B ultrsound is the necessary equipment of hospitals. There is a larger market in the domestic. Recently, many B ultrasound manufacturers appeared gradually. At present, there are eighty to ninty manufacturers and the foreign brands have thirty. Every type B ultrasound price is six thousand to one million. This make many purchasers don’t know how to choose who are not familiar with products. Now, introduce how to choose a good performance B ultrasound from product performance.

First, Black and white ultrasound:

1, Gray-scale: Early machine is in sixteen-sixty gray–scale and modern machine is about in 256 gray scale;

2, Resolution: Use special module detection

3, Function, Doppler function, several measurement ability

many images storage, dynamic focus, frequency conversion function, equiping with broadband probe.

4, Probe, it can be equipped with probe, such as heart, abdomen, convex array, phased, vaginal probe, rectal probe, esophageal detector, puncture probe, intraoperative probes, the high frequency probe.

5, Image processing: Turned over black and white, Image edge processing, smooth processing and fixing.

Second, Color ultrasound

1, image quality: Good two dimension black and white image, color image color uniform

2, Digital broadband technology: It refers to ultrasonic launching, receiving and delaing

3, Secondary harmonic technology: Use contrast agents to enhance vascular image effect

4, Three dimension imaging technology: Use computer to do three dimension reconstruction

5, Rich computing functions

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