A Paradigm Shift: Adaptive Radiation Therapy - UT ...
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A Paradigm Shift: Adaptive Radiation Therapy CARE • RESEARCH • INNOVATION • EDUCATION OUR MISSION: • Deliver world-class patient care with the most technologically advanced treatment options • Conduct groundbreaking basic, translational, and clinical research • Provide quality education to the next generation of medical practitioners and scientists
Exploring New Approaches
I am pleased to introduce you to the expanded Radiation Oncology Building at
UT Southwestern Medical Center. Our expansion adds 71,000 square feet of space to our
state-of-the-art treatment and research facilities, which were already the largest in North
Texas.
In a sense, the size of our expanded facilities matches the ambitious scope of our
aspirations and vision. For years, UT Southwestern has been a recognized leader in the
field of radiation oncology, advancing research in stereotactic ablative radiotherapy,
immunotherapy, and personalized patient care through the use of artificial intelligence.
Now, with the opening of our expanded building, we’re preparing to enter an exciting phase
in the field of radiation oncology – adaptive therapy – which is not just the next iteration in
care but a paradigm shift. I invite you to read more about this approach – as well as the
technology and behind-the-scenes research at UT Southwestern that will make it possible
– elsewhere in this brochure.
Using adaptive therapy, we’re also exploring an innovative, more personalized way
of delivering radiation treatments for our patients. This concept, called Personalized
Ultrafractionated Stereotactic Adaptive Radiotherapy (PULSARTM), will be evaluated in a
series of clinical trials at UT Southwestern over the next several years.
These approaches and ideas are exciting, of course, but it could be said these
advancements complement what we’re already doing. New technologies and treatments,
clinical research and trials, and personalized care that’s focused on the patient – these are
things that have already been our hallmarks.
We’re excited to welcome you to our expanded facilities – and to the exciting future of
radiation oncology at UT Southwestern.
Hak Choy, M.D., FASTRO
Professor and Chair of Radiation Oncology
1
Expanded Facility Opens
the Door to New Therapies
The Radiation Oncology expansion will soon enable UTSW
to bring a new avenue of treatment to patients – adaptive
therapy – that combines real-time, high-resolution imaging
and modern radiation techniques to deliver ultra-precise
treatment that can quickly be adapted to changes in
patients’ anatomy and tumor size.
The key to that advancement is the technology. UT Southwestern has filled the expanded building with
seven imaging/treatment machines that are truly state-of-the-art – and unmatched. UT Southwestern’s
collection of these highly advanced machines is the largest in the world within one facility.
“The adaptive machines not only provide precise image-guidance to tumors, they can realign
and reshape radiation beams to the borders of the tumor as it changes, meaning we’ll be able to
better target tumors and avoid healthy tissue,” says Dr. Robert Timmerman, Vice Chair of Radiation
Oncology. “When fully operational, the adaptive process will take just minutes.”
That adaptive capability will also make treatment regimens easier on patients, he notes, as they won’t
have to follow strict preparation routines in order to receive precise, effective radiotherapy. “With
this equipment, we’ll be able to account for the shape, position, and relationships of all organs close
to the tumor each day and literally replan the treatment, if needed, while patients are on the table,”
Dr. Timmerman says. Previous technologies would take a week or more to prepare sophisticated
radiotherapy plans.
UT Southwestern has plans to take the technology further by combining it with a “big data” approach
enhanced by artificial intelligence. The goal: Create even more effective and highly personalized
treatments. Called PULSAR, the innovative approach is scheduled to be explored in multiple clinical
trials at UT Southwestern.
“The basic idea behind PULSAR is that we will extend the interval between individual radiotherapy
pulses by weeks or months, allowing enough time to observe meaningful change,” Dr. Timmerman
says. “The change can be exploited. As an example, our preclinical studies show PULSAR gives the
immune system a chance to mount a more effective response.”
Robert Timmerman, M.D., FASTRO
Professor, Vice Chair, and Medical Director
Technology:
Adaptive Radiotherapy Treatment Machines
“This distinctive campus with its unique technology opens the opportunity for our medical doctors
to provide truly personalized adaptive radiation therapy to our patients,” says Dr. Arnold Pompos,
Associate Professor of Radiation Oncology and Director of Strategic Expansion Plans.
