15. PET scans can show bone mets that are in hard to see areas like the ribs or scapula
16. Chemotherapy can make the bones look abnormal on a PET scan because the bone marrow is working hard to make new blood Normal looking bones prior to chemoRx Same patient after receiving chemo All the bones look active (bright yellow on the scan) This is normal and not a sign of bone cancer
17. PET Scans can be used to help target the radiation three dimensionally PET showing the cancer pushing into the back of the right hip bone
19. Bone met at L2 Radiation field A typical course of radiation is 10 treatments ( in some cases it is necessary to go slower, 20 to 25 trips)
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21. Local Side Effects of Radiation for Bone mets Sore throat or dry mouth Trouble swallowing or dry cough Loose bowels or cramps Bladder or rectal irritation
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23. Response of bone mets to radiation Symptoms respond within weeks The Xrays or scans may take months to show improvement, but eventually may come back to normal
25. 2006 2009 Response to Radiation Breast cancer metastatic to the left iliac bone, 3 years after radiation (still evidence of bone destruction on CT, but no longer hot on PET scan)
26. Bone Metastases to the Spine Involved vertebrae on the left and normal on the right
27. Kidney cancer in the spinal vertebrae surrounding the cord, and appearance after radiation…is it possible to safely radiate further?
28. Combine a CT scan and linear accelerator to ultimate in targeting (IGRT) and ultimate in delivery (dynamic, helical IMRT) ability to daily adjust the beam (ART or adaptive radiotherapy)