Mini-Doppler Flow Test System

The 1430 LE Mini-Doppler Flow Test System provides a realistic test medium for assessing:

Maximum signal penetration
Channel isolation of directional discrimination
Registration accuracy of duplex sample gates and similarities between B-Mode and color flow images
Flow rate readout accuracy

The 1430 LE Mini-Doppler Flow Test System is designed to provide a sonographer with advanced design features that allow for both Doppler and B-Mode ultrasound system tests in one unit. This product consists of the flow system, phantom, and electric flow controller meter.

The B-Mode Phantom component of the 1430 LE Mini-Doppler Flow Test System is based on our 404GS LE Small Parts Gray Scale Phantom that provides advanced technology for measuring image quality on small parts and intracavity ultrasound scanning systems. With added grey scale targets this small parts phantom also measures contrast, temporal resolution and system linearity. The phantom incorporates the Tissue Mimicking gel which provides a smoother background texture and composite film scanning surface that has improved transmission properties.

Unique to the 404GS LE phantom are the closely spaced pin targets. By spacing them closer together, our targets are ideal for testing a range of high frequency transducers. Resolution patterns and all vertical and horizontal pins are made of 0.1 mm nylon fibers for better detail definition and spatial resolution. Three grey scale targets of -6 dB, +6 dB and +12 dB relative to the background material are included. A series of anechoic cysts with diameters of 1, 2, 4 and 7 mm permit easy evaluation of system noise and distortion parameters.

Two 4 mm vessels are incorporated into the system to meet with FDA Doppler sensitivity recommendations. One vessel is parallel to the scan plan at 2 cm, and the other vessel descends 35 degrees from the surface and is used for measuring Doppler sensitivity and for developing scanner techniques.

This self-contained system provides a broad range of available flow rates and test objects. The enhanced microprocessor- based flow controller meter produces accurate flow rates from 1 to 17 ml/sec corresponding to 0 to 174 cm/sec measurable velocities with a 1% full scale (FS) accuracy.

The 1430 LE Mini-Doppler Flow Test System is an all-in-one portable system powered by a built-in LI/ion rechargeable battery. The universal charger is included with the system.

1430 LE-0.5 Mini-Doppler Flow Test System, 0.5 Attenuation

1430 LE-0.7 Mini-Doppler Flow Test System, 0.7 Attenuation

Ultrasound Mini-Doppler Flow Test System

SPECIFICATIONS

Tissue Mimicking Material
Speed of Sound 1540 ±10 m/s Attenuation 0.5 or 0.7 ±0.05 dB/cm/MHz

Grey Scale Targets
Contrast -6, +6, & +12 dB relative to background
Diameter 7 mm Speed of Sound . . 1540 ±10 m/s
Attenuation 0.5 or 0.7 ±0.05 dB/cm/MHz

Anechoic Cysts
Diameters 1, 2, 4, and 7 mm
Speed of Sound 1540 ±10 m/s Attenuation 0.05 ±0.01 dB/cm/MHz

Blood Mimicking
Fluid Density 1.03 g/cc
Speed of Sound 1550 ±10 m/sec Scatter Size 4.7 micron average

Vessels
Size 4 mm inside diameter
Location horizontal 2 cm below surface; diagonal at 35 degrees from 1.5 cm below surface

Electronic Flow Control System
Measurable Velocities 0-174 cm/sec Pulsatile Flow Mode preprogrammed for 0.25-2 seconds/pulse

Pin Targets
Diameter of nylon lines 0.1 mm (0.004 in)
Vertical Spacing 5 mm at 1 cm to 9 cm deep
Horizontal Spacing 10 mm at 1 cm and 5 cm deep

Container Construction
Size 22.9 x 15.9 x 21.9 cm (9 x 6.25 x 8.625 in)
Weight 4.4 kg (9.5 lbs)
AC Input Voltage 110 vac - 240 vac 50-60Hz
Battery LI-ion, rechargeable, universal charger and plugs included

All acoustic measurements at 4.5 MHz, 22° C