Dose distribution around a 3.0-mm type 6702 I-125 seed

E. C. Scarbrough; G. E. Sanborn; J. A. Anderson; P. D. Nguyen; J. Y. Niederkorn; P. P. Antich

doi:10.1118/1.596484

Dose distribution around a 3.0-mm type 6702 I-125 seed

E. C. Scarbrough, G. E. Sanborn, J. A. Anderson, P. D. Nguyen, J. Y. Niederkorn, P. P. Antich

Research output: Contribution to journal › Letter › peer-review

5 Scopus citations

Abstract

The 3M Company recently produced a special version of the type 6702 seed for use in animal studies of ocular melanoma. The seed consists of a single 1–125 impregnated ion exchange resin sphere encapsulated in a 3.0-mm-long titanium cylinder, as opposed to the normal 4.5-mm cylinder containing from three to five resin spheres. Monte Carlo simulations and measurements show that the dose distribution around the 3-mm capsule differs in places by up to 10% from that of the 4.5-mm seed. In addition, the two seed types differ by 12% in the ratio of dose in tissue along the transverse seed axis to apparent activity. These differences must be taken into account when using these seeds.

Original language	English (US)
Pages (from-to)	460-463
Number of pages	4
Journal	Medical physics
Volume	17
Issue number	3
DOIs	https://doi.org/10.1118/1.596484
State	Published - May 1990

Keywords

1-125 dosimetry brachytherapy ocular melanoma Monte Carlo

ASJC Scopus subject areas

Biophysics
Radiology Nuclear Medicine and imaging

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10.1118/1.596484

Cite this

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title = "Dose distribution around a 3.0-mm type 6702 I-125 seed",

abstract = "The 3M Company recently produced a special version of the type 6702 seed for use in animal studies of ocular melanoma. The seed consists of a single 1–125 impregnated ion exchange resin sphere encapsulated in a 3.0-mm-long titanium cylinder, as opposed to the normal 4.5-mm cylinder containing from three to five resin spheres. Monte Carlo simulations and measurements show that the dose distribution around the 3-mm capsule differs in places by up to 10% from that of the 4.5-mm seed. In addition, the two seed types differ by 12% in the ratio of dose in tissue along the transverse seed axis to apparent activity. These differences must be taken into account when using these seeds.",

keywords = "1-125 dosimetry brachytherapy ocular melanoma Monte Carlo",

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AU - Scarbrough, E. C.

AU - Sanborn, G. E.

AU - Anderson, J. A.

AU - Nguyen, P. D.

AU - Niederkorn, J. Y.

AU - Antich, P. P.

PY - 1990/5

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N2 - The 3M Company recently produced a special version of the type 6702 seed for use in animal studies of ocular melanoma. The seed consists of a single 1–125 impregnated ion exchange resin sphere encapsulated in a 3.0-mm-long titanium cylinder, as opposed to the normal 4.5-mm cylinder containing from three to five resin spheres. Monte Carlo simulations and measurements show that the dose distribution around the 3-mm capsule differs in places by up to 10% from that of the 4.5-mm seed. In addition, the two seed types differ by 12% in the ratio of dose in tissue along the transverse seed axis to apparent activity. These differences must be taken into account when using these seeds.

AB - The 3M Company recently produced a special version of the type 6702 seed for use in animal studies of ocular melanoma. The seed consists of a single 1–125 impregnated ion exchange resin sphere encapsulated in a 3.0-mm-long titanium cylinder, as opposed to the normal 4.5-mm cylinder containing from three to five resin spheres. Monte Carlo simulations and measurements show that the dose distribution around the 3-mm capsule differs in places by up to 10% from that of the 4.5-mm seed. In addition, the two seed types differ by 12% in the ratio of dose in tissue along the transverse seed axis to apparent activity. These differences must be taken into account when using these seeds.

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Dose distribution around a 3.0-mm type 6702 I-125 seed

Abstract

Keywords

ASJC Scopus subject areas

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