heaphy 1 & 2 case race 2 – rt jemma hurley
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CANTERBURY / WESTLAND ABSTRACT - PowerPoint PPT PresentationTRANSCRIPT
HEAPHY 1 & 2CASE RACE 2 – RT
Jemma HURLEY
Sat 31st Aug 2013Session 3 / CR2-4
13:51 – 13:55
CANTERBURY / WESTLAND
ABSTRACTThis case follows the Radiation Treatment Planning process for a recurrent Glioblastoma Multiforme Brain patient. This patient received two courses of RT to the same site resulting in a total dose of 100Gy to the brain. Interesting points to be covered include patient history, RO prescription choice and associated evidence, planning process and patient implications. This case study will be focused on planning rather than treatment.
CASE RACE100GY BRAIN
Jemma HurleyRadiation Therapist Canterbury District Health Board
Patient Information 58 year old Female Diagnosis: Glioblastoma Multiforme Site: Left Brain
Patient History May 2011: Surgical debulking GBM June 2011: Commenced Radiation Therapy
concurrent w Temozolomide July 2011: Completed RT Jan 2012: Completed 6th cycle Temozolomide
Nov 2012: Recurrent dysphagia & headaches Dec 2012: Debulking recurrent GBM
commenced PCV chemo March 2013: MRI progression May 2013: Commenced Course 2 Radiation Therapy
Prescription Course 1: 60Gy/30# to Left Brain Course 2: 40Gy/20# to Left Brain
Total Dose to Left Brain = 100Gy
Planning Principles
Volumes Location of tumour made 100Gy
possible Screen dump
Course 1
Course 2
Composite C1/C2
DVHs composite plan
Patient Implications Brain Necrosis
Only significant after 100GyBrain can recover
Benefit versus Risk Survival
Further 5 months
References Short SC. Re-irradiation of brain
tumours – evidence, indications and limitations. European journal of cancer. 2009.