<s>
BI-RADS	B-Algorithm
is	O
an	O
acronym	O
for	O
Breast	B-Algorithm
Imaging-Reporting	I-Algorithm
and	I-Algorithm
Data	I-Algorithm
System	I-Algorithm
,	O
a	O
quality	O
assurance	O
tool	O
originally	O
designed	O
for	O
use	O
with	O
mammography	O
.	O
</s>
<s>
The	O
BI-RADS	B-Algorithm
is	O
published	O
by	O
ACR	O
in	O
the	O
form	O
of	O
the	O
BI-RADS	B-Algorithm
Atlas	O
.	O
</s>
<s>
While	O
BI-RADS	B-Algorithm
is	O
a	O
quality	O
control	O
system	O
,	O
in	O
day-to-day	O
usage	O
the	O
term	O
BI-RADS	B-Algorithm
refers	O
to	O
the	O
mammography	O
assessment	O
categories	O
.	O
</s>
<s>
The	O
assessment	O
categories	O
were	O
developed	O
for	O
mammography	O
and	O
later	O
adapted	O
for	O
use	O
with	O
MRI	O
and	O
ultrasound	B-Application
findings	O
.	O
</s>
<s>
Category	O
6	O
was	O
added	O
in	O
the	O
4th	O
edition	O
of	O
the	O
BI-RADS	B-Algorithm
.	O
</s>
<s>
BI-RADS	B-Algorithm
assessment	O
categories	O
are	O
:	O
</s>
<s>
An	O
incomplete	O
(	O
BI-RADS	B-Algorithm
0	O
)	O
classification	O
warrants	O
either	O
an	O
effort	O
to	O
ascertain	O
prior	O
imaging	O
for	O
comparison	O
or	O
to	O
call	O
the	O
patient	O
back	O
for	O
additional	O
views	O
and/or	O
higher	O
quality	O
films	O
.	O
</s>
<s>
A	O
BI-RADS	B-Algorithm
classification	O
of	O
4	O
or	O
5	O
warrants	O
biopsy	O
to	O
further	O
evaluate	O
the	O
offending	O
lesion	O
.	O
</s>
<s>
Some	O
experts	O
believe	O
that	O
the	O
single	O
BI-RADS	B-Algorithm
4	O
classification	O
does	O
not	O
adequately	O
communicate	O
the	O
risk	O
of	O
cancer	O
to	O
doctors	O
and	O
recommend	O
a	O
subclassification	O
scheme	O
:	O
</s>
<s>
As	O
of	O
the	O
BI-RADS	B-Algorithm
5th	O
edition	O
:	O
</s>
<s>
Automatic	O
parsers	O
have	O
been	O
developed	O
to	O
automatically	O
extract	O
BI-RADS	B-Algorithm
features	O
,	O
categories	O
and	O
breast	O
composition	O
from	O
textual	O
mammography	O
reports	O
.	O
</s>
<s>
There	O
is	O
also	O
an	O
automatic	O
parser	O
available	O
for	O
BI-RADS	B-Algorithm
final	O
category	O
inference	O
by	O
parsing	O
only	O
the	O
semi-formatted	O
finding	O
section	O
of	O
the	O
textual	O
mammography	O
report	O
.	O
</s>
