The HP Sonos 5500 is a high-performance ultrasound machine that has many advanced features. It has all of the technological developments of the other HP Sonos ultrasound machines, but the HP Sonos 5500 has an advanced diagnostics system. The imaging technologies utilized by the HP Sonos 5500 include fusion harmonic imaging, contrast imaging, and high definition color flow. These, along with the integrated dynamic stress echo and color flow mapping, work together to produce incredibly high-quality images. The Philips Sonos 5500 has a user-friendly interface as well. It is quite intuitive and simple to learn. This ultrasound system also contains pre-programmed cardiovascular applications and stress applications. Plus, the user can customize other specific protocols as desired. Although the HP Sonos 5500 does contain the pre-programmed cardiovascular and stress protocols, because of the advanced diagnostics and high-quality imaging that it has, it can be used in nearly any type of ultrasound application.