FujiFilm SonoSite SII, User Manual Supplement

Page: 22 / 476

20 Measurements and calculations
Arterial calculations
In the Arterial exam, you can calculate ICA/CCA ratio, volume, volume flow, and percent reduction. The
Arterial calculations that you can perform are listed in the following table.
WARNINGS

To avoid incorrect calculations, verify that the patient information, date, and
time settings are accurate.

To avoid misdiagnosis or harming the patient outcome, start a new patient
form before starting a new patient exam and performing calculations. Starting
a new patient form clears the previous patient’s data. The previous patient’s
data will be combined with the current patient if the form is not first cleared.
Table 6: Arterial calculations
Calculation list Measurement name Results
CCA

Prox (Proximal)

Mid (Middle)

Dist (Distal)

Bulb
s (systolic),
d (diastolic)
ICA

Prox (Proximal)

Mid (Middle)

Dist (Distal)
s (systolic),
d (diastolic)
ECA

Prox (Proximal)

Mid (Middle)

Dist (Distal)

VArty
s (systolic),
d (diastolic)
WARNINGS

Trace only a single heartbeat. The VTI calculation is not valid if measured with
more than one heartbeat.

Diagnostic conclusions about blood flow based on VTI alone can lead to
improper treatment. Accurate blood flow volume calculations require both the
vessel area and velocity of blood flow. In addition, accurate blood flow velocity
is dependent on a correct Doppler angle of incidence.