f-18 sodium fluoride bone scanning Flashcards
1
Q
what is the fluorife ion exchanged for
A
a hydroxl group in the bone crystal
2
Q
what does the exchange of a hydroxyl group for fluoride ion create
A
fluoroapatite which then deposits on bone surface
3
Q
upatke is how many times greater than Tc polyphosphonates
A
twice as high
4
Q
does f-18 soduym fluoride bone imaging agents have faster blood clearence than tc
A
yes
5
Q
dose
A
5-10 mCi and 10 mCi for obese pt
6
Q
prep
A
pt should hydrate with 16 oz water 1 hr prior to inj and hyrdate after
7
Q
what time to scan axial
A
30-45 min after inj for axial skeleton
8
Q
what time to scan for appendicular
A
90-120 min
