- Slides: 19
Radiographic Positioning for Barium Enema Presented by Aries Paul Zeta, RRT Property of Davao Doctors College
10 – Miller’s Routine Sequence of Radiographs 1)AP – to include flexures 2)Left lateral rectum 3)AP – 15 – 25 degs. Cephalic(CR) to include rectum. 4)15 – 25 degs. RPO – to include Left colic 5)Right lateral – to include rectum
Cont… 6) Prone PA – to include flexures 7) Prone PA with 15 – 25 degs caudal angulation (Angle Prone)– to include rectum. 8) 15 – 25 degs LPO- to include the right colic flexure. 9) Supine – AP tightly collimated ileocecal region proj. taken in 2 – 3 degs obliquity. 10)Using horizontal central ray, upright proj. of both flexures and lateral rectum.
Usually used in the hospital Modification of Positions for Barium Enema
Scout Film • First exposure of the procedure should be a plain radiograph of the abdomen area. • Advice the patient to lie down on the radiographic table, the MSP of the patient should be inline with the MSP of the Table. • Center the CR at the level of the L 4 or the level of the iliac crest. • Respiration is suspended during expiration. L 4
Sim’s Position Sims position – relaxes the abdominal muscles and decreases pressure within the abdomen. Instruct the patient to lie on their side away from the tech. let the lower arm of the patient to be put at the back of his body. The up side knee should be flex for support and lower side extremity should not be flex or bent. Wearing gloves, coat enema tip with water-soluble lubricant. (KY jelly or any sterile lubricant). On expiration, direct enema tip toward the umbilicus proximally 1 to 1. 5 inches. After initial insertion, advance up superiorly and slightly anteriorly. Do not force enema tip. Tape tubing in place to prevent slippage. Do not inflate unless directed by radiologist. Ensure IV pole/enema bag is no more than 24 inches (60 cm) above the table. Ensure tubing stopcock is in the closed position and no barium flows into the pt.
Left/Right position of the recto sigmoid area Film: 10 x 12 cm lengthwise • True lateral position of the Recto sigmoid • CR should be 5 -7 cm above the level of the pubic symphysis in the midaxillary plane
AP (recto sigmoid area) Film: 10 x 12 cm crosswise • AP view of the Rectum & Sigmoid should be included • CR 5 -7 cm above the level of the pubic symphysis 5 -7 cm above pubic symphysis
AP (Single Contrast) Film: 14 x 17 cm • An Entire colon filled with contrast media should be demonstrated including the splenic flexure and the rectum. • CR is at the level of the L 4 or at the level of the iliac crest L 4
AP Double Contrast Film: 14 x 17 cm lengthwise • Patient lies in a supine position MSP is in line with the MSP of the table • An Entire colon filled with positive and negative contrast media should be demonstrated including the splenic flexure and the rectum. • CR is at the level of the L 4 or at the level of the iliac crest L 4
RPO Position(optional) Film: 14 x 17 cm lengthwise • Instruct the patient to lie on his right side making an angulation of 35 -45 deg • It is taken primarily to demonstrate the Left Colic(splenic) flexure and ascending colon should be visualized. • CR is at the level of the L 4 or at the level of the iliac crest
LAO Position (optional) Film: 14 x 17 cm lengthwise • It is taken primarily to demonstrate the right colic (hepatic) flexure and sigmoid portion of the colon • CR is at the level of the L 4 or at the level of the iliac crest
Right Lateral Decubitus Film: 14 x 17 cm lengthwise • Best demonstrate the “up” medial side of the ascending colon and the lateral side of the descending colon, when the colon is inflated with air due to gravity. • CR at the level of the L 4 or at the level of the iliac crest
Left Lateral Decubitus Film: 14 x 17 cm lengthwise • Best demonstrate the “up”, medial side of the descending colon and the lateral side of the ascending colon, when the colon is inflated with air. • CR is at the level of the L 4 or at the level of the iliac crest
Ventral Decubitus Film: 10 x 12 cm lengthwise • A cross table view of the recto sigmoid area • Demonstrate the air-fluid level of the recto sigmoid area • CR is at 5 -7 cm above the level of the pubic symphysis in the midaxillary plane
PA Axial position (Angle Prone) Film: 10 x 12 cm or 11 x 14 cm crosswise • Rectosigmoid area must be less superimposition than in the PA projection because of the angulation of the CR • Center it the midline of the body with an angulation of 30 -400 caudad at approximate level of the anterior superior iliac spines.
Supine position Film: 14 x 17 cm lengthwise • A postevacuation radiograph view of the colon is taken after the procedure is done • If inadequate satisfactory delineation of the mucus the patient may be given hot beverage (tea/coffee) to stimulate evacuation
After care Patient is advised to drink plenty of water, or laxative is taken to remove excess barium sulfate.
Acknowledgement • Radiographic positioning demonstrated by Davao Doctors College Interns