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Barel et al. Ultrasound body contouring

A B C

D E F

G H I

2
Figure 3: Representative photographs before (A-C) and after (D-I) treatments with the Contour I™ at high power (Isppa = 440 W/cm ) in a
single subject. Abdominal circumference decreased by 3.1 cm from baseline at 1 month after first treatment (D-F) and an additional 3.3 cm
after 2 additional treatments (G-I) (total reduction, 6.4 cm). The reduction from baseline in the untreated control (thigh) area was 0.4 cm at
completion of treatment
the corresponding rates in the low-power group were DISCUSSION
both 70.6% [Table 4]. More subjects in the high-power
group preferred the Contour I™ over liposuction In the search for the gold standard of non-invasive
(89.5% vs. 70.6%) [Table 4]. technology for body contouring, ultrasound energy
is a promising tool. The present study evaluated
Safety endpoints the cumulative effect of successive treatments with
Adverse events included erythema, petechial rash, the Contour I™ ultrasound system on abdominal
circumference, with comparison of two acoustic output
folliculitis, and hyperesthesia. Six subjects (16.7%) levels: 440 W/cm (high power) and 370 W/cm (low
2
2
reported mild to moderate adverse events, 3 in power). Prior studies have shown that the ultrasonic
each group. There was no relationship between the energy delivered by the Contour I™ system disrupts
occurrence of adverse events and the acoustic power cells in the histological level and causes a transient
of the ultrasound. The rate of adverse events per increase in blood lipids.
treatment sessions was 5.5%. All adverse events
resolved spontaneously by the end of the study, with This study had a few limitations that should be
no need for medical intervention. In no case were the noted. Although statistically significant, the number
adverse events a reason for terminating a treatment. of participating patients is not very large, and subject
372 Plastic and Aesthetic Research ¦ Volume 3 ¦ December 14, 2016