Mindray ultrasound with passive magnet for needle steering

does anyone have experience with the Mindray TE5/7 ultrasound units? it supposedly has magnetic sensors in the probe for needle visualization and steering in 4D. here is the promo ad I came across. I think they may use this at the UC Davis pain fellowship. anyone there have any insight?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pain Medicine Source Type: forums