GE Healthcare Achilles - Manual (Page 4)

Comparison of Achilles and competitive ultrasonometers
to DXA for osteoporosis testing
Percentage of 60-year-old women that tested positive for osteoporosis
1
10
20
30
40
50
Sahara ** QUI Omnisense **
radius SOS
Central DXA
(femoral
neck BMD)
Achilles Omnisense
phalanges
SOS
IGEA ** DBM
sonic ADSOS
Estimated osteopor
osis pr
ev
alence (%)
(60-year
-old women)
4%
12%
14%
Overestimated
Underestimated
16%
24%
50%
Among these ultrasonometers, Achilles
most closely matches DXA findings
based on the percentage of 60-year-old
women it determines to have osteopo-
rosis, as defined by a DXA T-score <-2.5
at the femoral neck.
Osteoporotic fracture risk assessment as
discriminating as DXA at the hip and spine.
The osteoporotic fracture risk assessment provided by Achilles closely matches
prevalence as defined by central DXA (see chart below).
1 Yet it’s fast and affordable.
Its high negative predictive value — 97 percent for 50- to 59-year-old Caucasian women —
makes Achilles especially useful for discriminating between those not at risk for fracture
and those in need of further evaluation by central DXA.
4
Additionally, Achilles has proven long-term precision, making it useful for monitoring
bone changes.
5,6,7 It’s the only QUS device cleared for monitoring by the Food and Drug
Administration.
Clinical confidence is
based on many features:
Dynamic signal strength compen-
sation allows measurement over
a wide range of bone density
Bi-directional measurement
ensures a consistent reading
Measurement site temperature
is controlled for more accuracy
Results expressed as Stiffness
Index — a composite of Speed
of Sound (SOS) and Broadband
Ultrasound Attenuation (BUA) —
compensate for the effect of
heel width and temperature
Real-time image provides visual
confirmation of proper heel
placement (Achilles Insight only)
Better care can be
anywhere with Achilles
Achilles provides fast, affordable, easily
portable care, helping you reach more
patients with the accurate assessment
and follow-up care they need.