Method of minimizing distortion to radiation isodose contours an

Details Method of minimizing distortion to radiation isodose contours an Method of minimizing distortion to radiation isodose contours an

1993-07-16

1995-04-04

Pfaffle, Krista M.

Surgery

Truss

Pad

25036301, 25036307, 378 65, A61B 600

Patent

active

054027837

ABSTRACT:
A method for minimizing the distortion of the isodose contours created by tissue surface irregularities and for targeting the depth of maximum dose at an effective tissue depth during radiation therapy to a treatment field from a source is described. The method comprises the steps of: (i) placing an effective thickness of an anionic polymeric hydrogel into operational contact with the treatment field prior to the therapy; and (ii) administering the therapy in a manner such that the effective thickness of the anionic polymeric hydrogel is between the source and the treatment field, and the anionic polymeric hydrogel is in operational contact with the treatment field while the therapy is being administered. A preferred method is also described for marking the surface area of electron bombardment and radiation treatment portals on individuals prior to diagnostic magnetic resonance imaging. The method comprises the steps of: locating the area on the individual desired to be marked; selecting an appropriate marking device comprising an anionic polymeric hydrogel formed into a shape having at least one dimension of sufficient thickness to be discernable in a magnetic resonance image; placing the marking device at a location sufficiently near the located areas to appear in the magnetic resonance image and to indicate the location of the located area; and performing the magnetic resonance imaging while the marking device remains in place.

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Direct Mail Flyer from W & T Medical Systems, Inc., P.O. Box 888, Ambler, Pa. 19002, Telephone #(215) 628-2727 entitled T.E.M..TM. The Pliable Bolus (Tissue Equivalent Material), Jun. 18, 1993.

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