7-2 Measurement
7.2 General Measurements
7.2.1 2D General Measurements
2D general measurements refer to general measurements on 2D mode:
Measures the distance between two points of interest.
The distance between probe surface and the probing point along
ultrasound beam.
The angle between two intersected planes.
Measures the area and perimeter of a closed region.
The length of two line segments, which are perpendicular to each
other.
The distance between each pair of parallel lines in a sequence.
Measures the length of a curve on the image.
Measures the length of two line segments, which are perpendicular to
each other.
Measures the lengths of any two line segments and the calculated
ratio.
The areas of any two regions and the calculated ratio.
The grayscale distribution of ultrasonic echo signals in a closed
region.
The grayscale distribution of ultrasonic echo signals across a line.
7.2.2 M General Measurements
M general measurements refer to general measurements on M mode. The measurements
listed below can be performed:
The vertical distance between two points.
The time interval between any two points.
Measures the distance and time between two points and calculates the
slope.
Measures the time of n (n≤8) cardiac cycles and calculates the heart rate in
M mode image.
Calculates the average velocity by measuring the distance and time
between two points.