User’s Manual (Confidential)
OsteoSys Co., Ltd.
Model Designation : SONOST 3000 DOC. No. : OT06-2R7124
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④ T < -3, T > +3 : 2.7 of 1,000 persons
⑤ T < -2, T > +2 : 4.6 of 100 persons
For example, Person in T<-3 exist 1.35 ratio of 1,000 persons in whole
population.
Z-Score
Average BQI in the same age, that is BQI standard deviation in the same age.
① More than 0 : BMD is higher than the average of the same age.
② 0: Average value of the same age.
③ 0 and below : BMD is lower than the average of the same age.
Explanations of BUA Measurement MODE Terminology
① PEAK : Maximum value of signal in the frequency domain.
② Center Frequency : Value of center frequency.
③ Percent : % Bandwidth(3dB bandwidth ÷ Center Frequency × 100)
Generally, as these values are lower, BUA values is higher.
Explanations of SOS Measurement MODE Terminology
① Zero Point : Cross point of the time Ox which is used for acquiring the signal’s
position.
② Gain : Amplification degree of ultrasonic signal which is controlled
automatically.
③ Peak : Maximum value of signal in the time domain.
④ TOF(Time Of Flight) : Elapsed time of ultrasonic signal from transmission to
reception. It is used for SOS calculation.
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