stereotactic radiation
DESCRIPTION
Stereotactic radiation requires precision and accuracy to treat patients safely. With a couch surface that can tilt in 6 directions, treatment can be given with less difficult, more quickly and more safely. A charity, Golf Fights Cancer, is generously supporting Lowell General Hospital in making this 6 degree of freedom couch available to help my patients. Thank you to everyone who attended the Good Guys Invitational!TRANSCRIPT
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STEREOTACTIC RADIATIONImproving Our Short Game
October 6 2014
Matthew Katz, MD
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Radiation Therapy
PurposeCure
Organ Preservation
Relief of Symptoms
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Radiation and Golf
Human factors
Technical/Physical Factors Geometry Accuracy Reproducibility Power
Credit: Ben Hogan
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Need for High Precision
Palliative Brain metastasis Spinal metastasis
Curative Lung cancer Liver
Retreatment Past radiation
Delivered in 1-5 treatments
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Stereotactic Radiation
3D coordinate system localizes area for treatment
Radiosurgery = single dose
SBRT = 5 treatments or less
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Immobilization for Accuracy
Framed
Frameless
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Goal = Par 2
Simulation
Treatment Planning
Quality Assurance
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Getting to the Green
Neurosurgery Radiation Oncology
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Treatment Planning and QA
Established stroke Angle of approach
aligning beam to tumor, or “target”
Power (dose)
Dry run and safety checks complete before patient arrives
No adjusting approach on the fly
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Treatment room = Green
Multidisciplinary Team
Neurosurgery
Radiation Oncology
Radiology
Treatment Planning
Radiation Therapists
Nursing
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Stereotactic = Long putt
• <1 - 5 mm accuracy
• Low tolerance for change in conditions
• No Mulligans
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Our Pros on the Green
Ensure correct treatment delivery
Execution of ideal approach
Efficiency, comfort for patient
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Ensuring It’s Safe To Treat
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Varian TrueBeam
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Staying Even Par
6 Degrees of Freedom (6DOF)
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Imaging Before Treatment
Pretreatment
Ensure accurate treatment
Less time to treatment = better accuracy
Source: Dave Pelz
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Advantages of 6DOF Couch
Less chance of patient moving before treatment
More accurate, more comfortable
More efficient, less waiting time
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Thank you