<s>
Time-resolved	O
2D	O
phase-contrast	B-Algorithm
MRI	I-Algorithm
with	O
velocity	O
encoding	O
is	O
the	O
most	O
common	O
method	O
for	O
CSF	O
analysis	O
.	O
</s>
<s>
One	O
of	O
the	O
best-known	O
methods	O
is	O
Phase-Contrast	B-Algorithm
MRI	I-Algorithm
and	O
it	O
is	O
the	O
only	O
imaging	O
modality	O
for	O
both	O
qualitative	O
and	O
quantitative	O
evaluation	O
.	O
</s>
<s>
The	O
study	O
of	O
CSF	O
flow	O
became	O
one	O
of	O
Phase-contrast	B-Algorithm
MRI	I-Algorithm
's	O
major	O
applications	O
.	O
</s>
<s>
The	O
key	O
to	O
Phase-contrast	B-Algorithm
MRI	I-Algorithm
(	O
PC-MRI	O
)	O
is	O
the	O
use	O
of	O
a	O
bipolar	O
gradient	O
.	O
</s>
