<s>
Angioscopy	B-Algorithm
is	O
a	O
medical	O
technique	O
for	O
visualizing	O
the	O
interior	O
of	O
blood	O
vessels	O
.	O
</s>
<s>
Angioscopy	B-Algorithm
is	O
also	O
used	O
as	O
an	O
adjunctive	O
procedure	O
during	O
vascular	O
bypass	O
to	O
visualize	O
valves	O
within	O
venous	O
conduits	O
.	O
</s>
<s>
The	O
instrument	O
used	O
to	O
perform	O
angioscopy	B-Algorithm
is	O
called	O
as	O
angioscope	O
.	O
</s>
<s>
Scanning	B-Device
Fiber	I-Device
Endoscope	I-Device
(	O
SFE	O
)	O
is	O
an	O
emerging	O
technology	O
which	O
provides	O
much	O
higher	O
resolution	O
imaging	O
,	O
whilst	O
maintaining	O
a	O
small	O
form	O
factor	O
and	O
flexibility	O
.	O
</s>
<s>
Coronary	O
artery	O
angioscopy	B-Algorithm
,	O
which	O
first	O
was	O
used	O
to	O
reveal	O
the	O
presence	O
of	O
a	O
blood	O
clot	O
in	O
the	O
coronary	O
arteries	O
of	O
patients	O
with	O
unstable	O
angina	O
and	O
myocardial	O
infarction	O
,	O
is	O
now	O
widely	O
used	O
in	O
catherization	O
laboratories	O
to	O
visualize	O
stents	O
.	O
</s>
