Thoracic cavity (including whole spine) centering points

Question 1

PA chest

Answer 1

Level of T6, mid-sagittal plane

In line with ends of scapula

Question 2

Lateral chest

Answer 2

Level of T7, mid-axillary line

Question 3

AP clavicle

Answer 3

mid-shaft of clavicle

Question 4

Infero-superior clavicle

Answer 4

mid-shaft of clavicle

Question 5

Lateral C-spine

Answer 5

C4, mid-coronal plane

Below the mastoid process at the level of the prominence of the thyroid cartilage

Question 6

AP C-spine

C3-C7

Answer 6

C4/C5, mid-sagittal plane

Beam is directed 5-15 degree cranially

Centred in the midline just below the prominence of the thyroid cartilage

Question 7

C-spine peg view

Answer 7

C2 through the mouth

Question 8

Lateral thoracic spine centering point

Answer 8

level of T7, mid-axillary line

This is usually just below the inferior angle of the scapula if the patients arms are raised

Question 9

AP thoracic spine

Answer 9

2.5cm inferior to sternal angle

Question 10

Lateral lumbar spine

Answer 10

level of lower costal margins, 7.5cm anterior to lumbar spinous processes

Question 11

AP lumbar spine

Answer 11

level of lower costal margins, mid-sagittal plane

L3

Question 12

Lumbar spine - oblique

Answer 12

Patient rotated 45 degrees
At the level of the lower costal margin
Centred towards the mid-clavicular line