Toshiba Aplio 500 TUS-A500, Руководство по эксплуатации

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No. 2B771-004EN*M
23-4
23.5 Accuracy of Measurement
Accuracy of Each Clinical Measurement Parameter
Parameter Ranges Accuracy
- Image Depth Scale Up to 400 mm
<

5% or <1 mm, if below 20 mm
- Physio/Image Scales Up to 10 s
<

3%
- Distance/Depth Up to 400 mm
<

5% or < 1 mm, if below 20 mm
- Area Up to 999 cm
2
<

10% or < 0.41 cm
2
, if below 4 cm
2
- Circumference Up to 1800 mm <

5% or < 1 mm, if below 20 mm
- Angle
0 to 180

<

1

- Volume Up to 4200 cm
3
<

16% or < 1.3 cm
3
, if below 8 cm
3
- Velocity Up to 2000 cm/s
<

5% of the full scale
- Time Up to 10 s
<

3% of the full scale
- Heart Rate 20 to 300 bpm
<

3%
- Accel Up to 20000 cm/s
2
<

8%
- M distance Up to 280 mm <

5% or < 1 mm, if below 20 mm
- Slope Up to 1000 mm/s
<

8%
Range of Applicability of the Accuracy Specifications
These measurements will satisfy the accuracies stated above over the entire selected field of
view. The accuracy stated is either the measured value or the calculated value for worst case
conditions.
It should be noted, however, that the above values are not guaranteed for measurements
performed on stored images that use manual calibration or MPR images that have been created
based on data acquired using the 4D transducer. For details of manual calibration, refer to the
operation manual Measurements volume. For details of the 4D transducer, refer to the section
describing the 4D function in the operation manual Applications volume.
*