THE ORDER OF PROCEDURE
BARIUM ENEMA, LATERAL RECTUM
Structure best shown. Rectum and sigmoid colon anterior to the sacrum.
Remove artifacts. All clothing removed, including undergarments. Remove jewelry
in area of interest.
Technical Factors: 10x12 in.
LM: Corresponding side.
(24x30 cm), (LW), Bucky. For larger
patients, use several CW 14 x 17 in.
Recumbent in true lateral position, work quickly.
Center mid-axillary plane to centerline of table.
Knees and hips partially flexed.
Center patient and cassette to CR.
NOTE: Ventral decub lat. rectum (Alternate projection with double contrast exam, this
allows the air to fill the rectum), cross table.
5. CR: Vertical Perpendicular to 1" distal to level of ASIS, centered to mid-axillary
plane (midway between ASIS and posterior sacrum).
7. SID: 40-44" to the Bucky.
8. Respiration: Expose at full expiration.
Figure 2-18. Lateral rectum, barium enema.