8-2 Measurement 
Cross Line 
The length of two line segments, which are perpendicular to each 
other. 
The distance between each pair of parallel lines in a sequence. 
Trace Length (Trace)  Measures the length of a curve on the image. 
Measures the length of a curve on the image. 
Double Dist 
Measures the length of two line segments, which are perpendicular to 
each other. 
Distance Ratio 
Measures the lengths of any two line segments and the calculated 
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 flow velocity (only valid for Color mode). 
Volume Flow  Blood flow through some vascular cross section per unit time. 
IMT 
Measure intima-media thickness. 
NOTE: The IMT function is unavailable on the product not configured 
with IMT. 
8.2.2  M General Measurements 
M general measurements refer to general measurements on M mode. The measurements 
listed below can be performed: 
Measurement 
Tools 
Function 
Distance  The vertical distance between two points. 
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.