Biomedical Engineering Reference
In-Depth Information
Q
_
Width(aVF)
≥
40
∧
Q
_
Depth(aVF)>
3000
grd4
:
Q
_
Normal
_
Status
=
FA L S E
THEN
act1
:
Disease
_
step
4
:=
Acute
_
inferior
_
MI
END
The event
Determine_Age_of_Infarct
is used to determine the age of Infarct dur-
ing diagnosis process. The age of Infarct can be in different states as
recent
,
old
, and
indeterminate
. These states can be determined if the heart disease can be classified
using anyone disease that is given in the guards of the event.
EVENT Determine
_
Age
_
of
_
Infarct
WHEN
grd1
:
Disease
_
step
4
=
Acute
_
inferior
_
MI
Disease
_
step
5
∈{
anterior
_
MI, LVH , emphysema
}
Mice
_
State
Exclude
_
Mimics
_
MI
Disease
_
step
2
=
=
LBBB
THEN
act1
:
Age
_
of
_
Inf
:∈ {
recent, old, indeterminate
}
END
The event
Exclude_Mimics
is used to identify the Hypertrophic cardiomyopathy.
The guards of this event state that the heart has the condition of Acute inferior MI,
and the miscellaneous state of the heart confirms the Exclude Mimics MI.
EVENT Exclude
_
Mimics
ANY
exmi
WHERE
grd1
:
Disease
_
step
4
=
Acute
_
inferior
_
MI
grd2
:
exmi
∈
Mice
_
State
5
∧
exmi
=
Exclude
_
Mimics
_
MI
THEN
act1
:
Disease
_
step
5
:=
Hypertrophic
_
cardiomyopathy
act2
:
Mice
_
State
:=
borderline
_
Qs
END
The event
R_Assessment_Normal
presents a diagnoses process to test the normal
state of the R-wave. A set of guard predicates of this event shows that the depth of
R-wave is greater than or equal to 0 µm and less than or equal to 6000 µm in lead
V1 and age is greater than 30 years, the depth of R-wave is greater than 200 µm and
less than or equal to 12000 µm in lead V2 and age is less than 30, and the depth
of R-wave is greater than or equal to 1000 µm and less than or equal to 24000 µm
in lead V3 and age is greater than 30. Here, the age is relevant to the diagnosis of
myocardial infarction.
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