B-K Medical Pro Focus 2202, User Manual

Page: 221 / 356

General Pro Package 221
To turn real-time measurements on and off:
•
Click Real Time under Angle on the right side of the screen.
The real-time measurements are displayed to the left of the image when the
function is turned on.
On the Miscellaneous tab of the Measurement Setup window, you can set the
system so that real-time measurements are always displayed. See page 188.
NOTE: It is possible to collapse the section on the left that contains
measurement results. If real-time measurements are not displayed, check to see
whether the Measurement section is collapsed.
To select which real-time measurements are displayed:
1 Freeze the image.
2
Click the small arrow to the right of Real Time under Measurements, and make
sure that the ones you want are selected.
3 Unfreeze the image.
NOTE:
If you freeze the image when real-time measurements are selected, the
real-time results are also frozen.
NOTE: When real-time measurements are turned on, automatic curve tracing is
also turned on. Make sure that the trace appears to be a good fit to the spectrum
so that the basis for the real-time calculation is correct.
Noise Limit
You can reduce the noise (high frequency disturbances) in the data to improve the
accuracy of automatically traced curves.
To reduce the noise:
• Click Noise Limit above Angle on the right of the screen and drag the slider.
Low noise limits cut out more noise; high limits cut out less.
Carotid Velocities
LICA, RICA, LCCA, RCCA, LECA, RECA, V1 and V2 are carotid velocities that
are used to calculate the extent of stenosis in the carotid vessels.
The displayed velocity ratios are constantly updated as you change the measurement
of either of the velocities in the ratio.