PMID: 2120161Sep 1, 1990Paper

Treatment volume shaping with selective beam blocking using the Leksell gamma unit

International Journal of Radiation Oncology, Biology, Physics
J C FlickingerA Wu

Abstract

The Leksell gamma unit at the University of Pittsburgh uses 201 highly focused 60Co beams arranged in a hemispherical array. Selective beam blocking can be used to modify the treatment volume into ellipsoid shapes oriented in different directions to match better the shape of the target volume. Dose distributions for different blocking patterns were calculated using specially developed computerized 3-D treatment planning software. The changes in dose distribution with different blocking patterns predicted by computer were verified by film densitometry. Techniques for using selective beam blocking to match more closely the treatment volume to the intended target volume have the potential of reducing the likelihood of complications for radiosurgery with the Leksell gamma unit and need to be further developed.

References

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Citations

Jul 1, 1993·Medical & Biological Engineering & Computing·T S SuhY W Bahk
Feb 1, 1995·International Journal of Radiation Oncology, Biology, Physics·G Luxton, G Jozsef
Jan 1, 1996·International Journal of Radiation Oncology, Biology, Physics·M CarolS W Woo
Aug 14, 1999·Surgical Neurology·N MuthukumarJ C Flickinger
May 9, 2000·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·M ZehetmayerR Pötter
Jul 4, 2002·International Journal of Radiation Oncology, Biology, Physics·Carine KulikJean Rousseau
Jan 16, 2003·International Journal of Radiation Oncology, Biology, Physics·Pengpeng ZhangClaudio Sibata
Dec 29, 1999·International Journal of Radiation Oncology, Biology, Physics·L LuoY Fu
Oct 23, 1998·Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists·A H Maitz, A Wu
Aug 7, 2003·American Journal of Clinical Oncology·Lijun MaRobert Slawson
Jan 15, 1993·International Journal of Radiation Oncology, Biology, Physics·M E LinskeyL D Lunsford
Jun 24, 2006·Neurosurgery Clinics of North America·Lynn J VerheyWilliam T Curry
May 10, 2006·International Journal of Radiation Oncology, Biology, Physics·Nicolas MassagerMarc Levivier
Jun 1, 1992·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·L E OlssonB Nordell
Jul 1, 1995·The British Journal of Radiology·R RamaniD L Mason
Jan 27, 2005·Neurosurgical Focus·Thomas C Witt

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