4 Probe Selection , Machine Controls , and Equipment

A basic understanding of physics and orientation is essential for understanding ultrasound. However, when standing in front of the ultrasound machine, you need to make some concrete decisions about what probe to use, and what buttons to press, in order to obtain a good image—sometimes known as knobology. This chapter covers the basics of probes and probe selection as well as the buttons found on typical ultrasound machines. While these controls are fairly standard, there are variations from machine to machine and the users will need to spend some time familiarizing themselves with the actual equipment they have— preferably before entering the patient’s room. Some additional equipment and logistical concerns have also been discussed.