Samsung SA8000 SE Manual do Utilizador descarregar pdf (Página 2)

5 - 2 SA8000 SE Operation manual

Measurement Range and Accuracy

NOTE

For optimal performance, the accuracy check should be carried out every year

according to the measurement accuracy table that is provided in the manual.

The measurements provided by the system do not define specific physiological or anatomic

parameters. Rather, what is provided is a measurement of a physical property such as a

distance or velocity for evaluation by the clinician.

For each of the measurements available on the system, the measurement accuracy and range

over which that accuracy is valid are shown in the following tables. Measurement accuracy is

also constrained by the caliper placement capability limit.

The RMI413 phantom is used for all 2D and M Mode measurement accuracy tests. The

RMI1425A phantom is used for Doppler measurement accuracy tests.

Unless specified otherwise by a probe or application, all linear distance movements have the

following accuracy limits.

▐ 2D Mode

Measurement Type Range Accuracy Notes

Axial Distance 0.01-25.00 cm +/- 2% or 2 mm

Lateral Distance 0.01-35.00 cm +/- 2% or 2 mm

Diagonal Distance 0.01-25.00 cm +/- 2% or 2 mm

Area 0.01-1,000cm

+/- 4% or 0.25 cm

Circumstance 0.03-10,000 cm +/- 3% or 5 mm

Volume 0.01-39,000.00 cm

+/- 8%

NOTE

1. The accuracies are calculated using the following equations:

Distance error (2% or 2mm) = Image Pixel error (1% or 1mm) + Hardware error

(1% or 1mm)

Area error (4%)= Distance 1 x Distance 2

Volume error (8%)= Distance 1 x Distance 2 x Distance 3

Circumference error (3% or 5mm)= Distance error ( 2% or 2mm) + Calculation

precision ( 1% or 3mm)

2. The phantom used is Multi-purpose phantom, RMI 413, from GAMMAX, Inc.

USA.

1 2 3 4 5 6 7 ... 54 55

Sem comentários

Samsung SA8000 SE Manual do Utilizador Página 2