Measurement Accuracy; Measurement Publications And Terminology; General References - FujiFilm SonoSite Edge II Manual De Instrucciones

Measurement accuracy

Table 1: M Mode Measurement and Calculation Accuracy and Range
M Mode Measurement
Accuracy and Range
Distance
Time
Heart Rate
a
Full scale for distance implies the maximum depth of the image.
b
An RMI 413a model phantom with 0.7 dB/cm MHz attenuation was used.
c
Full scale for time implies the total time displayed on the scrolling graphic image.
d
FUJIFILM SonoSite special test equipment was used.

Measurement publications and terminology

General references

Hip Angle/d:D Ratio
Morin, C., Harcke, H., MacEwen, G. "The Infant Hip: Real-Time US Assessment of Acetabular Development."
Radiology 177: p.673-677, December 1985.
Percent Area Reduction
Zwiebel W.J., J.A. Zagzebski, A.B. Crummy, et al. "Correlation of peak Doppler frequency with lumen
narrowing in carotid stenosis." Stroke, 3: (1982), p.386-391.
% Area Reduction = [1 - A2(cm
where: A1 = original area of the vessel in square cm
A2 = reduced area of the vessel in square cm
Percent Diameter Reduction
Handa, Nobuo et al., "Echo-Doppler Velocimeter in the Diagnosis of Hypertensive Patients: The Renal Artery
Doppler Technique," Ultrasound in Medicine and Biology, 12:12 (1986), p.945-952.
% Diameter Reduction = [1 - D2(cm)/D1(cm)] * 100
8
System Tolerance
< +/- 2% plus 1% of full
a
scale
< +/- 2% plus 1% of full
c
scale
< +/- 2% plus (Full Scale
* Heart Rate/100)%
2 2
)/A1(cm )] * 100
Accuracy By Test Method
Acquisition
Phantom
Acquisition
Phantom
Acquisition
c
Phantom
Range
0-26 cm
b
0.01-10 sec
d
5-923 bpm
d
Measurement accuracy