FGS Flashcards
1
Q
TC99m pros
A
(+) SN specificity (SN = sentinel node: the first tumor
draining lymph nodes )
(+) Long retention:
>30h after tracer
administration
(+) Preoperative imaging
2
Q
What is needed to detect fluorescence in the Operating Room?
A
- Strong excitation source
- Preferable dye properties
- Good optical filters
- Sensitive detector
- Software algorithms
3
Q
Penetration depth: Radioactive vs. Fluorescence signals
A
RGS: res > 10cm
FGS: res < 1cm :(
4
Q
RA and flourescent nanoparticle that can be used with both RGS and FGS
A
ICG-99mTc-nanocolloid
5
Q
FGS cons
A
tissue penetration: depth is small, tissue need to be opened
6
Q
fgs applications
A
nerve imaging
multispectral fluorescence imaging (Visualize two different features in a single patient)
7
Q
probe
A
Open surgery gamma probe
Laparoscopic gamma probe
DROP-IN gamma probe
