Microfocus X-ray imaging of the internal geometry of brachytherapy seeds

Tomoyuki Hasegawa, Takashi Hanada, Atsunori Yorozu, Hidetaka Ito, Shinji Masuda, Maki Kawahara, Katsunori Yogo, Kazushige Hayakawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Precise and reliable geometrical data on the internal structure of seeds are indispensable for dosimetric calculation in brachytherapy. We used a novel microfocus X-ray imaging technique for observing the internal structure of brachytherapy seeds. Two popular 125I seed models were evaluated. Obtained high precision images enabled us to observe the internal structure of seeds qualitatively. Geometrical size parameters were evaluated quantitatively with uncertainty of 0.01-0.04mm (k=2).

Original languageEnglish
Pages (from-to)13-20
Number of pages8
JournalApplied Radiation and Isotopes
Publication statusPublished - 2014 Apr


  • Brachytherapy
  • Internal geometry
  • Microfocus X-ray imaging
  • Model 6711
  • Model STM1251

ASJC Scopus subject areas

  • Radiation


Dive into the research topics of 'Microfocus X-ray imaging of the internal geometry of brachytherapy seeds'. Together they form a unique fingerprint.

Cite this