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spine · AP
Thoracic Spine AP
Patient supine with knees flexed.
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AI Patient · KV Sir
How to perform this view
- 01
Supine with knees flexed to reduce kyphosis.
- 02
MSP to midline of table.
- 03
Top of IR 4 cm above shoulders.
- 04
CR at T7 (midway jugular notch & xiphoid).
- 05
Expose on expiration.
Anatomical & patient position
Patient: Patient supine with knees flexed.
Part: MSP centred; anode-heel effect - cathode toward feet.
Central ray & centring point
Perpendicular to T7.
Exposure factors
kVp
75-85 kVp
mAs
10-20 mAs
SID
100 cm
IR size
35 x 43 cm portrait
Grid
Yes
Respiration
Suspended expiration
Clinical indications
- Thoracic fractures, kyphosis, scoliosis
- Metastases, osteoporosis
Contraindications & precautions
- Pregnancy (relative) - confirm LMP / 10-day rule, justify exposure and shield where possible
- Suspected unstable spinal injury - do NOT move neck/spine; use cross-table lateral first and keep collar
Structures shown & evaluation criteria
- T1-T12 vertebral bodies
- Intervertebral spaces
- Spinous processes midline