FujiFilm VisualSonics Vevo F2 User Manual page 122

Vevo F2 Imaging System User Manual
M-Mode and AM-Mode
Motion mode (M-Mode) shows how a section of a 2D image changes over time, relative to a line laid over
the image. It is primarily used to measure the movement and dimensions of cardiac structures such as the
heart chambers and vessel walls. For example, it can be used to view a cross-section of a heart, and view
how the heart cross-section moves over time, relative to the line.
While B-Mode is a frame-based mode that uses multiple scanning beams, M-Mode is a time-based mode
that uses just one beam.
Anatomical M-Mode (AM-Mode) is a modification to M-Mode that allows the user to capture the sample
volume at an angle, rather than capturing the sample volume in a strict vertical position. It is mainly used in
echocardiography to obtain anatomically correct visualizations and measurements of the left ventricle.
Unlike M-Mode, which acquires data along a single acquisition line, AM-Mode data is re-constructed from
acquired B-Mode data, based on the ultrasound grayscale information along the sample volume line.
To use AM-Mode, adjust the angle of the gate using the AM-Mode Angle control. The system will
automatically switch to AM-Mode.
M-Mode and AM-Mode Image Display
In M-Mode and AM-Mode, the image display shows several items in addition to the standard B-Mode
interface.
Modes 122