Imaging Procedures SPLEEN, PANCREAS, ADRENALS

Question 1

CT density of unenhanced spleen

Answer 1

between 40 to 60 HU

Question 2

What enhancement phase does the spleen demonstrate a heterogenous pattern

Answer 2

arterial

Question 3

the preferred timing and phase to image the spleen with a more homogenous pattern

Answer 3

portal venous

60 - 70 sec

Question 4

indications for spleen CT

Answer 4

trauma

focal lesions (benign or malignant)

enlarged spleen

Question 5

A common incidental finding on an abdomen CT

Answer 5

Splenules: accessory spleens

small bits of splenic tissue

Question 6

indications for pancreas CT

Answer 6

evaluate pancreatitis

identify neoplasms in the pancreas

Question 7

Evaluation of pancreatitis . what we are looking for on a CT

Answer 7

inflammation on or around the pancreas.

dead pancreatic tissue

Question 8

examples of pancreatic neoplasms

Answer 8

cysts/ pseudocysts

cystic fibroids

endocrine masses

adenocarcinoma

Question 9

pancreatic tumors appear less or more dense than surrounding tissue

Answer 9

less

Question 10

identify the “pancreatic phase of enhancement” and the associate time interval

Answer 10

delayed arterial phase

35-45 sec

Question 11

the primary goal of multi phase ct of a mass on pancreas

Answer 11

determine respectability

Question 12

3 factors that influence potential surgical removal of a pancreatic tumor

Answer 12

spread of tumor

vasculature involvement

metastases

Question 13

candidates for surgical intervention for pancreatic tumor undergo what procedure?

what does that involve?

Answer 13

whipple

resects duodenum and pancreas

Question 14

CT density of adrenal glands?

this density is similar to what other structure in the body?

Answer 14

25- 40 HU

muscle

Question 15

Where are adrenal glands located? what surrounds them ?

Answer 15

on top of kidneys

fat

Question 16

Adrenals typically imaged with this slice thickness

if thinner sections are needed you will use this slice thickness

Answer 16

3-5 mm

0.5- 2 mm

Question 17

in order to fully characterize adrenals and if its not contraindicated by anything when would you ideally want to give contrast

Answer 17

pre and post imaging

Question 18

what phase do you normally image the adrenals

Answer 18

portal venous

Question 19

to characterize a tumor on the adrenals how long should you wait for delay imaging

Answer 19

10-15 min

Question 20

indications for adrenal imaging

Answer 20

endocrine abnormality

staging cancer

characterizing adrenal lesion

Question 21

The adrenal gland is a common metastatic site for what type of cancer?

Answer 21

lung carcinoma

Question 22

What does the term adrenal incidentaloma refer to ?

Answer 22

when you are imaging for another study and find a lesions on the the adrenal glands that you can characterize