Appendix A Technical Description
A - 16 Instructions for Use
Virtual Touch Imaging Option
(Available only on the ACUSON S2000 system and the ACUSON S3000 system)
 Compatible transducer: 4C1
Supported studies: Abdomen
 Compatible transducer: 4V1
Supported studies: Abdomen
 Compatible transducer: 9L4
Supported studies: Breast, Thyroid
 Compatible transducer: 6C1 HD
Supported studies: Abdomen
 Supports all basic measurements on either image in dual screen format
Virtual Touch Quantification Option
(Available only on the ACUSON S2000 system and the ACUSON S3000 system)
 Compatible transducer: 4C1
Supported studies: Abdomen
 Compatible transducer: 4V1
Supported studies: Abdomen
 Compatible transducer: 9L4
Supported studies: Breast, Thyroid
 Compatible transducer: 6C1 HD
Supported studies: Abdomen
 Use Virtual Touch quantification to measure tissue shear velocity (Vs) and elasticity (E) for
a selected region of interest. Virtual Touch quantification uses acoustic radiation force
impulse (ARFI) technology of diagnostic ultrasound to induce tissue displacement. A time-
controlled sequence of "push pulses" from the transducer induces a small displacement of
tissue. The ultrasound system measures shear wave velocity and elasticity at the region of
interest.
 Provides measurement labels for sites, lesions, and liver segments, which display in the
liver assessment section of the abdomen report
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