Page 34 - Brachytherapy
P. 34

L O W   D O S E   R A T E   ( L D R )





        using dose rate at 0.4 Gy/h - 2.0 Gy/h





        LDR is a powerful form of internally delivered radiation


        therapy  that  destroys  many  types  of  cancers  including


        cervical,  esophageal,  head  and  neck  and  lung,  but  it  is


        most  often  used  to  treat  prostate  cancer.  With  LDR


        brachytherapy,  the  radioactive  sources  are  positioned


        inside  or  immediately  adjacent  to  the  tumor  for  a


        minimum  of  several  days  but  may  be  left  in  position


        permanently.






        It  is  targeted  only  at  the  site  of  the  tumour  so  the


        radiation  kills  the  cancer  cells  without  causing  major                                                                                      B E N E F I T S   O F   L D R


        damage  to  surrounding  healthy  cells.  Seeds  which  are


        tiny  capsules,  the  size  of  a  grain  of  rice,  containing  the                                                                                 Extremely precise radiation therapy delivered internally.


        radiation are passed through fine needles and positioned                                                                                             Used  alone  or  applied  after  surgery  to  help  prevent
                                                                                                                                                             recurrence of cancer.
        directly  into  the  prostate  gland.  It  is  not  major  surgery                                                                                   Single treatment session.


        and           usually              you           will          only            spend              1       day           in                           Usually pain-free.


        hospital.  Generally  LDR  brachytherapy  has  a  low                                                                                                Minimizes  risk  of  common  short-  and  long-term  side


        complication  rate,  and  most  men  return  to  their  usual                                                                                        effects.


        pre-treatment activities within a couple of days.
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