Recent installation of the first Performa model screen at the Apex Clinical Center in Suwanee GA. The special feature of this shielding is the large glass panes that replace the classic and obsolete copper or steel panel, which prevents its transparency and contributes to an increased sense of claustrophobia in patients, with the near certainty of not performing the diagnostic test. Instead, this type of system patented in italy, allows the patient to see who is outside the examination room and vice versa so that the patient does not feel the isolation created by the closed and cramped room. The 90-db attenuation level of disturbance is guaranteed by the use of two special shielding nets that coupled in a labyrinth joint, guarantee the full efficiency of visibility and shielding function.