<s>
Transrectal	B-Algorithm
ultrasonography	I-Algorithm
,	O
or	O
TRUS	B-Algorithm
in	O
short	O
,	O
is	O
a	O
method	O
of	O
creating	O
an	O
image	O
of	O
organs	O
in	O
the	O
pelvis	O
,	O
most	O
commonly	O
used	O
to	O
perform	O
an	O
ultrasound-guided	O
needle	O
biopsy	O
evaluation	O
of	O
the	O
prostate	O
gland	O
in	O
men	O
with	O
elevated	O
prostate-specific	O
antigen	O
or	O
prostatic	O
nodules	O
on	O
digital	O
rectal	O
exam	O
.	O
</s>
<s>
TRUS--guided	O
biopsy	O
may	O
reveal	O
prostate	O
cancer	O
,	O
benign	O
prostatic	O
hypertrophy	O
,	O
or	O
prostatitis	O
.	O
</s>
<s>
TRUS	B-Algorithm
may	O
also	O
detect	O
other	O
diseases	O
of	O
the	O
lower	O
rectum	O
and	O
can	O
be	O
used	O
to	O
stage	O
primary	O
rectal	O
cancer	O
.	O
</s>
