User's Manual

Acclarix AX3 Series Diagnostic Ultrasound System User Manual Measurements and Reports
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No.
Cardiac Measurement
Description
Tool
Thickness at End-diastole
IVSTs
Interventricular Septal Thickness at
End-systole
LVIDs
Left Ventricular Internal Diameter at
End-systole
LVPWs
Left Ventricular Posterior Wall
Thickness at End-systole
3.2
LVET
Left Ventricular Ejection Time
3.3
MV(Mitral
Valve)
E-F Slope
Mitral Valve E-F slope
EPSS
E point septal separation
3.4
LA/Ao
LA
Left atrial diameter
AoD
Aortic root diameter
RVOT Diam
Right Ventricular outflow tract
3.5
HR**
Heart rate
Table 8-4 Cardiac Measurements
* The tools can be switched by Tool Options in the touch screen after the Measurement is selected.
**System provides 1-8 cycles for HR measurement, depending on measurement setup.
Simpson’s Method of Disks (MOD)
Simpson‟s MOD is a method used to calculate LV diastolic and systolic volumes and ejection fraction.
Simpson‟s MOD is available in the Cardiac presets.
To use the Simpson‟s MOD measurement:
1. Invoke the B-mode Measure function.
2. Select LV Simpson measurement on the touch screen and then select one measurement label
from A4C Dias., A4C Sys., A2C Dias., and A2C Sys..A single caliper will be displayed on the
image field.
3. Move the caliper and press <Set> key to position the start point A at one end of left ventricular
long axis.
4. Draw the trace along the endocardium of the left ventricle.
5. Press <Set> key to fix the end point B and complete the trace. A new caliper positions
automatically at the apex (Point D) of the trace, connecting the Point C (Midpoint of point A and B).
This distance between point C and D is the longest detected by the system, as shown below:
6. Pivot the Point D caliper to a new desired position if necessary.
7. Press <Set> key to complete the measurement.