Thoracic spine

Question 1

AP position

Answer 1

Supine.
MSP to long axis of table.
Flex knees to reduce curve of spine and puts it closer to IR.

Question 2

CR for thoracic spine

Answer 2

Perpendicular to T7. Like the chest but collimator narrow for the spine.

Question 3

Routine Thoracic

Answer 3

AP and Lateral

Question 4

Structures for AP thoracic

Answer 4

Thoracic bodies, intervertebral disk spaces, transverse processes, costovertebral articulations. C7-L1

Question 5

Lateral thoracic position

Answer 5

Recumbent in lateral position with shoulders and hips on top of each other.
Place sponge under waist to adjust spine parallel to IR.
Mid coronal plane to IR and CR.
Place lead behind back to decrease scatter.

Question 6

Lateral thoracic structures

Answer 6

Thoracic bodies, intervertebral disk space, intervertebral Foramina.
T1-L1

Question 7

Which obliques demonstrate the right zygapophyseal joints?

Answer 7

LPO 70 degrees and RAO 70 degrees

Question 8

Which obliques demonstrate the left zygapophyseal joints?

Answer 8

RPO 70 degrees and LAO 70 degrees.

Question 9

What is the anode-heel effect?

Answer 9

The intensity of radiation emitted from the cathode end of the X-ray field is greater than that at the anode end.

Question 10

It is best to use which end of tube for the AP thoracic spine?

Answer 10

Anode end; thicker by diaphragm.

Question 11

It is best to use which end of tube for the LAteral thoracic spine?

Answer 11

Cathode end; thicker by shoulders

Question 12

When using the breathing technique for lateral thoracic what do we do?

Answer 12

Lower mA and longer time at least 2 seconds

Question 13

Where do we place marker during a lateral thoracic

Answer 13

Anteriorly.

Question 14

Why do we increase technical factors to 80 kVP at 50 mAs for lateral thoracic?

Answer 14

Due to thickness of part.