Abdomen Flashcards
MRCP
Magnetic
Resonance
Cholangiopancreatography
gado needed for MRCP (common bile duct stones)
no
gado needed for MRCP (cystic lesions/ dilated ducts)
yes
NPO
Nothing
By
Mouth
for bladder exam, does it need to be empty, half-full, or full?
full
occult fractures?
‘hidden’
how many TE does in and out phase sequence produce?
2 TE values
cirrhosis
liver turns into rocks, in sections/ not evenly
NPO for all abdomen exams?
4-6 hours
(pancreas, liver, MRCP, pelvis, fetal imaging)
FSE frequently used are:
80 ms
160 ms
what are the 3 main artifact problems?
- respiration
- flow
- peristalsis
what is the only contrast used for liver?
eovist
what is MRCP?
a non-invasive medical imaging technique that uses radio waves, magnets, and a computer to create detailed images of biliary and pancreatic systems
what is the phase after a contrast injection?
arterial phase
what is the phase when blood gone down to limbs, returning to veins?
portal vein
VIBE (Fat Sat)
Volumetric
Interpolated
Breath-hold
Examination
LAVA
Liver
Acceleration
Volume
Acquisition
which weighting causes ‘chemical shift’?
T1 weighting
what happens in between in-phase and out-of-phase?
loss signal intensity
indicate fat
which sequence ensures enough time for contrast to go through the organs?
multiphase
what is the placement for bellows?
depends if patient is chest or belly breather
what is MRCP best for?
- ductal stones
- blocked/ narrowed bile ducts
- pancreatic cysts/ pseudocysts
- pancreatic cancer
- inflammation in the gallbladder/pancreas
- bile duct cancer
MRCP anatomy
what does the adrenal glands attached to?
the kidneys
position of adrenal gland comparing to pancreas
both located in the retroperitoneal space
pancreas’ head antero-inferiorly to right adrenal gland
pancreas’ tail anterior to left adrenal gland
what are the organs located in the back of abdomen, below ribcage, and on either side of spine?
kidneys/ renals
which landmark should you localize for abdomen exam?
3 fingers below xyphoid
(mid-liver)
which image weighting is useful for focal hepatic lesions?
T2 weighted images
which image weighting is useful for fat-containing lesions like lipomas, adenomas, and hyperplasia?
T1 weighted images
enterography
examine the small intestine and other parts of gastrointestinal tract
NPO for pregnant patient (appendicitis)
4 hours
empty bladder
