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| Year : 2005 | Volume
: 30
| Issue : 1 | Page : 14-19 |
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Dosimetry Of Ophthalmic Applications Using 125l Seed Sources
A Shanta, U B Tripathi, S Vandana, B C Bhatt
Correspondence Address:
A Shanta
 Source of Support: None, Conflict of Interest: None  | Check |
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lntraocular melanoma is the most common primary malignancy of the eye and radiation therapy using ophthalmic plaque has proved successful for its management. The dose prescription point recommended for 1251 eye plaque therapy is usually 5 mm from tumour base centre for tumours with 5 mm or less height and tumour apex, otherwise. A computational programme was written to generate data for the dosimetry of eye plaque therapy using 125,seeds. Variation of central axis depth dose and isodose distributions at reference depth have been studied for different diameter plaques. The reference dose rate chosen for a clinical application, based on treatment planning software, was compared with that derived from the data generated in the present study. The dosimetry data generated and presented in this paper will help pre-planning of ophthalmic applications, using 125,seeds. |
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