Improved dose homogeneity in scalp irradiation using a single set-up point and different energy electron beams

Ravindra Yaparpalvi, D. P. Fontenla, J. J. Beitler

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Homogeneous irradiation of the entire or a large portion of the superficial scalp poses both technical and dosimetric challenges. Some techniques will irradiate too much of the underlying normal brain while other techniques are either complex and involve field matching problems or may require sophisticated linear accelerator (linac) add-ons such as intensity modulated radiation therapy (IMRT)/electron multileaf collimation. However, many radiotherapy facilities are not equipped with such treatment modalities. We propose a practical treatment technique that can be delivered with a standard linac capable of producing high energy electrons. The proposed technique offers a simple alternative for achieving results equivalent to IMRT. Dose homogeneity throughout the treatment volume is achieved by aiming different energy electron beams at differential areas of the treatment surface to achieve improved dosimetry and rapid treatment delivery, while using a single set-up point. We introduced this treatment technique at our institution to treat superficial cancers of the scalp and other irregular surfaces.

Original languageEnglish (US)
Pages (from-to)670-677
Number of pages8
JournalBritish Journal of Radiology
Volume75
Issue number896
StatePublished - 2002

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Scalp
Electrons
Particle Accelerators
Radiotherapy
Therapeutics
Brain
Neoplasms

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Improved dose homogeneity in scalp irradiation using a single set-up point and different energy electron beams. / Yaparpalvi, Ravindra; Fontenla, D. P.; Beitler, J. J.

In: British Journal of Radiology, Vol. 75, No. 896, 2002, p. 670-677.

Research output: Contribution to journalArticle

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