<s>
Enteroscopy	B-Algorithm
is	O
the	O
procedure	O
of	O
using	O
an	O
endoscope	O
for	O
the	O
direct	O
visualization	O
of	O
the	O
small	O
bowel	O
.	O
</s>
<s>
Various	O
types	O
of	O
enteroscopy	B-Algorithm
exist	O
,	O
as	O
follows	O
:	O
</s>
<s>
Esophagogastroduodenoscopy	B-Application
,	O
also	O
called	O
upper	B-Application
endoscopy	I-Application
,	O
gets	O
as	O
far	O
as	O
the	O
first	O
segment	O
of	O
the	O
small	O
bowel	O
,	O
the	O
duodenum	O
,	O
but	O
the	O
next	O
two	O
,	O
the	O
jejunum	O
and	O
ileum	O
,	O
require	O
other	O
methods	O
.	O
</s>
<s>
With	O
the	O
advent	O
of	O
the	O
newer	O
forms	O
of	O
enteroscopy	B-Algorithm
,	O
such	O
as	O
the	O
double-balloon	B-Algorithm
type	O
,	O
visualizing	O
the	O
entire	O
tract	O
is	O
finally	O
a	O
practical	O
reality	O
in	O
at	O
least	O
some	O
cases	O
,	O
although	O
it	O
is	O
still	O
technically	O
demanding	O
.	O
</s>
<s>
Traditional	O
gastroscopes	B-Application
can	O
generally	O
visualize	O
the	O
proximal	O
and	O
distal	O
duodenum	O
in	O
the	O
hands	O
of	O
experienced	O
endoscopists	O
but	O
are	O
limited	O
due	O
to	O
the	O
length	O
of	O
the	O
instrument	O
.	O
</s>
<s>
Pediatric	O
colonoscopes	O
or	O
sometimes	O
dedicated	O
enteroscopes	O
which	O
are	O
much	O
longer	O
than	O
standard	O
gastroscopes	B-Application
can	O
visualize	O
the	O
proximal	O
jejunum	O
.	O
</s>
<s>
This	O
technique	O
is	O
referred	O
to	O
as	O
push	O
enteroscopy	B-Algorithm
.	O
</s>
<s>
Due	O
to	O
the	O
length	O
of	O
the	O
small	O
bowel	O
,	O
averaging	O
4	O
–	O
6	O
meters	O
in	O
the	O
adult	O
,	O
push	O
enteroscopy	B-Algorithm
is	O
still	O
not	O
effective	O
to	O
adequately	O
visualize	O
large	O
portions	O
of	O
the	O
small	O
intestine	O
.	O
</s>
<s>
Newer	O
techniques	O
,	O
including	O
single	O
and	O
double-balloon	B-Algorithm
endoscopy	O
have	O
been	O
developed	O
to	O
overcome	O
some	O
of	O
these	O
issues	O
,	O
but	O
are	O
limited	O
by	O
the	O
length	O
of	O
the	O
procedure	O
,	O
and	O
the	O
need	O
for	O
deep	O
sedation	O
or	O
general	O
anesthesia	O
.	O
</s>
<s>
Spiral	O
enteroscopy	B-Algorithm
is	O
a	O
novel	O
technique	O
that	O
utilizes	O
an	O
overtube	O
with	O
raised	O
spirals	O
affixed	O
on	O
the	O
enteroscope	O
that	O
is	O
rotated	O
to	O
advance	O
the	O
enteroscope	O
deep	O
into	O
the	O
small	O
bowel	O
.	O
</s>
<s>
Each	O
of	O
these	O
3	O
enteroscopy	B-Algorithm
platforms	O
offers	O
similar	O
accuracy	O
and	O
effectiveness	O
but	O
do	O
not	O
have	O
widespread	O
availability	O
.	O
</s>
