SonoCiné Image Acquisition Station Model 201, PN 501775000 is an accessory to ultrasound imaging Systems facilitating their use as an adjunct to mammography for B-mode ultrasonic screening imaging of the breast when used with a linear array transducer consisting of the following components: Image Acquisition Station Model 201 – PN 501775-000, Image Acquisition Station Software Application V3.1.x, PN 501642, Reading Station Software Application, V3.1.x, PN 501973.