Intraoperative Radiation Therapy (IORT)
St. Joseph Hospital remains at the forefront of medical innovation with
intraoperative radiation therapy (IORT), one of the most advanced forms
of radiation available in the United States. IORT delivers a single, high
dose radiation treatment to the tumor site at the time of surgery. This
treatment adds approximately 30-45 minutes to the surgical time. This
is used primarily for early stage breast cancer in women over the age
of 40, and can replace the need for 5-6 weeks of daily radiation treatment.
In addition to shortened treatment time, this type of focused radiation
avoids most normal tissue resulting in minimal side effects and excellent
cosmesis or appearance of the treated breast.
There are currently
two large clinical trials which have shown that early local tumor control rates and survival rates
are similar between IORT and the standard 6 week course of whole breast
At St. Joseph Hospital, a portable electron linear accelerator unit, called
Mobetron, is used to deliver intraoperative electron radiotherapy. St.
Joseph Hospital is one of the most experienced centers for this treatment
in the United States, having treated over 200 patients since 2010.
As Orange County’s first hospital to offer this advanced form of
radiation treatment for breast cancer patients, St. Joseph Hospital physicians
are experts in its use and will continue their pursuit of clinical excellence
and increased patient comfort by expanding the use of IORT to treat additional
cancer sites in the future.
For additional information on IORT, please call 714-734-6233.
Click here to find out more about IORT.