Full Digital Mechanical Sector Scanning Ultrasonic Diagnostic Instruments (Vet) User’s Manual V2.14
Circumference/area measurement with trace method
1. In B, B/B mode, freeze desired image, the cursor is located in the “Measure” position of display
area;
2. Press key, the measurement methods are showed in the lower left of the screen, press direction
keys to choose “Trace”, press key again, the cursor will show “+”;
3. Press direction keys to move the “+” mark to desired position, press key to set the “+” mark
position as the starting point of the measurement;
4. Press direction keys to move the“+” mark to the end point of the measurement. At the same time, a
locus appears in the direction of operation between the two measurement marks. The measured
circumference value is displayed automatically at the built-in mark “C: 00000mm” on the right
part of the screen. Press key to display at the built-in mark “A: 00000mm
2
” the value of the
measured area formed by measurement line enclosure;
5. Press key, the measurement methods are showed in the lower left of the screen, continue to
choose “Trace” to measure;
6. Repeat steps 3, 4 to complete the multi-group data measurement;
7. Continuously press key twice to quit the measurement status;
8. Press direction keys to choose “Clear” and then press key to clear all marks and data;
9. Press key to unfreeze, clear all marks and data and quit the measurement status.
7.3 Slope/Heart rate/Cycle Measurement
The method to measure slope/hear rate/cycle is identical with distance measurement.
Note: In B/M mode, if both starting point and end point of the measurement mark fall into the
B-mode area, the value of the “+: ”refers to distance; if starting point and end point of the
measurement mark fall into the M-mode area, the value of the “+: ”refers to depth; if the
starting point and end point are in separate areas, the “+: ”will display “----”sign or
invalid value.
+: denotes depth measured in mm (millimeter)
EF: denotes slope coefficient measured in mm/s (millimeter per second)
HR: denotes heart rate measured in times/minute (times per minute)
T: denotes cycle measured in ms (millisecond)
Attention: The accuracy of software measurement: distance measurement ≤ 1mm;
area measurement ≤ 1mm
2
; volume measurement ≤ 1cm
3
; heart rate measurement ≤
1bpm; time measurement ≤ 1ms. Due to differences in images obtained by each user in
different times, the actual object for the accuracy of the measurement may be greater
than the above-mentioned values.