The principles behind an ultrasound machine are relatively simple. Like the sonar on a submarine, the ultrasound machine releases sound waves at a cyclical rate. These sound waves enter the body, they bounce off the harder tissues and slow as they pass through softer tissues ultimately returning to the machine in an altered form. The ultrasound machine then creates an image out of these returning waves which the technician then interprets. While the fundamental principles remain the same, modern ultrasound machines have made fantastic strides over older machines.
The power of emitter and the sensitive receiver of sound waves on modern ultrasound machines has greatly increased. The increased power of the emitter allows for a more better penetration and reflection of outgoing sound waves and the increased sensitivity of the receiver helps the clarity of the image that returns. Of course these advances are important, but they don’t improve the imaging as deeply as the increased computing and processing power of modern ultrasounds.
Modern ultrasounds have advanced well beyond the crude electronic display which gives the basic image of the waves. Certainly, one can still purchase an ultra-sound which only includes basic imaging of the waves. However, many of the more advance ultrasounds include advance rendering software which can render not only two dimensional images, but three dimensional models. Moreover, they can also record the images in their memory and replay it back over time allowing for the detailed analysis not only of an image or model, but it’s alterations over time. The advance processing power not only reduces wait times for complex tasks, but can also make comparisons between the different ongoing scans and post warnings of any abnormal returns, thus helping the technician make a more complete analysis.
One should also keep in mind features which ease use. Wider touch screens will ease life for the technician a great deal more than a small blurry screen will.
