WARRANTY: One Year

The Gammex 1425A LE Doppler Flow System tests both Doppler and B-mode ultrasound systems using one uniquely  designed unit. Gammex combines its low echo matrix with strategically placed line reflectors and anechoic cyst targets at 2, 4, and 6 mm depths. Two 5 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, replicating a carotid artery. The other vessel descends 45 degrees from the surface to test Doppler sensitivity and to train different scanner  techniques. All of this is combined with a flow controller with microprocessor that has a range of 1 to 12.5 ml/sec within  3% FS accuracy. You can access five programmable test programs and five preset pulse flow patterns with the easy-to-use display panel. This allows for accurate  reproducible testing time after time. By combining the flow system, phantom, and electronic flow controller into a self-contained dual purpose Doppler Flow System, the Gammex 1425A LE is an excellent instrument for performing a multitude of functions. Scanner selection, quality control testing, training, and research can all be performed using this multi-faceted ultrasound tool.

All of the following quality indicators can be measured in real time:

• Maximum signal penetration

• Channel isolation or directional discrimination

• Registration accuracy of duplex sample gates and similarities between B-mode and color flow images

• Flow rate readout accuracy for various angles, beam directions and operating modes

The Gammex 1425A LE is not only one of the most versatile dual-purpose systems available, but it’s completely portable as well. This makes our Doppler Flow System a must-have for your ultrasound quality control.

Speed of sound . . 1540 ±10 m/s

Attenuation . . . . 0.5 or 0.7 ±0.05 dB/cm/MHz

Cyst speed of sound. . . . . . . 1540 ±10 m/s

Cyst attenuation. . 0.05 ±0.01 dB/cm/MHz

Diameter of nylon lines . . . . . 0.1 mm (0.004 in)

Size tolerance. . . ±5%

Location tolerance . . . . . . ±0.1 mm (0.004 in)

Size. . . . . . . . . . 5 mm diameter

Location . . . . . . 2 cm below surface; 2 to 16 cm at 40°angle

Density . . . . . . . 1.03 g/cc

Speed of sound . . 1550 ±10 m/sec

Scatter size . . . . 4.7 micrometers average

Constant flow mode . . . . . 1 to 12.5 ml/sec ±3%

Calculated velocities . . . . . . 10-110 cm/sec

Pulsatile flow mode . . . . . 5 programmed waveforms

Container Size. . . 40.6×24.8×40 cm (16×9.75×15.75 in)

Weight. . . . . . . . 10.4 kg (23 lbs)

All acoustic measurements at 4.5 MHz, 22°C