The Journal of Korean Society for Radiation Therapy (대한방사선치료학회지)
- Volume 9 Issue 1
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- Pages.40-45
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- 1997
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- 1598-8449(pISSN)
The Use of Lens Shielding Device(L.S.D.) for a Conjunctival Lymphoma
- Cho Hyun Sang (Dept. of Radiation Oncology, Samsung Medical Center Seoul) ;
- Ju Sang Gyu (Dept. of Radiation Oncology, Samsung Medical Center Seoul) ;
- Song Ki Won (Dept. of Radiation Oncology, Samsung Medical Center Seoul) ;
- Park Young Hwan (Dept. of Radiation Oncology, Samsung Medical Center Seoul)
- Published : 1997.11.01
Abstract
When therapeutic irradiation is indicated for the orbital tumors, the greatest concern is the risk of radiation-induced cataract. Conjunctival lymphoma is one of the good examples. We would like to report the procedure of the lens shielding device(L.S.D) and the result of irradiated dose to the lens. L.S.D. consistes of two parts : load alloy to attenuate electron beam, and dental acryl which completely covers the lead alloy to avoid discomfort of cornea from contacting directly with cerrobend and side scattering by cerrobend. And for easy location and removal, side bars were made on each side. Radiation doses were meaured with TLD(TLD 3500 Hawshaw). Markus chamber in a polystyrene phantom. The phantom was irradiated with 9MeV electron beams from Clinac 2100C with