-L Junction Lateral ViewTargeted

Patient PositionLateral recumbent or standing, optimized specifically for the lower thoracic and upper lumbar spine.

Beam DirectionPerpendicular to T12-L1 junction.

Clinical IndicationTargeting fractures or pathology specifically at the thoracolumbar junction area.

7. T-L Junction AP ViewTargeted

Patient PositionSupine or erect, focused specifically on the lower thoracic and upper lumbar segments.

Beam DirectionPerpendicular to L1 (midway between xiphoid process and iliac crest).

Clinical IndicationDetailed AP evaluation of the thoracolumbar transition zone where fractures frequently occur.

8. Full Spine Scoliosis View (PA/AP)Special

Patient PositionLong standing erect position using a 36-inch (90 cm) long cassette or multiple stitched digital detectors.

Beam DirectionCentered mid-spine at normal breathing suspension.

Clinical IndicationAssessment and Cobb angle measurement of spinal curvature anomalies (Scoliosis/Kyphosis).

9. Trauma Cross-Table LateralEmergency

Patient PositionPatient lies strictly supine on a trauma spine board; do not move or logroll the patient.

Beam DirectionHorizontal cross-table ray centered to the mid-thoracic region.

Clinical IndicationEmergency evaluation of suspected thoracic spine fractures in critical trauma patients.

10. Flexion & Extension LateralFunctional

Patient PositionPatient actively bends forward (flexion) and arches backward (extension) while standing/sitting.

Beam DirectionHorizontal ray centered at T7 level.

Clinical IndicationEvaluating segmental spinal stability, range of motion, and fixation following injury or surgery.

📌 Quick Jump Directory (Thoracic Views)