Angles And Positions Flashcards
How far inward do you rotate legs for hip and pelvis
15-20 degrees
Central ray for pelvis
Midway between the Asis and pubic symphysis
Central ray for ap hop
3 in below ASIS
Angle for ap axial outlet in men
20 to 35 degrees
Angle for ap axial outlet in women
30 to 45 degrees
Central ray for ap axial outlet
1 to 2 in distal to pubic symphysis
Internal oblique pelvis Judet method tcentral ray
2in inferior to the ASIS on the affected side (side up)
Angle for pa axial oblique pelvis
12 degree cephalic
Central ray for ap c spine
C4
Angle for ap c spine
15-20 cephalic
What do you need to include on ap c spine
C3-t2, open vertebral spaces
What do you need to see in c spine ap oblique
Intervertebral foramina
What is the CR for open mouth
C1-C2.
What is the angle of the ap oblique c spine
15-20 degree cephalic
What do you see in lateral c spine
Z joints
For t spine what view are the z joints closest to IR
PA OBLIQUES
For t spine what view are z joints farthest from the IR
AP obliques
For c spine what view are the intervertebral foramina further from IR
Ap axial oblique
For c spine what view are intervertebral foramina closest to the IR
Pa axial oblique
What is the CR for lumbar AP
At level of iliac crest L4
What is the CR FOR ap axial si joints
1.5 in superior to pubic symphysis
What is the angle for ap axial si joints
30-35 degrees cephalic
What is the central ray for l spine oblique
2in medial to ASIS AND 1.5in above Iliac crest
How do you know you’re over-rotated for l spine oblique
If Pedicle is anterior to vertebral body
What’s the angle for ap axial sacrum if patient is supine
15 degree cephalic
What’s the angle for ap axial sacrum if patient is prone
15 caudal
What’s the angle for ap supine coccyx
10 degree caudal
What is the purpose of a single contrast stomach and duodenum
Purpose is to determine the size shape and position of stomach. To examine the changing contour of stomach during peristalsis and observe the filing and emptying of duodenum bulb.
What should you do to show a hiatal hernia
Lower head of the table 25 to 30 degrees
What is an advantage of double contrast study
You can visualize small lesions
Where is the midline of the IR for a pa projection of stomach and duodenum
Coincides with sagital plane that’s halfway between the vertebral column and left lateral border of abdomen
What is the central ray for pa projection of stomach
1 to 2in above lower rib margin at the level of L1-L2
What should you see in the pa projection of stomach
Entire stomach and duodenal loop
In what type of patients can you see the pyloric canal and duodenal bulb especially in the pa projection
Hyposthenic
What’s the angle for pa axial stomach
35 to 45 cephalic
What’s the obliquity for pa oblique stomach
40-70 degrees
What is the preferred position for views of stomach
RAO
What is the CR for PA oblique stomach
1 to 2in above lower rib margin at the level of L1-L2
Where is the midline of the grid for pa oblique stomach
Sagital plane midway between the vertebrae and the lateral border of the elevated side
What is the RAO stomach used for
Studies of the pyloric canal and duodenal bulb because peristalsis is more active
What’s in profile in the pa oblique stomach
Duodenal bulb and loop. Gives best image of pyloric canal and duodenal bulb in sthenic patients
What is the CR for the ap oblique stomach
Midway between the level of xiphoid process and lower margin of the ribs
What is the obliquity for the patient for ap oblique stomach
30-60 degrees
What gives you the best view of the fundic portion of the stomach
Ap oblque lpo
If you want to see the left retrogastric place what do you do
Upright left lateral
For the external oblique pelvis which side is up? Which is down?
Affected side down positioned in prone
What is the central ray for pa oblique pelvis
Pubic symphysis
How long is the small intestine
20-22in
How long is the duodenum
8-10in long
How long are the intervals for images for a small intestine study
30 minutes 1hr if needed
How long is the large intestine
5ft long
What temperature should the suspension be for large intestine insertion
Below body temp 85-90
What do you see in AP/PA large intestine
Flexure and the rectum
What position allows you to see rectosigmoid
Pa axial large intestine
What’s the angle for pa axial large intestine
30 to 40 degree caudal
Where can you see left colic flexure
LAO and RPO
Where can you see right colic flexure?
RAO
How much do you oblique for pa oblique large intestine
35-45 obliquity
What does the right lateral large intestine show you
Medial side of ascending and lateral side of descending
What does left lateral show you on large intestine
Left lateral side of ascending colon and medial side of descending colon
What position best shows the distal sigmoid colon and the rectum
Lateral large intestine
What does the lateral large intestine show
The distal portion of the sigmoid colon and the rectum
What is the central ray for lateral large intestine
ASIS
What is the central ray for ap large intestine
At level of illiac crest
What is the central ray for ap apxial large intestine
2in below the Asis
What is the angle for ap axial large intestine
30-40 cephalic
What does the axial large intestine best show
Rectosigmoid portion of colon
What is the central ray for ap oblique large intestine
1 to 2in lateral to the midline of the body at level of Asis
What is the central ray for delayed small intestine
Level of illic crest
What’s the central ray for esophagus ap/pa
T5-T6
How much do you oblique the patient for esophagus
35-40 degrees both views
What’s the central ray for ap axial sacrum and coccyx
2in superior to pubic symphysis
What angle do you need for sacrum ap axial
15 degree cephalic
What angle do you need for ap axial coccyx
10 degree caudal
Capacity for enema bags
3000mL
Enema tip insertion angle
35 to 40 degree angle in sims position