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Behind the Radiation Doors

If you have ever visited the Agnesian Cancer Center, you may have asked yourself: “What’s behind that radiation door?” If you never had the opportunity to visit the Agnesian Cancer Center, I’m referring to the milky door in the radiation department behind which patients disappear and then re-appear a few minutes later with a big smile on their face. 

CT Simulator

The Agnesian Cancer Center houses the Phillips Brilliance Big Bore CT scanner in a large and brightly lit room.  Our large open “donut” shaped CT scanner will accommodate a variety of patient immobilization devices and set-up configurations.  The goal of the CT simulation is to scan the patient in a reproducible position, thus patient comfort is key throughout the entire process.  

Radiation Treatment Planning

We use the latest planning technology to develop the best plans for our patients.  MIM software is used to help the radiation oncologist identify the tumor with great accuracy, by overlaying the CT simulation scan done at the cancer center with an MRI or PET scan.  Every patient at the Agnesian Cancer Center receives a custom treatment plan using our Philips Pinnacle treatment planning software.  After a treatment plan is generated, qualified physics staff perform quality assurance to ensure safe and accurate delivery.

Linear Accelerators

The Agnesian Cancer Center has two linear accelerators that deliver external radiation.  Two accelerators help us treat patients more efficiently, so you will spend less time in our waiting room. In addition, the Rapid Arc technology allows for faster treatment times, so you will be on-and-off the table in no time. 

Some of the technical capabilities of our linear accelerators include:

  • 3D conformal treatments
  • Intensity Modulated Radiation Therapy (IMRT)
  • Volumetric Modulated Arc Therapy (VMAT)
  • Stereotactic radiosurgery (SRS)
  • Stereotactic body radiation therapy (SBRT)
  • Cone beam CT


Protura couch

The Agnesian Cancer Center was the first center in the world to install the Protura robotic couch on its radiation treatment machine.  The Protura couch is a robotic table-top that allows for small changes in positioning without having to physically move the patient on the couch.  This allows for more accurate treatments and saves time from re-positioning patients once they are on the table.  



Respiratory Gating

Tumors in the chest and abdomen often move while we breathe.   At the Agnesian Cancer Center, we have the ability to track tumor motion through our respiratory gating technology.  This technology allows us to know how the tumor moves during the breathing cycle and ensures accurate radiation delivery to the tumor.  


The Agnesian Cancer Center was the first in Wisconsin to offer cutting-edge medical treatments for prostate cancer that has spread to bone.  By injecting radioactive particles directly into the tumor, we can spare healthy tissue and limit complications that may be associated with other cancer therapies.  Our current arsenal of radionuclides includes: Radium 223 and Yttrium 90

For every cancer patient requiring radiation, our technology allows us to:

  • Deliver optimal doses to the tumor
  • Minimize radiation dose to normal tissues
  • Provide customized precise alignment
  • May decrease side effects
  • Reduce treatment time


As the only provider locally to offer advanced treatment options in radiation therapy, Agnesian Cancer Care is proud to be a leader in the latest treatment technology.


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