<s>
Multiscale	B-Algorithm
motion	I-Algorithm
mapping	I-Algorithm
is	O
a	O
method	O
of	O
image	B-Application
analysis	I-Application
of	O
the	O
heart	O
.	O
</s>
<s>
The	O
analyzation	O
relies	O
on	O
a	O
combination	O
of	O
multiscale	O
image	B-Application
analysis	I-Application
,	O
motion	O
and	O
deformation	O
analysis	O
using	O
mathematical	O
moments	O
,	O
and	O
linear	B-Language
algebra	I-Language
.	O
</s>
<s>
Historically	O
,	O
analysis	O
of	O
heart	O
imaging	O
has	O
been	O
performed	O
by	O
"	O
eyeballing	O
"	O
,	O
i.e.	O
,	O
by	O
subjective	O
assessment	O
,	O
by	O
measurements	O
on	O
still	O
frames	O
and	O
M-Modes	O
images	O
,	O
and	O
later	O
by	O
Doppler	B-Algorithm
techniques	I-Algorithm
that	O
are	O
based	O
on	O
the	O
phase	O
shift	O
of	O
a	O
reflected	O
ultrasound	B-Application
signal	O
.	O
</s>
<s>
Such	O
analyses	O
are	O
by	O
necessity	O
constrained	O
to	O
the	O
motion	O
velocity	O
component	O
parallel	O
to	O
the	O
ultrasound	B-Application
beam	O
,	O
while	O
motion	O
perpendicular	O
to	O
the	O
beam	O
will	O
produce	O
no	O
phase	O
shift	O
in	O
the	O
reflected	O
ultrasound	B-Application
beam	O
and	O
therefore	O
appear	O
as	O
"	O
zero	O
velocity	O
"	O
by	O
such	O
Doppler	B-Algorithm
techniques	I-Algorithm
.	O
</s>
<s>
Soon	O
after	O
publication	O
of	O
this	O
method	O
of	O
analysis	O
at	O
international	O
conventions	O
and	O
in	O
journal	O
articles	O
,	O
similar	O
techniques	O
based	O
on	O
these	O
ideas	O
were	O
implemented	O
by	O
the	O
medical	B-Application
imaging	I-Application
industry	O
,	O
e.g.	O
</s>
