Our Radiation Services

CT Radiation Therapy Planning with 4D Technology

Discovery RT is a CT simulator that offers a unique set of features that enables flexible patient positioning, software to address challenges presented by patient motion and metal, precise treatment planning and an efficient workflow, all combining to deliver uncompromised radiation therapy planning for oncology patients.  Discovery RT boasts an 80 cm bore with an 80 cm field-of-view, enabled by Max Field of View* (MaxFOV), a new feature of this system. MaxFOV delivers CT images with specified spatial and density values to the edge of the bore-an industry first. 

GE Healthcare’s Smart Deviceless 4D technology delivers workflow efficiency and patient comfort in 4D motion assessment. Smart Deviceless 4D provides and displays images of all phases of a breathing cycle, which helps to simplify the motion assessment workflow.

The Discovery RT combines Smart Deviceless 4D technology with Smart Metal Artifact Reduction (MAR) to address two of treatment planning’s biggest challenges - the ability to outsmart metal and motion.

The GE Discovery CT simulator is equipped with the latest advancements in CT technology, which provides one of the many tools needed in order to create a custom treatment plan for the patients at Parkview Radiation Oncology.

Radiation Therapy Planning

Edge Linear Accelerator with HDMLC Technology and Hyper Arc

The Edge is a state-of-the-art linear accelerator coupled with real-time motion management to ensure fast, precise delivery of treatment.  It is a technology system consisting of imaging, body positioning, motion management, beam shaping, and dose delivery of radiation beams that target tumors with extreme precision.  The unit contains a 6 degree freedom couch that allows for accurate patient positioning.

The Edge™ radiosurgery system represents an evolution in the way advanced radiosurgery is delivered. With the Edge system, clinics may be able to treat more patients because of the speed, precision, and streamlined treatment planning developed in its architecture. The Edge™ radiosurgery system provides a turn-key solution for delivering full-body radiosurgery treatments with accuracy. Edge offers advanced tools designed to deliver highly conformal dose distributions to tumors of the lung, brain, spine, and other areas of the body where radiation is indicated.

One of the main advantages of Edge radiosurgery is its precision and accuracy.  The Edge comes equipped with HD-MLCs (High definition-Multi-leaf collimators) which enables the machine to shape the beam of radiation to cover very narrow targets, while limiting dose to normal tissue.

Higher Dosage, Fewer Treatments

By integrating the highest dose rate (2400 MU/ minute) with non-ionizing, direct and real-time guidance for target location, Edge offers surgeons and clinicians the ability to pinpoint the target and deliver highly focused treatments, in fewer sessions and at a noticeably fast rate while minimizing the dose received by surrounding healthy tissues.

As an all-in-one, single vendor radiosurgery solution, Edge’s real-time system architecture helps enable a high level of synchronization between imaging, patient positioning, motion management, beam shaping, and dose delivery technologies. Potentially reducing the overall time and resources required for surgery when compared to traditional methods can lead to an increase in the volume of procedures performed and lower per procedure costs for the hospital. In an effort to advance radiosurgery treatments, clinics worldwide have already adopted Edge to help advance the way cancer is treated.

EDGE™ Radiosurgery System – Clinical Benefits

Sub-Millimeter Accuracy

At Parkview Radiation Oncology, we use the Varian Edge TM radiosurgery system. This leading-edge technology ensures precision by using a real-time tumor tracking system to detect even the slightest tumor movement. The advanced precision of this system enables us to target a wide range of tumors that are typically difficult to reach with traditional surgery.

Every step of the Edge treatment is characterized by high-level accuracy so treatments can be delivered with confidence. Calibrated to perform accuracy checks every 10 milliseconds, the Edge treatment process is characterized by precision so treatments can be delivered safely and with confidence. The use of Monte Carlo equivalent algorithms for dose calculations, extra-fine 2.5mm High-Definition MLC leaves for beam shaping, real-time tracking for direct target localization, and beam specifications that are amongst the tightest in the industry, all join together putting treatment with Edge in a category of its own.

