9-2 Measurement
Measurement
Tools
Function
Distance Measures the distance between two points of interest.
Depth
The distance between probe surface and the probing point along
ultrasound beam.
Angle The angle between two intersected planes.
Area Measures the area and perimeter of a closed region.
Volume The volume of a target.
Cross Line
The length of two line segments, which are perpendicular to each
other.
Parallel Line The distance between each pair of parallel lines in a sequence.
Trace Length Measures the length of a curve on the image.
Distance Ratio
Measures the lengths of any two line segments and the calculated
ratio.
Area Ratio The areas of any two regions and the calculated ratio.
B histogram
The grayscale distribution of ultrasonic echo signals in a closed
region.
B profile The grayscale distribution of ultrasonic echo signals across a line.
Color Velocity Color flow velocity (only valid for Color mode).
Vas Area Measures the area of the vascular section of the blood flow.
9.2.2 M General Measurements
M general measurements refer to general measurements on M mode, Color M mode,
Free Xros M mode images. The measurements listed below can be performed:
Measurement
Tools
Function
Distance The vertical distance between two points.
Time The time interval between any two points.
Slope
Measures the distance and time between two points and calculates
the slope.
HR
Measures the time of n (n≤8) cardiac cycles and calculates the heart
rate in M mode image.
Velocity
Calculates the average velocity by measuring the distance and time
between two points.
9.2.3 Doppler General Measurements
Doppler general measurements refer to general measurements on PW/CW mode images.
The measurements listed below can be performed:
Measurement
Tools
Function
Time The time interval between any two points.
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