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Measurement of rectal dose during HDR brachytherapy using the new MOSkin dosimeter

Journal Article


Abstract


  • In HDR prostate brachytherapy, post-treatment complications occur due to overdosing the rectum wall and urethra.

    An area of concern regarding treatment is related to how the rectal wall dose is calculated using treatment planning

    systems. Treatment planning systems can calculate the dose delivered to the rectal wall, assuming that the rectum is

    filled with water equivalent material. This assumption is not always correct, as the rectum is emptied before treatment

    begins. The aim of this research is to quantify the difference in the dose measured in an ‘empty’ rectal phantom, and

    in a rectal phantom filled with water equivalent material. Results indicate that the dose measured by the MOSkin and

    RadFET in an empty rectum is approximately 10–15% lower than the dose measured dose in a full rectum, and the

    dose calculated by the PLATO TPS, which assumes that the rectum is full. This could have implications on the design

    of HDR treatment plans.

UOW Authors


  •   Kwan, Ian (external author)
  •   Howie, Andrew (external author)
  •   Lerch, Michael
  •   Lee, Bong Soo (external author)
  •   Chin, Yaw Sinn (external author)
  •   Bucci, Joseph A. (external author)
  •   Perevertaylo, Vladimir L. (external author)
  •   Rosenfeld, Anatoly B.

Publication Date


  • 2008

Citation


  • Kwan, I., Howie, A., Lerch, M. LF., Lee, B., Chin, Y., Bucci, J., Perevertaylo, V. L. & Rozenfeld, A. (2008). Measurement of rectal dose during HDR brachytherapy using the new MOSkin dosimeter. Journal of Nuclear Science and Technology, 45 (5), 481-484.

Scopus Eid


  • 2-s2.0-84912033816

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2616

Number Of Pages


  • 3

Start Page


  • 481

End Page


  • 484

Volume


  • 45

Issue


  • 5

Abstract


  • In HDR prostate brachytherapy, post-treatment complications occur due to overdosing the rectum wall and urethra.

    An area of concern regarding treatment is related to how the rectal wall dose is calculated using treatment planning

    systems. Treatment planning systems can calculate the dose delivered to the rectal wall, assuming that the rectum is

    filled with water equivalent material. This assumption is not always correct, as the rectum is emptied before treatment

    begins. The aim of this research is to quantify the difference in the dose measured in an ‘empty’ rectal phantom, and

    in a rectal phantom filled with water equivalent material. Results indicate that the dose measured by the MOSkin and

    RadFET in an empty rectum is approximately 10–15% lower than the dose measured dose in a full rectum, and the

    dose calculated by the PLATO TPS, which assumes that the rectum is full. This could have implications on the design

    of HDR treatment plans.

UOW Authors


  •   Kwan, Ian (external author)
  •   Howie, Andrew (external author)
  •   Lerch, Michael
  •   Lee, Bong Soo (external author)
  •   Chin, Yaw Sinn (external author)
  •   Bucci, Joseph A. (external author)
  •   Perevertaylo, Vladimir L. (external author)
  •   Rosenfeld, Anatoly B.

Publication Date


  • 2008

Citation


  • Kwan, I., Howie, A., Lerch, M. LF., Lee, B., Chin, Y., Bucci, J., Perevertaylo, V. L. & Rozenfeld, A. (2008). Measurement of rectal dose during HDR brachytherapy using the new MOSkin dosimeter. Journal of Nuclear Science and Technology, 45 (5), 481-484.

Scopus Eid


  • 2-s2.0-84912033816

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2616

Number Of Pages


  • 3

Start Page


  • 481

End Page


  • 484

Volume


  • 45

Issue


  • 5