UTSW’s Radiation Oncology facility has a collection of the most sophisticated treatment machines
housed anywhere. Coupled with image-guided therapy, the equipment is extremely versatile and
capable of treating an array of cancer malignancies – giving us the ability to provide total cancer care
under one roof.
The additional “smart” treatment technologies provide:
• A personalized patient experience
• AI-assisted radiation therapy
• A wide range of options for
treatment delivery, including:
- Flexibility
- Efficiency
- Precision
- Adaptability to changes in the
patient’s anatomy, tumor size,
and position
- Ability to monitor the treatment
progress due to biological and
functional changes
3
A NOTICEABLE DIFFERENCE WITH UNITY:
Magnetic Resonance-Guided
Radiation Therapy
THE TUMOR NO LONGER HIDES
The Unity linear accelerator provides:
• Personalized adaptive radiation therapy with MR guidance
• Imaging capabilities equal to a diagnostic MRI scanner
• Enhanced quality of soft tissue visualization compared to
computed tomography (CT imaging)
• Real-time visualization of the tumor during radiation
MR-GUIDED ADAPTIVE THERAPY
Conventional CT MR Imaging
A Steppingstone to an Entirely
New Radiation Treatment
DESIGNED TO DELIVER:
• Image-guided radiotherapy (IGRT)
• Biology-guided radiotherapy (BgRT)
with tumor tracking (BgRT is currently not available.)
• Unique treatment field up to 100 centimeters long
for treating longer anatomical areas
• High-quality computed tomography
imaging rotating 60 times faster
than other radiotherapy
machines
• Radiation distribution in 100
different directions
• Reduced side effects through
enhanced conformal planning
Future Imaging Research in Radiation Therapy Advancement
Using RefleXion
• UTSW is one of two centers in the world that are pioneering the adoption of this technology.
RefleXion is an advanced radiotherapy machine that plans to integrate a positron emission
tomography (PET) scanner and ring gantry medical linear accelerator (linac).
• UTSW is currently collaborating with both industrial and academic partners to prepare and
conduct a clinical trial to show the potential with and benefits from BgRT.*
• The successful deployment of this technology will enable BgRT that utilizes both anatomic
information, such as determined on CT, as well as biology information that is captured from PET
to precisely treat the tumor with a personalized radiotherapy plan and real-time tumor tracking.
* BgRT is currently not available.
5
Adaptive Therapy Requires Transformative
Technology and Evolutionary Thinking
To successfully offer adaptive therapy requires a bevy of highly sophisticated imaging
machines capable of quickly adapting to changes in a patient’s anatomy and tumor size. To
then take that precise level of treatment and bring it to the next level of personalized care
requires strong research, the use of artificial intelligence – and a vision for the future.
Adaptive therapy today is
focused on conforming radiation
to changing anatomy to make
treatment more precise, notes
Dr. Steve Jiang, Vice Chair of
Radiation Oncology. But, he adds,
the dosage level and treatment
schedule remain the same
throughout despite the other
changes. Moving forward, UTSW’s
goal is to take data gleaned from
research and artificial intelligence
to make the care not just more
precise but more personal.
“In the near future we’ll have more intelligent adaption based on biomarkers, for example,”
he says. “We’ll be able to prescribe different levels of radiation to patients based on their
unique response to treatment and what models and past data for similar conditions suggest
are optimum.”
He points to PULSAR, UT Southwestern’s innovative concept in radiotherapy treatment that
will be tested in eight clinical trials, as an example of the approach.
“We can deliver one dose, and then based on feedback measures such as biomarkers,
imaging, and other things, we can determine the ideal time for the next dose,” Dr. Jiang
says. “Is it one week later? Three weeks? And how much radiation should we give in the next
treatment? More? Less? That is the ultimate way to deliver adaptive therapy and to tailor
treatment to every individual patient. We hope in the future we’ll be able to do that.”
Steve Jiang, Ph.D.
