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modulated radiation treatment (IMRT)
which, as described, precisely targets
the tumor. However, the prostate
itself can move on a day-to-day basis
and thus there can be a geographic miss
if another modality is not used to
ensure that alignment is done on a daily
basis. B-mode acquisition and
targeting (BAT) utilizes an ultrasound
system to image and target the prostate
and surrounding bladder and rectum prior
to each radiation treatment. By
coupling the ultrasound probe with a
highly-accurate positioning device to
the linear accelerator, target position
will be verified on a daily basis.
This ultrasound is done externally.
Scattered radiation dose to
surrounding normal structures including
the rectum and bladder is thereby
significantly reduced.
We also provide high-dose-rate
brachytherapy and radioactive seed
implants for patients with prostate
cancer.
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