<s>
Ultrasound	B-Application
of	O
the	O
urinary	O
tract	O
involves	O
the	O
use	O
of	O
an	O
ultrasound	B-Application
probe	O
to	O
image	O
parts	O
of	O
the	O
urinary	O
tract	O
.	O
</s>
<s>
Ultrasound	B-Application
involves	O
a	O
probe	O
that	O
is	O
placed	O
near	O
a	O
structure	O
and	O
uses	O
the	O
transmission	O
of	O
ultrasound	B-Application
waves	O
through	O
a	O
structure	O
to	O
produce	O
images	O
,	O
after	O
computer	O
processing	O
.	O
</s>
<s>
Ultrasound	B-Application
of	O
the	O
urinary	O
tract	O
is	O
performed	O
by	O
a	O
probe	O
placed	O
on	O
the	O
abdominal	O
wall	O
,	O
called	O
a	O
transducer	O
.	O
</s>
<s>
Use	O
of	O
duplex	B-Algorithm
ultrasound	I-Algorithm
to	O
determine	O
if	O
there	O
is	O
backward	O
flow	O
of	O
urine	O
,	O
for	O
example	O
in	O
vesicoureteric	O
reflux	O
.	O
</s>
<s>
Ultrasound	B-Application
is	O
non-invasive	O
and	O
does	O
not	O
involve	O
radiation	O
,	O
unlike	O
some	O
methods	O
of	O
imaging	O
of	O
the	O
urinary	O
tract	O
such	O
as	O
X-rays	B-Algorithm
or	O
CT	B-Algorithm
scans	I-Algorithm
.	O
</s>
<s>
These	O
include	O
X-rays	B-Algorithm
,	O
CT	B-Algorithm
scans	I-Algorithm
or	O
MRI	O
scans	O
.	O
</s>
