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
STEREOTACTIC RADIATIONImproving Our Short Game
October 6 2014
Matthew Katz, MD
Radiation Therapy
PurposeCure
Organ Preservation
Relief of Symptoms
Radiation and Golf
Human factors
Technical/Physical Factors Geometry Accuracy Reproducibility Power
Credit: Ben Hogan
Need for High Precision
Palliative Brain metastasis Spinal metastasis
Curative Lung cancer Liver
Retreatment Past radiation
Delivered in 1-5 treatments
Stereotactic Radiation
3D coordinate system localizes area for treatment
Radiosurgery = single dose
SBRT = 5 treatments or less
Immobilization for Accuracy
Framed
Frameless
Goal = Par 2
Simulation
Treatment Planning
Quality Assurance
Getting to the Green
Neurosurgery Radiation Oncology
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
Treatment room = Green
Multidisciplinary Team
Neurosurgery
Radiation Oncology
Radiology
Treatment Planning
Radiation Therapists
Nursing
Stereotactic = Long putt
• <1 - 5 mm accuracy
• Low tolerance for change in conditions
• No Mulligans
Our Pros on the Green
Ensure correct treatment delivery
Execution of ideal approach
Efficiency, comfort for patient
Ensuring It’s Safe To Treat
Varian TrueBeam
Staying Even Par
6 Degrees of Freedom (6DOF)
Imaging Before Treatment
Pretreatment
Ensure accurate treatment
Less time to treatment = better accuracy
Source: Dave Pelz
Advantages of 6DOF Couch
Less chance of patient moving before treatment
More accurate, more comfortable
More efficient, less waiting time
Thank you
