shrinking field technique

'shrinking field' technique

Radiation oncology A method used in RT for treating a large mediastinal lymphoma, in which the treatment field is ↓ or shrunk as the tumor responds or 'melts'. See Mantle port.
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All patients were treated on Telecobalt to a total dose of 66-70Gy over 6-7 weeks by shrinking field technique 5 days a week with conventional fraction and weekly cisplatinum chemotherapy (40mg/[m.sup.2])