A streamlined evolution from traditional surgery, Edge offers QA tools to help ensure faster delivery conformality while minimizing the dose received by surrounding healthy tissues. Dedicated to quickly and accurately delivering radiosurgery, Edge integrates the highest dose rate with non-ionizing, direct and real-time guidance for target location. The large dose level is designed to maximize the amount of radiation to the targeted area while minimizing the amount of time patients spend being treated.

The Edge comes equipped with HyperArc technology, which enhances Parkview’sRradiosurgery Program by facilitating and simplifying delivery of complex radiosurgery treatments. Using HyperArc, clinicians are delivering non-coplanar SRS treatments within the 15-20-minute time slot normally allocated for conventional radiotherapy treatments.

Noncoplanar SRS offers dosimetric advantages over conventional SRS in terms of target conformity and dose gradients. The use of noncoplanar SRS, however, has been constrained by its complexity, the high levels of expertise involved, and the need for time-consuming setups and verifications. HyperArc removes these barriers by simplifying and automating much of the process, enabling clinicians to treat even multiple metastases without re-entering the vault to rotate the couch.

HyperArc treatments are planned using the latest version of the Eclipse™ treatment planning system. It capitalizes on the unique capabilities of Varian's TrueBeam® and Edge™ platform, and utilizes a simple “one-click” workflow that automates the process, including optional intrafraction imaging and couch rotations.

Advanced automation helps clinicians guide and maintain the accuracy of treatment delivery by continually tracking patient movements and adapting treatments as the target moves. This feature can potentially decrease the risks of unwanted dose to surrounding healthy tissues.

Fast Treatments

Leveraging the highest dose rate in the industry, 2400 MU/minute, Edge treatments allow for short treatment times, enhancing patient comfort. The use of RapidArc radiosurgery technology makes it possible to use the Edge system to deliver SRS and SBRT treatments typically in a standard radiotherapy treatment slot. Clinicians may deliver precisely sculpted 3D dose distribution to single lesions or multiple mets for stereotactic ablation of inoperable and high-risk operable tumors.

RapidArc radiosurgery, powered by Eclipse™ treatment planning system, enables planning specifically for radiosurgery treatments with automatic, easy to use contouring tools.

As a result, fast, accurate treatment delivery can not only help improve patient comfort by reducing the amount of time a patient spends on the treatment couch, but may also result in a lower overall peripheral dose.

Digital Architecture and Automation

Edge’s real-time system architecture enables a high level of synchronization between the functional capability of the gantry, collimator and couch. Having a carefully guided, workflow automation using intuitive visual cues to enhance safety and reduce operation times, Edge optimizes patient throughput. By streamlining imaging and patient positioning, Edge enables more treatment flexibility to treat a wide variety of cases throughout the body wherever radiation is indicated.

Bravos HDR (high dose rate) brachytherapy

Brachytherapy is an internal form of radiation therapy.  It involves placement or implantation of a radioactive material directly into or near a tumor.  The volume of tissue that is treated is limited, and the surrounding normal tissue receives little or no radiation. The word "brachytherapy" means "short therapy," indicating that the radiation’s effect is limited to short distances. This results in decreased toxicity and/or allows the escalation of radiation dose.

Brachytherapy can either be given with conventional low-dose sources, where the treatment takes place over several days in the hospital, or it can be given on an outpatient basis using a high-dose-rate (HDR) brachytherapy machine.

Low dose rate (LDR) brachytherapy implants were commonly used in the past.  In some medical facilities centers, high dose rate (HDR) brachytherapy has replaced LDR because of the following advantages:

  • HDR brachytherapy is performed on an outpatient basis, so there are no associated hospitalization costs and patients are not confined to a hospital bed.
  • There is no risk of blood clots forming in patients’ legs or lungs.
  • Because the radioactive source is remotely controlled by a computer, there is no radiation exposure to physicians, nurses and family members.
  • Since only cancerous tissues are exposed to the radiation, normal tissues are spared and the complication rates drop considerably.
  • Chances of cure are enhanced.


Xofigo (RA 223) Prostate

Xofigo (radium Ra 223 dichloride) injection is used to treat prostate cancer that no longer responds to hormonal or surgical treatment that lowers testosterone. It is for men whose prostate cancer has spread to the bone with symptoms but not to other parts of the body.

