Ch. 17 Large Intestine

Question 1

PA Large Intestine

Answer 1

IR: 14 x 17’’

Technique: 100 kVp at all cells

SID: 40”

CR: Center on MSP. Center IR at level of iliac crests

Respiration: Suspended

Position: Prone, arms above head

Question 2

PA Axial Large Intestine

Answer 2

IR: 14 x 17’’

Technique: 100 kVp at all cells

SID: 40”

CR: 30-40 degrees caudal, centered on MSP. CR exits at level of ASIA (enters at approximately the iliac crests).

Respiration: Suspended

Position: Prone, arms above head

Question 3

PA Oblique Large Intestine (RAO/LAO)

Answer 3

IR: 14 x 17’’

Technique: 100 kVp at all cells

SID: 40”

CR: 1-2” lateral to midline of the body on the elevated side. CR at level of iliac crest.

Respiration: Suspended

Position: Prone, rotate the patient 35-45 degrees

Question 4

Lateral Large Intestine (R/L position) Lower

Answer 4

IR: 10 x 12’’

Technique: 120 kVp at all cells

SID: 40”

CR: Centered to MCP, at the level of ASIS

Respiration: Suspended

Position: Lateral recumbent, arms extended, flex knees for stability.

Question 5

AP Large Intestine

Answer 5

IR: 14 x 17’’

Technique: 100 kVp at all cells

SID: 40”

CR: Center on MSP, center IR at the level of the iliac crests

Respiration: Suspended

Position: Supine, arms at side out of the light field

Question 6

AP Axial Large intestine

Answer 6

IR: 14 x 17’’

Technique: 100 kVp at all cells

SID: 40”

CR: 30-40 degrees cephalad centered on MSP. Center IR at the level of iliac crests

Respiration: Suspended

Position: Supine, arms at side out of the light field.

Question 7

AP Oblique Large Intestine (LPO/RPO)

Answer 7

IR: 14 x 17’’

Technique: 100 kVp at all cells

SID: 40”

CR: 1-2” lateral to midline of the body on elevated side. CR at the level of iliac crest

Respiration: Suspended

Position: Supine, rotate the patient 35-45 degrees