Professor, Vice Chair, and Chief of the Division
of Medical Physics & Engineering
Artificial Intelligence-Assisted Radiation with
Ethos
Features:
• X-ray-driven personalized adaptive radiation therapy
• High-quality, fast delivery of CT images
• AI-driven technologies to assist in real-time adaptive treatment planning
Head and Neck Case Study
Treatment Volume and Dose Comparison
Conventional Radiation AI-Assisted Daily Adaptive Conventional Radiation AI-Assisted Daily Adaptive
Treatment Volume Treatment Volume Treatment Dose Treatment Dose
Optimizing Quality, Safety, and Outcomes
“The expanded building is a confluence of multiple state-
of-the-art technologies and the foundation of our vision for
Radiation Oncology over the next five to 10 years,” says Dr.
David Sher, Associate Vice Chair for Clinical Operations.
“That vision, and all the technology behind it, is aimed at
vastly improving outcomes, including both the cancer control
rate and patients’ quality of life. These machines possess
unbelievable tools for fine-tuning the delivery of radiation
therapy, precisely defining the location of disease, and
minimizing the dose to normal, healthy tissues to an extent
almost unimaginable just five years ago.”
Complementing the precise instruments and enhancing the quality
and safety of therapy at UT Southwestern is a one-of-a-kind
system designed to improve safety, efficiency, and the patient
experience. Upon arrival for treatment, patients are equipped with
wristbands that use real-time location system (RTLS) technology
that not only allows providers to know where each patient is but
when in their visit they are.
“This is a unique system we developed and provides our patients
with a crucial safety advantage,” Dr. Sher says. “It seamlessly
aligns and verifies all components of treatment for each individual
person, thus eliminating errors, and it allows us to know how
long each treatment takes, which in turn provides us with tools to
optimize the scheduling of treatments. This minimizes wait times,
which can’t be overstated because time is important, and the live feedback it gives us – having all
parts of the treatment automated and linked together electronically – is wonderful for the patient
experience.”
David Sher, M.D., M.P.H.
Professor, Associate Vice Chair for Clinical Operations, and
Chief of the Head and Neck Radiation Oncology Service
8
A Glimpse of the Future of Radiation Oncology
The expanded Radiation Oncology facility at UT Southwestern is not just state-of-the-art: It’s a
home for where the future of radiotherapy is headed. Advanced, leading-edge technology. New
treatment paradigms. Innovative clinical research. All will be here – and more – within the walls of this
remarkable addition, which will bring our total combined space to more than 130,000 square feet.
“Patients can continue to expect high-quality care administered by exceptional physicians and staff,”
says Kajal Desai, Assistant Vice President of Radiation Oncology Services. “The other thing they can
expect is an efficiently run clinic. It’s all part of a focused investment to advance patient care.”
Kajal Desai
Assistant VP of Radiation Oncology Services
Here’s some of what you’ll find inside
the Radiation Oncology Clinic:
• 49 exam rooms
• 14 advanced imaging/treatment machines
• 2 CT simulators/AIRO
• MR simulator
• High-dose-rate brachytherapy suite
• Xstrahl treatment machine
• GammaPod treatment machine for breast cancer
• 2 minor procedure rooms
• Patient support room
• 2 children’s areas
• Cafeteria
10NON PROFIT
US POSTAGE
PAID
TWMS
5323 Harry Hines Boulevard
Dallas, Texas 75390-8546
Opportunity Employer. Women, minorities,
veterans, and individuals with disabilities are
encouraged to apply.
Department Overview
LEADERSHIP
• Hak Choy, M.D., FASTRO, Professor and Department Chair
• Robert Timmerman, M.D., FASTRO, Professor, Vice Chair,
and Medical Director
• Steve Jiang, Ph.D., Professor, Vice Chair, and Chief of the
Division of Medical Physics & Engineering
• Michael Story, Ph.D., Professor, Vice Chair, and Chief of the
Division of Molecular Radiation Biology
OUR SPECIALIZED DISEASE TEAMS INCLUDE
• Breast • Head and Neck
• Central Nervous System • Lung
• Gastrointestinal • Lymphoma
• Genitourinary • Melanoma and Sarcoma
• Gynecological • Pediatrics
CONTACT US
2280 Inwood Road, Dallas, Texas 75390
214-645-8525
FOR MORE INFORMATION, VISIT OUR WEBSITES
Education: utsouthwestern.edu/radonc
Patient Information: utswmed.org/rad-onc
FIND US ON SOCIAL MEDIA
Facebook.com/UTSWRadiationOncology
Twitter.com/UTSW_RadOnc
Instagram.com/utswradoncYou can also read
