The iU22 was launched in 2004 and has a long history of improvements and revisions that have made it the gold standard for over a decade.The Philips iU22 is a premium shared service ultrasound machine that offers the best image quality possible through xMatrix transducers that offer the best aspects of single-crystal and 4D transducers. The iU22 offers the top of the line image quality and features available for Radiology, OB/GYN, Cardiac, Vascular and even specialty imaging like MSK, Pediatric, and Elastography.