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32 Cards in this Set
- Front
- Back
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What is radiotherapy? |
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How does radiotherapy work? |
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radiation can cause toxicity to normal tissues 6 factors that increase normal tissue toxicity |
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How can radiotherapy be given? |
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cobalt bomb |
a canadian invention that is able to produce high energy radiation |
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cause of biggest group of cancers worldwide |
chernobyl |
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most common ca worldwide |
lung |
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note: total radiation exposure at work is NO GREATER than their exposure from background radiation |
k
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How can radiotherapy be given? |
1. external beam 2. brachytherapy |
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what is external beam radiotherapy? +3 examples |
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what is Brachytherapy +examples |
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example of endocavitary brachiotherapy |
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prostate brachytherapy.. yeesh.. |
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what is largest cause of radiation exposure to general public? |
terrestrial radiation, ie. from the ground |
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what does a radiation oncologist's job description include |
trace the tumour on a treatment planning system |
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A |
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Treating with curative intent : 1. when would hte primary modality of tx be radiotherapy 2. when would primary modality be surgery vs. treating with palliative intent |
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C |
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Cancers that can be cured with radiotherapy alone? 3 |
1. skin Ca 2. prostate 3. glottic |
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Cancers that can be treated with radiotherapy + chemotherapy 4 |
1. lung 2. advanced head and neck Ca 3. anal canal Ca 4. cervical Ca |
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adjuvant radiotherapy 1. def'n 2. advantages (2) 3. examples of Ca where this is used (2) |
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by extension list 3 emergencies |
C therefore 1. spinal cord compression 2. decreased LOC from brain mets 3. and uncontrolled hemoptysis are rads onc emergencies |
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SPinal cord compression 1. investigation to order 2. service to consult 3. drug to start +dose |
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why is radiotherapy +surgery best option in spinal cord compression? what is the most important prognostic factor? |
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Brain mets: when do you need to treat urgently |
Patient’swith brain metastases can generally wait many days for treatment UNLESS theyhave signs of herniation |
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RT in uncontrolled bleeding from cancer |
•Patient’swith ANY type of uncontrolled bleeding (due to cancer!) can usually bepalliated with RT |
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SVC obstruction: what to do with these |
•Superiorvena cava obstruction used to be a radiation oncology emergency –Now you are better off calling interventional radiology for a stent ifthey are truly in medical distress |
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D |
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Situations where palliative radiotherapy is affective? 4 |
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situations where palliative radiotherapy is NOT effective )(2) |
1. liver mets 2. asymptomatic lesions |
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C |
