SonoSite titan - About the Acoustic Output Table

144 Chapter 6: Safety
Safety
Prostate Imaging Applications
This system transmits ultrasound energy into the prostate of an adult male using 2D, M Mode, color
power Doppler (CPD), and pulsed wave (PW) Doppler to obtain ultrasound images. The prostate
gland can be assessed for the presence or absence of pathology.
Superficial Imaging Applications
This system transmits ultrasound energy into various parts of the body using 2D, M Mode, color
Doppler (Color), color power Doppler (CPD), directional color power Doppler (DCPD), and pulsed
wave (PW) Doppler to obtain ultrasound images. The breast, thyroid, testicle, lymph nodes, hernias,
musculoskeletal structures, soft tissue structures, and surrounding anatomical structures can be
assessed for the presence or absence of pathology. This system can be used to provide ultrasound
guidance for biopsy and drainage procedures, vascular line placement, and peripheral nerve blocks.
Vascular Imaging Applications
This system transmits ultrasound energy into the various parts of the body using 2D, M Mode, color
Doppler (Color), color power Doppler (CPD), directional color power Doppler (DCPD), and pulsed
wave (PW) Doppler to obtain ultrasound images. The carotid arteries, deep veins in the arms and
legs, superficial veins in the arms and legs, great vessels in the abdomen, and various small vessels
feeding organs can be assessed for the
presence or absence of pathology.
About the Acoustic Output Table
Transducer Model is the SonoSite transducer model.
Warning: This system is not intended for use in providing guidance for central nerve blocks,
i.e., the brain and spinal cord, or for ophthalmic applications.
Table 4: Acoustic Output Terms and Definitions
Term Definit ion
I
SPTA.3
Derated spatial peak, temporal average intensity in units of milliwatts/cm
2
.
TI type Applicable thermal index for the transducer, imaging mode, and exam type.
TI value Thermal index value for the transducer, imaging mode, and exam type.
MI Mechanical index.
I
pa.3
@MImax
Derated pulse average intensity at the maximum MI in units of W/cm
2
.
TIS (Soft tissue thermal index) is a thermal index related to soft tissues. TIS scan is
the soft tissue thermal index in an auto-scanning mode. TIS non-scan is the
soft tissue thermal index in the non-autoscanning mode.