Mindray Imagyn 7, Operator'S Manual

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4 - 24 Operator’s Manual
4 Setup
For example, to create a user-defined measurement item (HC/AC):
a. Enter name for the item, such as “calculation 1.”
b. In Region select “Obstetric,” then select the measurement tool sources “2D” and
“Measurement”.
c. Find HC in the “Item Name” list, click to select it, then double-click HC in the Result
Name box on the right side. The index is added to the formula.
d. In the Calculator, click “/” and it is added to the formula.
e. Find AC in the “Item Name” list, click to select it, then double-click AC in Result Name
box on the right side. The index is added to the formula.
The function description is as follows:
The following physiological indicators can be added to the formula.
Unit Used to enter numbers and functions in the formula.
Function Method Number of Parameters Function Description
sin sin(a) 1 Sine (the ratio of the opposite to the
hypotenuse)
cos cos(a) 1 Cosine (the ratio of the adjacent to
the hypotenuse)
tan tan(a) 1 Tangent (the ratio of the opposite to
the adjacent)
atan atan(a) 1 Arctangent (the result is expressed in
radian.)
min min(a,b,...) ≥ 2 Minimum
max max(a,b,...) ≥ 2 Maximum
sqrt sqrt(a) 1 Square root
pow pow(a,b) 2 Calculate b power of a
exp exp(a) 1 Exponential function with natural
constant e as the base
ln ln(a) 1 Logarithm with natural constant e as
the base
log log(a) 1 Logarithm with 10 as the base
avg avg(a,...) ≥ 1 Average value
abs abs(a) 1 Absolute value
PI PI / Constant π , 3.1415926
NOTE:
The letter “a” and “b” in the “Method” Column are parameters.
Name Definition Unit
Age Age day
Attributes Descriptions