Samsung MYSONO U6 Bedienungsanleitung PDF herunterladen (Seite 282)

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Operation Manual

When represented by SD, a point near the average indicates a value closer to ±0 SD and a point

away from the average indicates a value closer to the maximum or minimum value. The greater

part of the range falls within ±3 SD, and ±1 SD, representing 68.3% of the entire range. Thus it can

be seen that most fetal measurements are tightly clustered around the average value.

The Percentile represents a point in distribution from between 0 and 100 inclusive. Therefore, the

average point is represented as 50 Percentile.

As shown in the ﬁgure, the average point corresponds to 0 SD (that is, 50 Percentile).If a point is in

the range between -1 SD and +1 SD, it falls within 68.3% of the entire range. This means that the

point falls in the range between 16 and 84.

Further, if a point is in the range between -2 SD and +2 SD, it falls within 95.5% of the entire range.

Thus, the point falls in the range between 3 and 97.

The SD and Percentile are interchangeable. Percentile can be used when a fetal measurement

ranking is desired, and SD can be used when the distance between actual fetal measurements and

the average measurement is sought.

While the range of Growth table references that are primarily used with OB measurement data

varies depending on the user, the typical range accepted by most users is as below:

1) When references are created based on SD:

X

-2.0 SD ~ +2.0 SD (when converted to Percentile: 2.28 Percentile ~ 97.72 Percentile)

X

-1.5 SD ~ +1.5 SD (when converted to Percentile: 6.68 Percentile ~ 93.32 Percentile)

X

-1.0 SD ~ +1.0 SD (when converted to Percentile:15.87 Percentile ~ 84.13 Percentile)

2) When references are created based on Percentile:

X

2.5 Percentile ~ 97.5 Percentile (when converted to SD: -1.96 SD ~ 1.96 SD)

X

5.0 Percentile ~ 95.0 Percentile (when converted to SD: -1.645 SD ~ 1.645 SD)

X

10.0 Percentile ~ 90.0 Percentile (when converted to SD: -1.288 SD ~ 1.288 SD)

Closing Reports

Click the OK button on the Ultrasound Report screen, or press the Exit or Report buttons on the control

panel. The screen will switch to the Diagnosis Mode screen that was displayed before loading the report.

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Samsung MYSONO U6 Bedienungsanleitung Seite 282