Imaging Procedures SPLEEN, PANCREAS, ADRENALS Flashcards
CT density of unenhanced spleen
between 40 to 60 HU
What enhancement phase does the spleen demonstrate a heterogenous pattern
arterial
the preferred timing and phase to image the spleen with a more homogenous pattern
portal venous
60 - 70 sec
indications for spleen CT
trauma
focal lesions (benign or malignant)
enlarged spleen
A common incidental finding on an abdomen CT
Splenules: accessory spleens
small bits of splenic tissue
indications for pancreas CT
evaluate pancreatitis
identify neoplasms in the pancreas
Evaluation of pancreatitis . what we are looking for on a CT
inflammation on or around the pancreas.
dead pancreatic tissue
examples of pancreatic neoplasms
cysts/ pseudocysts
cystic fibroids
endocrine masses
adenocarcinoma
pancreatic tumors appear less or more dense than surrounding tissue
less
identify the “pancreatic phase of enhancement” and the associate time interval
delayed arterial phase
35-45 sec
the primary goal of multi phase ct of a mass on pancreas
determine respectability
3 factors that influence potential surgical removal of a pancreatic tumor
spread of tumor
vasculature involvement
metastases
candidates for surgical intervention for pancreatic tumor undergo what procedure?
what does that involve?
whipple
resects duodenum and pancreas
CT density of adrenal glands?
this density is similar to what other structure in the body?
25- 40 HU
muscle
Where are adrenal glands located? what surrounds them ?
on top of kidneys
fat
Adrenals typically imaged with this slice thickness
if thinner sections are needed you will use this slice thickness
3-5 mm
0.5- 2 mm
in order to fully characterize adrenals and if its not contraindicated by anything when would you ideally want to give contrast
pre and post imaging
what phase do you normally image the adrenals
portal venous
to characterize a tumor on the adrenals how long should you wait for delay imaging
10-15 min
indications for adrenal imaging
endocrine abnormality
staging cancer
characterizing adrenal lesion
The adrenal gland is a common metastatic site for what type of cancer?
lung carcinoma
What does the term adrenal incidentaloma refer to ?
when you are imaging for another study and find a lesions on the the adrenal glands that you can characterize
