neuroimaging Flashcards
1
Q
radiation dose in a routine head CT
A
2-5 mSV(sievert)
2
Q
threshold of eGFR below which iodinated contrast should not be given
A
45
3
Q
definition of CIN
A
rise in serum creatinine of 1mg/dl within 48 hours of contrast administration
4
Q
Risk factors for CIN
A
age>80 yrs DM dehydration paraproteinemias preexisting renal disease solitary kidney nephrotoxic drugs
5
Q
risk factors for contrast anaphylaxis
A
previous contrast allergy
food allergy
asthma
6
Q
DWI are sensitive for infarctions less than __________ days old
A
7
7
Q
diffusion restriction is seen in
A
acute infarct
abscess
encephalitis
