WARRANTY: One Year
SALES LEAD TIME: 14 DAYS
GENERAL:
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.
SPECIFICATIONS:
Tissue Mimicking Material
Speed of sound . . 1540 ±10 m/s
Attenuation . . . . 0.5 or 0.7 ±0.05 dB/cm/MHz
Targets
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)
Vessels
Size. . . . . . . . . . 5 mm diameter
Location . . . . . . 2 cm below surface; 2 to 16 cm at 40°angle
Blood Mimicking Fluid
Density . . . . . . . 1.03 g/cc
Speed of sound . . 1550 ±10 m/sec
Scatter size . . . . 4.7 micrometers average
Electronic Flow Control System
Constant flow mode . . . . . 1 to 12.5 ml/sec ±3%
Calculated velocities . . . . . . 10-110 cm/sec
Pulsatile flow mode . . . . . 5 programmed waveforms
Container Size. . . 40.6x24.8x40 cm (16x9.75x15.75 in)
Weight. . . . . . . . 10.4 kg (23 lbs)
All acoustic measurements at 4.5 MHz, 22°C