Mesenteric Small Bowel

Question 1

Four major symptoms of small bowel disease

Answer 1

Colic
Diarrhea
Malabsoprtion
Bleeding

Question 2

Defined as recurrent and spasmodic abdominal pain with periods of relief every 2-3 minutes

Answer 2

Colic

Question 3

Limited to the evaluation of the lumen of the small bowel

Answer 3

Fluoroscopy

Question 4

Provides added information about the wall of the small bowel, its mesentery and adjacent structures and tissues

Answer 4

Cross sectional CT and MR

Question 5

Traditional method for radiographic examination of the small bowel tacked onto a standard upper GI series

Answer 5

Small bowel follow-through

Question 6

For visualization of distal ileum, improved with a double-contrast technique by insuflating the colon with air

Answer 6

Small bowel follow through with peroral pneumocolon

Question 7

Aka small bowel enema, more sensitive fluoroscopic method for detailed small bowel examination.

Answer 7

Enteroclysis

Question 8

Provides more uniform distention of the bowel, even distributiom of barium, superior anatomic detail and shorter overall examination time

Answer 8

Enteroclysis

Question 9

Size of enteroclysis catherer

Answer 9

Fr 12 to 14

Question 10

Enteroclysis catheter tip should be at what level

Answer 10

Distal duodenum or proximal jejunum

Question 11

Volume of barium used for single contrast enterocylsis

Answer 11

600cc

Question 12

Volume of barium and preparation for double contrast enteroclysis

Answer 12

200 cc of barium followed by 1000cc of methylcellulose

Question 13

Size of catheter used in CT enteroclysis

Answer 13

Fr 8-13

Question 14

Contrast agent that includes 4-15 % water-soluble iodinated contrast agents and dilute barium solution

Answer 14

High-attenuation contrast

Question 15

Contrast agent that include water and methylcellulose

Answer 15

Low attenuation enteric agents

Question 16

Amount of enteric contrast infused in CT enteroclysis

Answer 16

1000cc

Question 17

What contrast agent allows for use of IV contrast to assess bowel wall and lesion enhancement

Answer 17

Low attenuation enteric agents

Question 18

Imaging reserved for patients with low grade small bowel obstruction or who are unable to ingest large volumes of enteric agents orally

Answer 18

MR enterography with enteroclysis

Question 19

Common contrast agent used in MR enterography that contain water, methylcellulose, low-density barium, and polyethylene glycol

Answer 19

Biphasic agents

Question 20

Approximate length of small intestine

Answer 20

7 meters

Question 21

Proximal 2/5 of SI

Answer 21

jejunum

Question 22

Distal 3/5 of SI

Answer 22

ileum

Question 23

Root of small bowel

Answer 23

From ligament of Treitz, just left of L2

Question 24

Inferior border of SI

Answer 24

Cecum, near right sacroiliac joint

Question 25

Concave border of small bowel loops

Answer 25

Mesenteric border where mesentery attaches

Question 26

Convex border of SI

Answer 26

antimesenteric border

Question 27

Has a feathery mucosal pattern, more prominent valvulae conniventes, wider lumen and thicker wall

Answer 27

Jejunum

Question 28

Less feathered mucosal pattern, thinner, less frequent folds, narrower lumen, and thinner wall

Answer 28

Ileum

Question 29

What greatly expands the absorptive area of SI

Answer 29

Combination of valvulae conniventes and villi

Question 30

Normal diameter of jejunum

Answer 30

<3cm

Question 31

Normal jejunal fold thickness

Answer 31

2-3 mm

Question 32

Normal diameter of ileum

Answer 32

<2cm

Question 33

Normal ileum folds measure

Answer 33

1-2 mm thick

Question 34

Enteroclysis distends normal jejunum up to _____ and normal ileum up to ____

Answer 34

4cm

3cm

Question 35

Normal lymph nodes seen in mesentery are less than

Answer 35

4 mm

Question 36

Number of fold of jejunum per inch

Answer 36

4-7

Question 37

Number of fold of ileum per inch

Answer 37

2-4