Accessory Lumbosacral Views

Question 1

Frontal Angulated Spot View: Patient Measurement

Answer 1

Anterior to Posterior, through the thickest portion of the abdomen

Question 2

Frontal Angulated Lumbosacral Spot: Source to Image Distance

Answer 2

34”

Question 3

Frontal Angulated Lumbosacral Spot: Tube Tilt

Answer 3

30 degrees cephalic (If P-A then caudal)

Question 4

Frontal Angulated Lumbosacral Spot: Image Receptor Size

Answer 4

10 x 12” in portrait

Question 5

Frontal Angulated Lumbosacral Spot: Central Ray

Answer 5

Midline, with the horizontal crosshair halfway between the umbilicus or ASIS and the symphysis pubis

Question 6

Frontal Angulated Lumbosacral Spot: Collimation

Answer 6

10” horizontally and 12” vertically

Question 7

Frontal Angulated Lumbosacral Spot: Marker Placement

Answer 7

Directly on the image receptor, in one corner

Question 8

Frontal Angulated Lumbosacral Spot: Breathing Instructions

Answer 8

Suspended exhalation and motion

Question 9

Lateral Lumbosacral Spot: Patient Measurement

Answer 9

3” below the iliac crests laterally

Question 10

Lateral Lumbosacral Spot: Source to Image Distance

Answer 10

40”

Question 11

Lateral Lumbosacral Spot: Tube Tilt

Answer 11

None

Question 12

Lateral Lumbosacral Spot: Image Receptor Size

Answer 12

8 x 10” film or 10 x 12” digital in portrait

Question 13

Lateral Lumbosacral Spot: Patient Positioning

Answer 13

Patient stnads with lateral iliac crest touching the grid. Patients arms are flexed out of the collimation field and crossed

Question 14

Lateral Lumbosacral Spot: Central Ray Position

Answer 14

2” posterior to the ASISs

Question 15

Lateral Lumbosacral Spot: Collimation

Answer 15

8” horizontally and 10” vertically

Question 16

Lateral Lumbosacral Spot: Marker Placement

Answer 16

Directly on the image receptor, in one of the upper corners

Question 17

Lateral Lumbosacral Spot: Breathing Instructions

Answer 17

Suspended Exhalation and motion (“Breathe all the way out, and hold completely still.”)

Question 18

Anterior/Posterior Lumbar Oblique: Patient Measurement

Answer 18

Anterior to Posterior, through the thickest portion of the abdomen

Question 19

Anterior/Posterior Lumbar Oblique: Source to Image Distance

Answer 19

40”

Question 20

Anterior/Posterior Lumbar Oblique: Source to Image Distance

Answer 20

40”

Question 21

Anterior/Posterior Lumbar Oblique: Tube Tilt

Answer 21

None

Question 22

Anterior/Posterior Lumbar Oblique: Tube Tilt

Answer 22

None

Question 23

Anterior/Posterior Lumbar Oblique: Image Receptor

Answer 23

10 x 12” in portrait orientation

Question 24

Anterior/Posterior Lumbar Oblique: Central Ray Position

Answer 24

1 inch above the iliac crest and one inch lateral to the spine on the side of the patient closest to the tube

Question 25

Anterior/Posterior Lumbar Oblique: Collimation

Answer 25

10” horizontally and 12” vertically

Question 26

Anterior/Posterior Lumbar Oblique: Marker Placement

Answer 26

Place the marker directly on one of the lower corners of the image receptor (RAO, LAO, RPO, LPO)
-If lets of right then usually above iliac crest

Question 27

AP Sacrum: Patient Measurement

Answer 27

A-P through the thickest portion of the abdomen

Question 28

AP Sacrum: Source to Image Distance

Answer 28

37”

Question 29

AP Sacrum: Tube Tilt

Answer 29

15 degrees cephalic

Question 30

AP Sacrum: Image Receptor Size

Answer 30

10 x 12” in portrait orientation

Question 31

AP Sacrum: Image Receptor Size

Answer 31

10 x 12” in portrait orientation

Question 32

AP Sacrum: Central Ray Position

Answer 32

Midline with horizontal crosshair at the umbilicus or ASIS and the pubic sympysis

Question 33

AP Sacrum: Collimation

Answer 33

10” horizontally and 12” vertically

Question 34

AP Sacrum: Marker Placement

Answer 34

Directly on the image receptor in one corner

Question 35

AP Sacrum: Breathing Instructions

Answer 35

Suspended exhalation and motion (“Breathe all the way out, and hold completely still”)