UGI Flashcards
Film size for UGI
14 x 17 LW Bucky
Position for RAO UGI
Recumbent prone
Head on pillow
Rotate patient 40-70 (usually 45) degrees
Right anterior against table.
Center patient midway between spine and lateral border of body.
CR for RAO UGI
Perpendicular to duodenal bulb, at level of L2.
CR midway between spine and lateral border of body.
Structures RAO UGI
Air in fundus Barium in body and pylorus of stomach. See: pylorus of stomach C-loop of duodenum Profile image of duodenal bulb
Right Lateral of UGI position
Recumbent on right side. Shoulders and hips in true lateral. Arms abducted up towards head. Knees flexed. Center body midway btwn the midcoronal plane and the anterior surface of abdomen are aligned with the midline of grid.
CR for Right Lateral UGI
Perpendicular to level of L1.
Anterior 1” to 1.5” anterior to mid- coronal plane.
Structures seen Right Lateral UGI
Retrogastric space Barium primarily in the mid and distal stomach and duodenum. Barium filled C-loop of duodenum. See tumors behind stomach area See lateral view of vertebrae.
AP position UGI
Patient supine
MSP to long axis of table.
No rotation.
Can do trendelenburg for reflux or hiatal hernia.
CR for AP UGI
Perpendicular to level of L1.
Midway between midline of body and left lateral margin of abdomen.
Structures for AP UGI
Barium filled fundus of stomach and duodenum.
Air In body of stomach.
Can see hiatal hernia in trendelenburg position.
UGI routine
RAO
Right Lateral
LPO
AP
Position for LPO UGI
Recumbent
From supine position, rotate 30-60 degrees with left posterior aspect against table.
Arms up near head
Center of IR midway between xiphoid process and lower margin of the ribs.
CR for LPO
Perpendicular to level of L1.
Midway between midline of body and left lateral margin of body.
Structure seen LPO UGI
Barium filled fundus
Air filled body
Pylorus and duodenal bulb seen with air-contrast in profile.
C-loop
Reasons to do UGI
Peptic ulcers Hiatal hernia Diverticula Gastritis Tumor Bezoar Gastroenteritis
Steps for contrast for UGI
EZ Gas
Sip of water
Thick barium
Patient turns 360 degrees when recumbent on table; to coat lining of intestines
Why is it important to select the correct study on the computer screen?
Because kVp is specific to type of contrast
Barium 100 kVp
Air 90 kVp
Gastrographin 80-90 kVp
Does the patient need to drink barium during overhead Xrays for UGI
No
What structures do you see in PA UGI
Air in fundus Barium in body See: stomach A little bit of duodenum Duodenal bulb
Reasons why you would do preliminary xrays for UGI
KUB before to see if there are kidney or gallstones.
If patient had a CAT scan prior, see if there is still contrast in body.
Ask radiologist if they want a KUB prior to exam; after getting pt Hx.
Patient needs to be NPO for how long before UGI?
After midnight for 8 to 9 hours before exam
When small intestine study is going to be done, NPO for?
After their evening meal
Why shouldn’t patient smoke or chew gum after midnight
They stimulate gastric secretion and salivation. Prevents excessive fluid from accumulating in the stomach and diluting barium.
What is a biphasic examination
A combination of the single contrast and double contrast methods done during same procedure.
The advantage of double contrast study.
Small lesions are less easily obscured, and the mucosal lining of the stomach can be more clearly visualized.
Why is the RAO position best used for in a UGI?
Studies of pyloric canal and duodenal bulb;
Because gastric peristalsis is usually more active in this position.