How Xofigo Works

Optune Cap for a certain type of brain cancer (GBM)

Optune is a wearable, portable, FDA-approved treatment for glioblastoma (GBM) that works by creating Tumor Treating Fields (TTFields), which are electric fields that disrupt cancer cell division.

Click HERE for more info.

Identify Patient Identification and Surface Tracking System

IDENTIFY incorporates patient safety, quality, efficiency and surface-guided radiotherapy (SGRT) features in a single, smoothly-automated workflow solution. The IDENTIFY system features a contact-less palm reader for patient identification, radio frequency identification (RFID) technology for proper accessory verification and positioning on the treatment couch, automatic synchronization with the oncology information system, and SGRT cameras for proper patient positioning and motion monitoring throughout the treatment.  This system ensures the correct patient is selected, the correct setup equipment is used for that patient, and the patient’s body contours are matching what was planned, bringing safety to the forefront for each patient.

SpaceOAR (prostate)

Stereotactic Radiosurgery

Stereotactic radiosurgery (SRS) is a highly precise form of radiation therapy that focuses high-power energy on a small area of the body. Despite its name, radiosurgery is a treatment, not a surgical procedure. Incisions (cuts) are not made on your body.

Stereotactic radiosurgery uses imaging and multiple external radiation beams to precisely target cancer cells in the brain or spine. The individual beams are directed at the tumor from various angles. When the beams intersect, they create high-intensity radiation that destroys the DNA of the cancer cells but leaves the surrounding healthy tissue virtually untouched.

The Edge Radiosurgery System

At Parkview Radiation Oncology, we use the Varian Edge TM radiosurgery system. This leading-edge technology ensures precision by using a real-time tumor tracking system to detect even the slightest tumor movement. The advanced precision of this system enables us to target a wide range of tumors that are typically difficult to reach with traditional surgery.

Benefits of Stereotactic Radiosurgery

SBRT offers many advantages, including:

  • Allows delivery of a higher dose of radiation to the tumor with fewer treatments
  • Shows outcomes that are equal to or better than conventional radiation therapy
  • Shortens treatment course, which is more convenient for you and not as disruptive to your life
  • Reduces side effects, including fatigue
  • More cost effective

Conventional radiation is typically delivered in small doses daily over many weeks. This can delay or interfere with other cancer treatments, such as chemotherapy. And many weeks of daily radiation treatment can significantly disrupt a patient’s life, including work. By contrast, SBRT can usually be given in 5 or fewer treatments. SBRT using advanced radiation technology also can lead to better outcomes and fewer side effects than conventional radiation therapy.

SBRT (stereotactic body radiosurgery)

SBRT is a noninvasive form of radiation treatment that involves highly precise, high-dose radiation beams that are focused on a small area of the body. It can deliver precisely targeted radiation in fewer high-dose treatments than traditional radiation therapy, which reduces the total amount of radiation to healthy tissue. SBRT requires advanced radiation technology that is available at Parkview Radiation Oncology.

Stereotactic body radiation therapy administers radiotherapy from several different points around the body, with the radiation beams meeting at the spot of the tumor. The tumor receives a very high dose of radiation, while surrounding tissue receives less, lowering the risk of side effects and complications.

SBRT is used for a number of cancers, most commonly in the lung, prostate, liver, pancreas, bones, soft tissue, head and neck region, and kidney. It is also used for cancers that have spread or metastasized to the lung, liver, bones, adrenal glands or lymph nodes.

Typically, radiation therapy may take weeks to complete, depending on the type and stage of cancer being treated. With SBRT, you receive 5 treatments or less over a span of 1-2 weeks. This advanced technology and innovative treatment dramatically reduces treatment time, is more manageable for you and reduces the overall dose of radiation. For example, while historically we treated prostate cancer with daily radiation treatment for 9 weeks, with more advanced SBRT technology we use we can often treat prostate cancer in 1 week.

In addition, side effects and cure rates are equal to or better than when compared to conventional radiation treatment.