Biomedical Engineering Reference
In-Depth Information
(
A
)
(
B
)
Figure 9.10
(
A
) Temples before and after seven treatments of resistant scars using Lux 1540-nm stamped NAFR using 50% overlap, 70 mJ/dot, 15 ms pulse.
(
B
) Cheeks, excoriated acne, before and after three treatments using Lux 1540-nm stamped NAFR using 50% overlap, 60 mJ/dot, 15 ms pulse.
Source
: Photo
courtesy of Robert Weiss, MD.
(
A
)
(
B
)
Figure 9.11
(
A
) Before and (
B
) after fi ve treatments with LUX 1540-nm stamped NAFR using 50% overlap, 70 mJ/dot, 15 ms pulse: signifi cant smoothing of acne
scars is seen.
Source
: Photo courtesy of Robert Weiss, MD.
reported by several authors (139-143). Hasegawa and colleagues
treated 10 Asian patients with acne scars using the Fraxel SR
laser at 6 mJ of pulse energy and 1000-1500 MTZ/cm
2
of fi nal
density (139). The results after up to three treatments at 2- to
3-week intervals revealed that good-to-excellent improvement
was reported in seven patients and fair improvement in three
patients as assessed by physicians. No patients showed scarring
or hyperpigmentation as a result of the treatment.
Lee and colleagues treated 27 Korean patients with moderate-
to-severe atrophic acne scars, including ice-pick, boxcar, and
rolling scars with the Fraxel SR750 (140). Three to fi ve sessions
were performed at 3- to 4-week intervals using 12-20 mJ and
densities of 750-1500 MTZ/cm
2
(35-70%). At 3 months after
last treatment, 8 patients (30%) reported excellent improve-
ment, 16 patients (59%) signifi cant improvement, and 3 patients
(11%) moderate improvement in the appearance of acne scars.
