User guide

Chapter 4: Measurements and Calculations 43
Measurements
Chapter 4: Measurements
and Calculations
You can measure for quick reference, or you can
measure within a calculation. You can perform
general calculations as well as calculations specific
to an exam type.
Measurements are performed on frozen images.
For references used, see Chapter 5,
“Measurement References.”
Measurements
You can perform basic measurements in any
imaging mode and can save the image with the
measurements displayed. (See “To save an
image” on page 38.) Except for the M Mode HR
measurement, the results do not automatically save
to a calculation and the patient report. If you prefer,
you can first begin a calculation and then measure.
See “Performing and saving measurements in
calculations” on page 47.
Some features may not apply to your system.
Features available depend on your configuration,
transducer, and exam type.
To save a measurement to a calculation
and patient report
1 With the measurement active (green), press
the
CALCS key.
2 From the calculations menu, select a
measurement name.
Only measurement names available for the
imaging mode and exam type are selectable.
3 Save the calculation. (See “To save a
calculation” on page 47.)
To start a calculation before measuring, see
“Performing and saving measurements in
calculations” on page 47.
Working with calipers
When measuring, you work with calipers, often in
pairs. Results based on the calipers’ position appear
at the bottom of the screen. The results update as
you reposition the calipers by using the touchpad. In
trace measurements, the results appear after you
complete the trace.
Outside a calculation, you can add calipers by
pressing the
CALIPER key. You can have multiple sets
of calipers and can switch from one set to another,
repositioning them as needed. Each set shows the
measurement result. The active calipers and
measurement result are highlighted green. A
measurement is complete when you finish moving
its calipers.
Within a calculation, calipers appear when you
select from the calculations menu. (See “To select
from the calculations menu” on page 47.)
For an accurate measurement, accurate placement
of calipers is essential.
To switch the active calipers
 Do one of the following:
• To switch the active caliper within a set,
press the
SELECT key.
• To switch the active set when measuring
outside a calculation, select Switch
on-screen.
To delete or edit a measurement
 With the measurement active (highlighted), do
one of the following:
•To delete, select Delete on-screen.
• To edit, use the touchpad to move the
calipers.