X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1993-04-27
1994-08-16
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Absorption
378 64, 378149, A61N 510
Patent
active
053393473
ABSTRACT:
A method of performing radiation therapy on a patient, involving exposing a target, usually a tumor, to a therapeutic dose of high energy electromagnetic radiation, preferably X-ray radiation, in the form of at least two non-overlapping microbeams of radiation, each microbeam having a width of less than about 1 millimeter. Target tissue exposed to the microbeams receives a radiation dose during the exposure that exceeds the maximum dose that such tissue can survive. Non-target tissue between the microbeams receives a dose of radiation below the threshold amount of radiation that can be survived by the tissue, and thereby permits the non-target tissue to regenerate. The microbeams may be directed at the target from one direction, or from more than one direction in which case the microbeams overlap within the target tissue enhancing the lethal effect of the irradiation while sparing the surrounding healthy tissue.
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Dilmanian F. Avraham
Slatkin Daniel N.
Spanne Per O.
Anderson Thomas G.
Moser William R.
Pascarella David
Porta David P.
The United States of America as represented by the United States
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