Three-field isocentric technique for breast irradiation using individualized shielding blocks

Gianni Conte, Ottorino Nascimben, Giacomo Turcato, Rolando Polico, Michael Bernard Idi, Laura Maria Belleri, Franca Bergoglio, Franca Simonato, Lanfranco Stea, Florindo Bugin, Norma Bortot

Research output: Contribution to journalArticle

Abstract

The three-field technique is the most common method used for breast and regional node treatment after conservative surgery. Several variants of this technique, which are characterized by complex geometrical problems, have been described. A possible simplification of this technique and the use of individualized shielding blocks both for anterior and for tangential fields is proposed, thus allowing for the simultaneous shielding of the half beam and the critical areas. Advantages of isocentrical techniques are thereby maintained, but the number of mechanical movements required is minimized and collimators and couch rotations are not needed. Patient set-up time is also greatly shortened. The accuracy of this technique has been verified using both photographic methods and thermoluminescent dosimetry.

Original languageEnglish
Pages (from-to)1299-1305
Number of pages7
JournalInternational Journal of Radiation Oncology Biology Physics
Volume14
Issue number6
DOIs
Publication statusPublished - 1988

Keywords

  • Breast irradiation
  • Field matching
  • Three-field technique

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Radiation

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    Conte, G., Nascimben, O., Turcato, G., Polico, R., Idi, M. B., Belleri, L. M., Bergoglio, F., Simonato, F., Stea, L., Bugin, F., & Bortot, N. (1988). Three-field isocentric technique for breast irradiation using individualized shielding blocks. International Journal of Radiation Oncology Biology Physics, 14(6), 1299-1305. https://doi.org/10.1016/0360-3016(88)90410-5