ค่า uniformity index ของ implantation ในการรักษามะเร็งแบบ high dose rate brachytherapy

Authors

  • โชติกา จำปาเงิน
  • วรรณภา เมธาภิรักษ์
  • จงจินต์ ภัทรมนตรี

Abstract

The planning score of an implantation in high dose rate brachytherapy can be evaluated by the dose volume histogram. It is a mean to evaluate the overall dose distribution within a specified volume showing degree of dose uniformity of that treatment planning. The uniformity indexes are about 3.0 for double plane, 1.5 for single plane, 1.O for single line source. The study shows that the degree of uniformity index depends on geometry of source, the method of calculation: optimization or non optimization as well as the reference level of prescribed treatment dose.

References

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Laarse RV The stepping source dosimetry system as an extention of the Paris

Godden TJ. Interstital therapy.In:Physical aspects of brachytherapy. Medical physics handbooks 19:Adam Hilger, Bristol, England 1988: 148-158 system.

Yeung F,Gurtler M, Mould RF Introduction to dose-volume histograms. In:Radiotherapy

treatment planning workshop. 1996: 61-71

Anderson LL. A "natural" volume-dose histogram for brachytherapy. Med. Phys. 1986; 13: 898-90

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Published

2025-03-12

How to Cite

1.
จำปาเงิน โ, เมธาภิรักษ์ ว, ภัทรมนตรี จ. ค่า uniformity index ของ implantation ในการรักษามะเร็งแบบ high dose rate brachytherapy. J Thai Assn of Radiat Oncol [internet]. 2025 Mar. 12 [cited 2025 Dec. 26];4(3):41-50. available from: https://he01.tci-thaijo.org/index.php/jtaro/article/view/277949

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Original articles