CRs ribs

ap above diaphragm

• CR 3-4 inches below jugular notch

• Expose on inspiration

ap below diaphragm

CR midway between xiphoid process and lower

ribs

• Expose on expiration

evaluation ap above diaphragm

1st to 10th posterior

ribs visualized above

diaphragm

• No motion

• No rotation

• Optimal exposure

factors

evaluation ap below diaphragm

10th to 12th ribs

visualized

• No motion

• No rotation

• Optimal exposure

factors

Posterior or Anterior Oblique: Ribs Above Diaphragm

• 45° oblique

• CR to T7 level

Posterior Oblique: Recumbent

45° oblique

• CR 3-4” below jugular notch (T-7) midway

between spine and lateral margin of ribs

RAO sternum

15° to 20° RAO

• CR to center of sternum (1 inch/2.5 cm to left

of midline and midway between jugular notch

and xiphoid process)

Evaluation RAO sternum

Entire sternum

visualized

• Superimposed over

heart

• Correct rotation

• Optimal exposure

factors

Lateral sternum

CR to center of sternum

• 72 inches SID

PA SC jts

True PA

• CR perpendicular to T2-T3 (3 inches distal to

vertebra prominens)

Evaluation: PA SC jts

• Medial portion of

clavicles and SC

joints visualized

• No rotation

• Optimal exposure

factors