Performing an Exam
T3300 Diagnostic Ultrasound System | 71 | B00601-010 4/10/17
The slope measurement is not restricted to either the horizontal or the vertical axis of the start
marker.
6.10.2.3 Time
Measure the length between two vertical time lines created by two cursors. The position of the
horizontal distance lines does not affect time measurements.
1. Touch Time. A crosshair cursor with horizontal and vertical axes appears on the time series
window. Drag the cursor to a desired start point on the horizontal axis and release it.
2. A second cursor appears. Drag it to the end point on the horizontal axis then release it to
complete measurement.
6.10.2.4 Heart Rate
Measure the length between two vertical lines created by two cursors in beat per minute (BPM). The
position of the horizontal distance lines does not affect the heart rate.
1. Touch Heart Rate. A crosshair cursor with horizontal and vertical axes appears on the time
series window. Drag the cursor to a desired start point on the horizontal axis and release it.
2. A second cursor appears. Drag it to the end point on the horizontal axis then release it to
complete measurement.
6.10.3 Measuring in Spectral Doppler Mode
The measured results of performing Trace, Semi-Trace and Auto Trace vary depending on the
transducer connected.
6.10.3.1 Velocity
Measure the blood flow velocity.
Touch Velocity. A crosshair cursor with vertical axis appears on the time series window. Drag the
cursor to the measurement point, and release your finger to place it.
6.10.3.2 Trace
Manually trace the Doppler spectrum.
1. Touch Trace. A crosshair cursor with vertical axis appears on the time series window. Drag the
cursor to a desired peak of the graph and release it.
2. A second cursor appears. Drag the cursor along the waveform on the graph to end diastole then
release it.
3. A third cursor appears. Drag it to the second peak of the graph and release it to complete the
trace.
6.10.3.3 Auto Trace
Trace the spectrum of Doppler waveforms.
Touch Auto Trace. The trace for the Doppler spectrum will be performed automatically with
measurements calculated and displayed on the screen.
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